TY CARL MADDOX D.O.
Prescription History 1992871321
Internal Medicine in Irving, TX
What does Dr. Maddox prescribe?
In 2024, Dr. Maddox wrote 5,093 Medicare prescriptions for 87 medications. The most prescribed was Atorvastatin Calcium, with 557 prescriptions for 167 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Maddox prescribes.
Medications 87 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Texas prescribers.
What it is used for
Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Texas prescribers
Dr. Maddox wrote 557 prescriptions for Atorvastatin Calcium, about 3.1 times as often as the typical Texas prescriber of it (180). Medicare paid $10.88 per fill, versus $9.48 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Texas prescribers
Dr. Maddox wrote 361 prescriptions for Levothyroxine Sodium, about 2.4 times as often as the typical Texas prescriber of it (150). Medicare paid $10.16 per fill, versus $10.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Texas prescribers
Dr. Maddox wrote 237 prescriptions for Metformin Hcl Er, about 4.3 times as often as the typical Texas prescriber of it (56). Medicare paid $15.99 per fill, versus $9.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with Texas prescribers
Dr. Maddox wrote 226 prescriptions for Amlodipine Besylate, about 1.7 times as often as the typical Texas prescriber of it (133). Medicare paid $6.45 per fill, versus $6.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lisinopril is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Maddox wrote 194 prescriptions for Lisinopril, about 1.8 times as often as the typical Texas prescriber of it (108). Medicare paid $5.94 per fill, versus $7.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rosuvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Texas prescribers
Dr. Maddox wrote 184 prescriptions for Rosuvastatin Calcium, about 1.5 times as often as the typical Texas prescriber of it (122). Medicare paid $13.78 per fill, versus $13.19 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with Texas prescribers
Dr. Maddox wrote 129 prescriptions for Gabapentin, about 1.3 times as often as the typical Texas prescriber of it (96). Medicare paid $17.99 per fill, versus $15.87 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Texas prescribers
Dr. Maddox wrote 121 prescriptions for Tamsulosin Hcl, about 1.4 times as often as the typical Texas prescriber of it (86). Medicare paid $13.73 per fill, versus $14.12 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Texas prescribers
Dr. Maddox wrote 114 prescriptions for Omeprazole, about 1.4 times as often as the typical Texas prescriber of it (79). Medicare paid $14.92 per fill, versus $14.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Texas prescribers
Dr. Maddox wrote 108 prescriptions for Escitalopram Oxalate, about 2.1 times as often as the typical Texas prescriber of it (51). Medicare paid $10.09 per fill, versus $10.58 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Texas prescribers
Dr. Maddox wrote 107 prescriptions for Metoprolol Succinate, about as often as the typical Texas prescriber of it (101). Medicare paid $12.79 per fill, versus $14.00 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Maddox wrote 102 prescriptions for Lisinopril-Hydrochlorothiazide, about 2.7 times as often as the typical Texas prescriber of it (38). Medicare paid $8.58 per fill, versus $7.96 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 98 prescriptions for Losartan Potassium, about 88% as often as the typical Texas prescriber of it (111). Medicare paid $10.24 per fill, versus $9.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Texas prescribers
Dr. Maddox wrote 98 prescriptions for Pantoprazole Sodium, about 1.2 times as often as the typical Texas prescriber of it (81). Medicare paid $13.36 per fill, versus $11.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with Texas prescribers
Dr. Maddox wrote 95 prescriptions for Montelukast Sodium, about 1.4 times as often as the typical Texas prescriber of it (69). Medicare paid $10.89 per fill, versus $10.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Simvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Texas prescribers
Dr. Maddox wrote 95 prescriptions for Simvastatin, about 1.5 times as often as the typical Texas prescriber of it (62). Medicare paid $8.27 per fill, versus $8.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Texas prescribers
Dr. Maddox wrote 93 prescriptions for Furosemide, about 1.2 times as often as the typical Texas prescriber of it (78). Medicare paid $5.45 per fill, versus $5.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Texas prescribers
