SANTIAGO VILLARREAL M.D.
Prescription History 1225035199
Internal Medicine - Nephrology in San Antonio, TX

Active since July 07, 2005PECOS EnrolledAccepts Medicare Assignment
4151 CALLAGHAN RD, SUITE 103, SAN ANTONIO, TX 78228(210) 647-1195(210) 521-9473 Get Directions

NPPES record last updated: October 6, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for SANTIAGO VILLARREAL M.D., an active Nephrology specialist practicing in San Antonio, TX. Our medical registry currently tracks 19 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 605 documented patient claims. Among these therapy options, the most frequently utilized medication is Calcium Acetate, which accounts for 93 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.

19
Medications
605
Total Claims
1,053
30-Day Fills
Calcium Acetate
Most Prescribed · 93 claims
View details
19 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by SANTIAGO VILLARREAL M.D. in 2023, with prescription volumes, average cost per fill, and TX state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other TX PrescribersVs. TX Avg

About Calcium Acetate: Calcium acetate is used to prevent high blood phosphate levels in patients who are on dialysis due to severe kidney disease. Show more ▾

Dialysis removes some phosphate from your blood, but it is difficult to remove enough to keep your phosphate levels balanced. Decreasing blood phosphate levels can help keep your bones strong, prevent unsafe buildup of minerals in your body, and possibly decrease the risk of heart disease and strokes that can result from high phosphate levels. Calcium acetate is a natural mineral that works by holding onto phosphate from the diet so that it can pass out of your body.

In 2023, this provider wrote 93 Medicare prescriptions for Calcium Acetate, about 3 times the volume of the typical Texas prescriber of this medication (31). Medicare paid an average of $112.96 per fill, versus $124.43 statewide.

How often this provider prescribes it

This provider
93
TX average
31.0

This provider prescribes this medication more often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$112.96
TX average
$124.43

This provider's average cost per fill is below the TX average for this medication.

125.4
30-Day Fills
standardized to 30-day supplies
3,694
Days of Medication
total across all patients in 2023

About Sevelamer Carbonate: Sevelamer is used to lower high blood phosphorus (phosphate) levels in patients who are on dialysis due to severe kidney disease. Show more ▾

Dialysis removes some phosphate from your blood, but it is difficult to remove enough to keep your phosphate levels balanced. Decreasing blood phosphate levels can help keep your bones strong, prevent unsafe buildup of minerals in your body, and possibly decrease the risk of heart disease and strokes that can result from high phosphate levels. Sevelamer works by holding onto phosphate from the diet so that it can pass out of your body. A polymeric amine that binds phosphate and is used to treat HYPERPHOSPHATEMIA in patients with kidney disease.

In 2023, this provider wrote 79 Medicare prescriptions for Sevelamer Carbonate, about 1.6 times the volume of the typical Texas prescriber of this medication (49). Medicare paid an average of $663.94 per fill, versus $417.73 statewide.

How often this provider prescribes it

This provider
79
TX average
49.0

This provider prescribes this medication more often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$663.94
TX average
$417.73

Gross Part D cost per fill; not the patient's out-of-pocket price.

118.8
30-Day Fills
standardized to 30-day supplies
3,446
Days of Medication
total across all patients in 2023

About Carvedilol: Carvedilol is used to treat high blood pressure and heart failure. Show more ▾

It is also used after a heart attack to improve the chance of survival if your heart is not pumping well. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This drug works by blocking the action of certain natural substances in your body, such as epinephrine, on the heart and blood vessels. This effect lowers your heart rate, blood pressure, and strain on your heart. Carvedilol belongs to a class of drugs known as alpha and beta blockers. A carbazole and propanol derivative that acts as a non-cardioselective beta blocker and vasodilator. It has blocking activity for ALPHA 1 ADRENERGIC RECEPTORS and, at higher doses, may function as a blocker of CALCIUM CHANNELS; it also has antioxidant properties. Carvedilol is used in the treatment of HYPERTENSION; ANGINA PECTORIS; and HEART FAILURE. It can also reduce the risk of death following MYOCARDIAL INFARCTION.

In 2023, this provider wrote 56 Medicare prescriptions for Carvedilol, about 79% of the volume of the typical Texas prescriber of this medication (71). Medicare paid an average of $7.85 per fill, versus $11.44 statewide.

How often this provider prescribes it

This provider
56
TX average
71.0

This provider's prescribing volume for this medication is in line with the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$7.85
TX average
$11.44

This provider's average cost per fill is below the TX average for this medication.