Dr. Maddox wrote 92 prescriptions for Metformin Hcl, about as often as the typical Texas prescriber of it (96). Medicare paid $60.04 per fill, versus $7.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glimepiride is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 77 prescriptions for Glimepiride, about 1.8 times as often as the typical Texas prescriber of it (44). Medicare paid $5.41 per fill, versus $8.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 77 prescriptions for Jardiance, about 1.5 times as often as the typical Texas prescriber of it (52). Medicare paid $1,424.87 per fill, versus $1,092.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Maddox wrote 77 prescriptions for Trazodone Hcl, about as often as the typical Texas prescriber of it (67). Medicare paid $10.15 per fill, versus $8.61 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dulaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 74 prescriptions for Trulicity, about 2.2 times as often as the typical Texas prescriber of it (34). Medicare paid $1,820.31 per fill, versus $1,393.87 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Texas prescribers
Dr. Maddox wrote 71 prescriptions for Duloxetine Hcl, about 1.4 times as often as the typical Texas prescriber of it (52). Medicare paid $25.71 per fill, versus $23.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Texas prescribers
Dr. Maddox wrote 68 prescriptions for Synthroid, about 1.7 times as often as the typical Texas prescriber of it (40). Medicare paid $83.14 per fill, versus $68.20 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 61 prescriptions for Lantus Solostar, about 1.7 times as often as the typical Texas prescriber of it (36). Medicare paid $141.25 per fill, versus $135.60 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Carvedilol is used to treat high blood pressure and heart failure.
Compared with Texas prescribers
Dr. Maddox wrote 60 prescriptions for Carvedilol, about 85% as often as the typical Texas prescriber of it (71). Medicare paid $7.88 per fill, versus $8.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Texas prescribers
Dr. Maddox wrote 55 prescriptions for Sertraline Hcl, about as often as the typical Texas prescriber of it (59). Medicare paid $7.47 per fill, versus $9.11 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Maddox wrote 50 prescriptions for Hydrochlorothiazide, about 78% as often as the typical Texas prescriber of it (65). Medicare paid $4.10 per fill, versus $4.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pravastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Texas prescribers
Dr. Maddox wrote 49 prescriptions for Pravastatin Sodium, about as often as the typical Texas prescriber of it (52). Medicare paid $11.91 per fill, versus $13.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with Texas prescribers
Dr. Maddox wrote 48 prescriptions for Allopurinol, about as often as the typical Texas prescriber of it (47). Medicare paid $33.41 per fill, versus $9.68 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Doxazosin is used alone or with other drugs to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Maddox wrote 47 prescriptions for Doxazosin Mesylate, about 1.7 times as often as the typical Texas prescriber of it (28). Medicare paid $9.17 per fill, versus $15.33 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Texas prescribers
Dr. Maddox wrote 46 prescriptions for Potassium Chloride, about 74% as often as the typical Texas prescriber of it (62). Medicare paid $10.73 per fill, versus $19.18 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat pain caused by nerve damage due to diabetes, shingles (herpes zoster) infection, or spinal cord injury.
Compared with Texas prescribers
Dr. Maddox wrote 45 prescriptions for Pregabalin, about 86% as often as the typical Texas prescriber of it (53). Medicare paid $22.44 per fill, versus $25.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Fluticasone is used to relieve seasonal and year-round allergic and non-allergic nasal symptoms, such as stuffy/runny nose, itching, and sneezing.
Compared with Texas prescribers
Dr. Maddox wrote 44 prescriptions for Fluticasone Propionate, about 80% as often as the typical Texas prescriber of it (55). Medicare paid $17.04 per fill, versus $15.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This drug is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Maddox wrote 44 prescriptions for Olmesartan-Hydrochlorothiazide, about 1.5 times as often as the typical Texas prescriber of it (29). Medicare paid $39.19 per fill, versus $32.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with Texas prescribers
Dr. Maddox wrote 44 prescriptions for Tramadol Hcl, about 72% as often as the typical Texas prescriber of it (61). Medicare paid $4.36 per fill, versus $7.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Texas prescribers
Dr. Maddox wrote 37 prescriptions for Albuterol Sulfate Hfa, about 65% as often as the typical Texas prescriber of it (57). Medicare paid $27.60 per fill, versus $28.56 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clopidogrel is used to prevent heart attacks and strokes in persons with heart disease (recent heart attack), recent stroke, or blood circulation disease (peripheral vascular disease).
Compared with Texas prescribers
Dr. Maddox wrote 37 prescriptions for Clopidogrel, about half as often as the typical Texas prescriber of it (64). Medicare paid $9.96 per fill, versus $11.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This drug is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Maddox wrote 37 prescriptions for Losartan-Hydrochlorothiazide, about as often as the typical Texas prescriber of it (38). Medicare paid $13.86 per fill, versus $14.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with Texas prescribers
Dr. Maddox wrote 37 prescriptions for Prednisone, about 79% as often as the typical Texas prescriber of it (47). Medicare paid $1.56 per fill, versus $3.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Vitamin D (ergocalciferol-D2, cholecalciferol-D3, alfacalcidol) is a fat-soluble vitamin that helps your body absorb calcium and phosphorus.
Compared with Texas prescribers
Dr. Maddox wrote 37 prescriptions for Vitamin D2, about as often as the typical Texas prescriber of it (36). Medicare paid $14.20 per fill, versus $11.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Irbesartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 35 prescriptions for Irbesartan, about 1.2 times as often as the typical Texas prescriber of it (30). Medicare paid $16.35 per fill, versus $17.53 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Maddox wrote 35 prescriptions for Metoprolol Tartrate, about half as often as the typical Texas prescriber of it (59). Medicare paid $7.09 per fill, versus $6.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pioglitazone is a diabetes drug (thiazolidinedione-type, also called "glitazones") used along with a proper diet and exercise program to control high blood sugar in patients with type 2 diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 32 prescriptions for Pioglitazone Hcl, about 73% as often as the typical Texas prescriber of it (44). Medicare paid $72.59 per fill, versus $12.62 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with Texas prescribers
Dr. Maddox wrote 28 prescriptions for Finasteride, about half as often as the typical Texas prescriber of it (54). Medicare paid $20.29 per fill, versus $13.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This drug is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Maddox wrote 28 prescriptions for Valsartan-Hydrochlorothiazide, about as often as the typical Texas prescriber of it (26). Medicare paid $25.16 per fill, versus $31.58 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Sitagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Texas prescribers
Dr. Maddox wrote 26 prescriptions for Januvia, about 77% as often as the typical Texas prescriber of it (34). Medicare paid $888.94 per fill, versus $1,016.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Maddox wrote 25 prescriptions for Bupropion Xl, about 66% as often as the typical Texas prescriber of it (38). Medicare paid $27.34 per fill, versus $24.94 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with Texas prescribers
Dr. Maddox wrote 25 prescriptions for Ezetimibe, about half as often as the typical Texas prescriber of it (53). Medicare paid $21.47 per fill, versus $23.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tirzepatide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 25 prescriptions for Mounjaro, about half as often as the typical Texas prescriber of it (51). Medicare paid $1,227.29 per fill, versus $1,267.11 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 25 prescriptions for Ozempic, about 37% as often as the typical Texas prescriber of it (67). Medicare paid $1,639.84 per fill, versus $1,293.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Maddox wrote 24 prescriptions for Atenolol, about 77% as often as the typical Texas prescriber of it (31). Medicare paid $10.33 per fill, versus $7.49 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Olmesartan is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Maddox wrote 24 prescriptions for Olmesartan Medoxomil, about half as often as the typical Texas prescriber of it (43). Medicare paid $28.58 per fill, versus $18.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as bipolar disorder, schizophrenia, Tourette's syndrome, and irritability associated with autistic disorder).
Compared with Texas prescribers
Dr. Maddox wrote 23 prescriptions for Aripiprazole, about half as often as the typical Texas prescriber of it (41). Medicare paid $84.53 per fill, versus $59.96 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lovastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with Texas prescribers
Dr. Maddox wrote 23 prescriptions for Lovastatin, about 89% as often as the typical Texas prescriber of it (26). Medicare paid $13.84 per fill, versus $8.97 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Texas prescribers
Dr. Maddox wrote 21 prescriptions for Anoro Ellipta, about 73% as often as the typical Texas prescriber of it (29). Medicare paid $480.00 per fill, versus $581.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Isosorbide mononitrate is used to prevent chest pain (angina) in patients with a certain heart condition (coronary artery disease).