116
30-Day Fills
standardized to 30-day supplies
3,465
Days of Medication
total across all patients in 2023

About Lisinopril: Lisinopril is used to treat high blood pressure. Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. It is also used to treat heart failure and to improve survival after a heart attack. Lisinopril belongs to a class of drugs known as ACE inhibitors. It works by relaxing blood vessels so blood can flow more easily. One of the ANGIOTENSIN-CONVERTING ENZYME INHIBITORS (ACE inhibitors), orally active, that has been used in the treatment of hypertension and congestive heart failure.

In 2023, this provider wrote 55 Medicare prescriptions for Lisinopril, about half the volume of the typical Texas prescriber of this medication (111). Medicare paid an average of $7.95 per fill, versus $6.92 statewide.

How often this provider prescribes it

This provider
55
TX average
111.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$7.95
TX average
$6.92

Gross Part D cost per fill; not the patient's out-of-pocket price.

110.3
30-Day Fills
standardized to 30-day supplies
3,310
Days of Medication
total across all patients in 2023

About Nifedipine Er: This medication is used to prevent certain types of chest pain (angina). Show more ▾

It may allow you to exercise more and decrease the frequency of angina attacks. Nifedipine belongs to a class of medications known as calcium channel blockers. It works by relaxing blood vessels so blood can flow more easily. This medication must be taken regularly to be effective. It should not be used to treat attacks of chest pain when they occur. Use other medications (such as sublingual nitroglycerin) to relieve attacks of chest pain as directed by your doctor. Consult your doctor or pharmacist for details. Older adults should discuss the risks and benefits of this medication with their doctor or pharmacist, as well as other possibly safer forms of nifedipine (such as the long-acting tablets). A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.

In 2023, this provider wrote 44 Medicare prescriptions for Nifedipine Er, about 1.2 times the volume of the typical Texas prescriber of this medication (37). Medicare paid an average of $48.51 per fill, versus $57.75 statewide.

How often this provider prescribes it

This provider
44
TX average
37.0

This provider's prescribing volume for this medication is in line with the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$48.51
TX average
$57.75

This provider's average cost per fill is below the TX average for this medication.

79
30-Day Fills
standardized to 30-day supplies
2,370
Days of Medication
total across all patients in 2023

About Amlodipine Besylate: Amlodipine is used with or without other medications to treat high blood pressure. Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Amlodipine belongs to a class of drugs known as calcium channel blockers. It works by relaxing blood vessels so blood can flow more easily. Amlodipine is also used to prevent certain types of chest pain (angina). It may help to increase your ability to exercise and decrease the frequency of angina attacks. It should not be used to treat attacks of chest pain when they occur. Use other medications (such as sublingual nitroglycerin) to relieve attacks of chest pain as directed by your doctor. A long-acting dihydropyridine calcium channel blocker. It is effective in the treatment of ANGINA PECTORIS and HYPERTENSION.

In 2023, this provider wrote 36 Medicare prescriptions for Amlodipine Besylate, about a quarter of the volume of the typical Texas prescriber of this medication (131). Medicare paid an average of $11.25 per fill, versus $7.22 statewide.

How often this provider prescribes it

This provider
36
TX average
131.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$11.25
TX average
$7.22

Gross Part D cost per fill; not the patient's out-of-pocket price.

76
30-Day Fills
standardized to 30-day supplies
2,280
Days of Medication
total across all patients in 2023

About Hydralazine Hcl: Hydralazine is used with or without other medications to treat high blood pressure. Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Hydralazine is called a vasodilator. It works by relaxing blood vessels so blood can flow through the body more easily.

In 2023, this provider wrote 33 Medicare prescriptions for Hydralazine Hcl, about 80% of the volume of the typical Texas prescriber of this medication (41). Medicare paid an average of $12.46 per fill, versus $21.33 statewide.

How often this provider prescribes it

This provider
33
TX average
41.0

This provider's prescribing volume for this medication is in line with the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$12.46
TX average
$21.33

This provider's average cost per fill is below the TX average for this medication.

58
30-Day Fills
standardized to 30-day supplies
1,740
Days of Medication
total across all patients in 2023

About Furosemide: Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease. Show more ▾

This can lessen symptoms such as shortness of breath and swelling in your arms, legs, and abdomen. This drug is also used to treat high blood pressure. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Furosemide is a water pill (diuretic) that causes you to make more urine. This helps your body get rid of extra water and salt. A benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY.

In 2023, this provider wrote 33 Medicare prescriptions for Furosemide, about half the volume of the typical Texas prescriber of this medication (78). Medicare paid an average of $6.01 per fill, versus $6.45 statewide.

How often this provider prescribes it

This provider
33
TX average
78.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$6.01
TX average
$6.45

This provider's average cost per fill is below the TX average for this medication.