Compared with Texas prescribers
Dr. Maddox wrote 21 prescriptions for Isosorbide Mononitrate Er, about half as often as the typical Texas prescriber of it (43). Medicare paid $13.81 per fill, versus $11.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Texas prescribers
Dr. Maddox wrote 21 prescriptions for Ultra-Fine Short Pen Needle, about as often as the typical Texas prescriber of it (19). Medicare paid $48.50 per fill, versus $93.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This drug is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Maddox wrote 19 prescriptions for Irbesartan-Hydrochlorothiazide, about 85% as often as the typical Texas prescriber of it (22). Medicare paid $23.34 per fill, versus $19.25 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a wide variety of bacterial infections, including those that cause acne.
Compared with Texas prescribers
Dr. Maddox wrote 18 prescriptions for Doxycycline Hyclate, about half as often as the typical Texas prescriber of it (33). Medicare paid $9.24 per fill, versus $13.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin lispro is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 18 prescriptions for Humalog Kwikpen U-100, about half as often as the typical Texas prescriber of it (31). Medicare paid $519.70 per fill, versus $255.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with Texas prescribers
Dr. Maddox wrote 17 prescriptions for Alendronate Sodium, about 33% as often as the typical Texas prescriber of it (52). Medicare paid $5.93 per fill, versus $8.44 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with Texas prescribers
Dr. Maddox wrote 17 prescriptions for Buspirone Hcl, about 36% as often as the typical Texas prescriber of it (47). Medicare paid $11.68 per fill, versus $14.51 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed.
Compared with Texas prescribers
Dr. Maddox wrote 17 prescriptions for Famotidine, about 35% as often as the typical Texas prescriber of it (49). Medicare paid $18.19 per fill, versus $14.87 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with Texas prescribers
Dr. Maddox wrote 17 prescriptions for Lorazepam, about half as often as the typical Texas prescriber of it (39). Medicare paid $0.99 per fill, versus $6.76 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (wheezing and shortness of breath) caused by asthma or ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Texas prescribers
Dr. Maddox wrote 17 prescriptions for Symbicort, about 67% as often as the typical Texas prescriber of it (25). Medicare paid $347.57 per fill, versus $317.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body.
Compared with Texas prescribers
Dr. Maddox wrote 17 prescriptions for Warfarin Sodium, about half as often as the typical Texas prescriber of it (34). Medicare paid $12.66 per fill, versus $8.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Benazepril is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Maddox wrote 16 prescriptions for Benazepril Hcl, about 71% as often as the typical Texas prescriber of it (22). Medicare paid $3.26 per fill, versus $10.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to relieve moderate to severe pain.
Compared with Texas prescribers
Dr. Maddox wrote 16 prescriptions for Hydrocodone-Acetaminophen, about 13% as often as the typical Texas prescriber of it (120). Medicare paid $4.49 per fill, versus $25.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cefdinir is used to treat a wide variety of bacterial infections.
Compared with Texas prescribers
Dr. Maddox wrote 15 prescriptions for Cefdinir, about half as often as the typical Texas prescriber of it (31). Medicare paid $17.64 per fill, versus $15.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, anxiety disorders, post-traumatic stress disorder).
Compared with Texas prescribers
Dr. Maddox wrote 15 prescriptions for Paroxetine Hcl, about half as often as the typical Texas prescriber of it (27). Medicare paid $12.91 per fill, versus $14.29 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety, panic attacks, and social anxiety disorder).
Compared with Texas prescribers
Dr. Maddox wrote 15 prescriptions for Venlafaxine Hcl Er, about half as often as the typical Texas prescriber of it (31). Medicare paid $17.89 per fill, versus $23.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Maddox wrote 14 prescriptions for Amitriptyline Hcl, about half as often as the typical Texas prescriber of it (28). Medicare paid $18.31 per fill, versus $14.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Maddox wrote 14 prescriptions for Bupropion Hcl Sr, about half as often as the typical Texas prescriber of it (24). Medicare paid $47.59 per fill, versus $19.43 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ipratropium is used to treat a runny nose caused by the common cold or seasonal allergies.
Compared with Texas prescribers
Dr. Maddox wrote 14 prescriptions for Ipratropium Bromide, about 37% as often as the typical Texas prescriber of it (38). Medicare paid $16.59 per fill, versus $29.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Valsartan is used to treat high blood pressure and heart failure.
Compared with Texas prescribers
Dr. Maddox wrote 14 prescriptions for Valsartan, about 38% as often as the typical Texas prescriber of it (37). Medicare paid $13.45 per fill, versus $26.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clonazepam is used to prevent and control seizures.
Compared with Texas prescribers
Dr. Maddox wrote 13 prescriptions for Clonazepam, about 27% as often as the typical Texas prescriber of it (48). Medicare paid $15.47 per fill, versus $8.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder).
Compared with Texas prescribers
Dr. Maddox wrote 13 prescriptions for Fluoxetine Hcl, about 35% as often as the typical Texas prescriber of it (37). Medicare paid $8.08 per fill, versus $10.79 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Sitagliptin/metformin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 12 prescriptions for Janumet Xr, about half as often as the typical Texas prescriber of it (20). Medicare paid $979.90 per fill, versus $937.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levocetirizine is an antihistamine used to relieve allergy symptoms such as watery eyes, runny nose, itching eyes/nose, and sneezing.
Compared with Texas prescribers
Dr. Maddox wrote 12 prescriptions for Levocetirizine Dihydrochloride, about 30% as often as the typical Texas prescriber of it (40). Medicare paid $5.67 per fill, versus $12.60 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a combination of 2 drugs: empagliflozin and metformin.
Compared with Texas prescribers
Dr. Maddox wrote 12 prescriptions for Synjardy Xr, about 34% as often as the typical Texas prescriber of it (35). Medicare paid $540.46 per fill, versus $1,089.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used in men who do not make enough of a natural substance called testosterone.
Compared with Texas prescribers
Dr. Maddox wrote 12 prescriptions for Testosterone Cypionate, about 39% as often as the typical Texas prescriber of it (31). Medicare paid $5.26 per fill, versus $43.91 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Baclofen is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury/disease).
Compared with Texas prescribers
Dr. Maddox wrote 11 prescriptions for Baclofen, about 27% as often as the typical Texas prescriber of it (41). Medicare paid $3.83 per fill, versus $16.19 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder).
Compared with Texas prescribers
Dr. Maddox wrote 11 prescriptions for Olanzapine, about 26% as often as the typical Texas prescriber of it (42). Medicare paid $56.76 per fill, versus $22.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Texas prescribers
Dr. Maddox wrote 11 prescriptions for Trelegy Ellipta, about 20% as often as the typical Texas prescriber of it (56). Medicare paid $1,593.37 per fill, versus $860.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin degludec is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Texas prescribers
Dr. Maddox wrote 11 prescriptions for Tresiba Flextouch U-200, about 36% as often as the typical Texas prescriber of it (31). Medicare paid $1,517.70 per fill, versus $1,059.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with Texas prescribers
Dr. Maddox wrote 11 prescriptions for Valacyclovir, about half as often as the typical Texas prescriber of it (23). Medicare paid $21.64 per fill, versus $35.56 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Maddox’s prescriptions
What does Dr. Maddox prescribe most?
In 2024 Medicare Part D data, Dr. Maddox's most prescribed medications were Atorvastatin Calcium (557), Levothyroxine Sodium (361) and Metformin Hcl Er (237).
How does Dr. Maddox's prescribing compare with other Texas prescribers?
Of the 87 medications with a state comparison, Dr. Maddox prescribes 21 more often than the typical Texas prescriber, 23 about as often and 43 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Maddox prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Texas prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