58.8
30-Day Fills
standardized to 30-day supplies
1,747
Days of Medication
total across all patients in 2023

About Atorvastatin Calcium: 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. Show more ▾

It belongs to a group of drugs known as statins. It works by reducing the amount of cholesterol made by the liver. Lowering bad cholesterol and triglycerides and raising good cholesterol decreases the risk of heart disease and helps prevent strokes and heart attacks. In addition to eating a proper diet (such as a low-cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Consult your doctor for more details. A pyrrole and heptanoic acid derivative, HYDROXYMETHYLGLUTARYL-COA REDUCTASE INHIBITOR (statin), and ANTICHOLESTEREMIC AGENT that is used to reduce serum levels of LDL-CHOLESTEROL; APOLIPOPROTEIN B; and TRIGLYCERIDES. It is used to increase serum levels of HDL-CHOLESTEROL in the treatment of HYPERLIPIDEMIAS, and for the prevention of CARDIOVASCULAR DISEASES in patients with multiple risk factors.

In 2023, this provider wrote 22 Medicare prescriptions for Atorvastatin Calcium, about 13% of the volume of the typical Texas prescriber of this medication (172). Medicare paid an average of $15.68 per fill, versus $12.71 statewide.

How often this provider prescribes it

This provider
22
TX average
172.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$15.68
TX average
$12.71

Gross Part D cost per fill; not the patient's out-of-pocket price.

62
30-Day Fills
standardized to 30-day supplies
1,860
Days of Medication
total across all patients in 2023

About Gabapentin: Gabapentin is used with other medications to prevent and control seizures. Show more ▾

It is also used to relieve nerve pain following shingles (a painful rash due to herpes zoster infection) in adults. Gabapentin is known as an anticonvulsant or antiepileptic drug. A cyclohexane-gamma-aminobutyric acid derivative that is used for the treatment of PARTIAL SEIZURES; NEURALGIA; and RESTLESS LEGS SYNDROME.

In 2023, this provider wrote 21 Medicare prescriptions for Gabapentin, about a quarter of the volume of the typical Texas prescriber of this medication (94). Medicare paid an average of $11.94 per fill, versus $21.94 statewide.

How often this provider prescribes it

This provider
21
TX average
94.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$11.94
TX average
$21.94

This provider's average cost per fill is below the TX average for this medication.

29
30-Day Fills
standardized to 30-day supplies
870
Days of Medication
total across all patients in 2023

About Clonidine Hcl: This medication is used alone or with other medications to treat high blood pressure (hypertension). Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Clonidine belongs to a class of drugs (central alpha agonists) that act in the brain to lower blood pressure. It works by relaxing blood vessels so blood can flow more easily.

In 2023, this provider wrote 20 Medicare prescriptions for Clonidine Hcl, about 65% of the volume of the typical Texas prescriber of this medication (31). Medicare paid an average of $6.19 per fill, versus $9.57 statewide.

How often this provider prescribes it

This provider
20
TX average
31.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$6.19
TX average
$9.57

This provider's average cost per fill is below the TX average for this medication.

31
30-Day Fills
standardized to 30-day supplies
930
Days of Medication
total across all patients in 2023

About Doxazosin Mesylate: Doxazosin is used alone or with other drugs to treat high blood pressure (hypertension). Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This medication works by relaxing blood vessels so blood can flow more easily. Doxazosin is also used in men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). It does not shrink the prostate, but it works by relaxing the muscles in the prostate and part of the bladder. This helps to relieve symptoms of BPH such as difficulty in beginning the flow of urine, weak stream, and the need to urinate frequently or urgently (including during the middle of the night). Doxazosin belongs to a class of drugs known as alpha blockers. A prazosin-related compound that is a selective alpha-1-adrenergic blocker.

In 2023, this provider wrote 16 Medicare prescriptions for Doxazosin Mesylate, about half the volume of the typical Texas prescriber of this medication (27). Medicare paid an average of $8.27 per fill, versus $21.60 statewide.

How often this provider prescribes it

This provider
16
TX average
27.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.27
TX average
$21.60

This provider's average cost per fill is below the TX average for this medication.

20
30-Day Fills
standardized to 30-day supplies
600
Days of Medication
total across all patients in 2023

About Prednisone: Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders. Show more ▾

Prednisone belongs to a class of drugs known as corticosteroids. It decreases your immune system's response to various diseases to reduce symptoms such as swelling and allergic-type reactions. A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.

In 2023, this provider wrote 16 Medicare prescriptions for Prednisone, about a third of the volume of the typical Texas prescriber of this medication (47). Medicare paid an average of $5.02 per fill, versus $5.74 statewide.

How often this provider prescribes it

This provider
16
TX average
47.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$5.02
TX average
$5.74

This provider's average cost per fill is below the TX average for this medication.

24
30-Day Fills
standardized to 30-day supplies
665
Days of Medication
total across all patients in 2023

About Azithromycin: This medication is used to treat certain eye infections. Show more ▾

It is a macrolide antibiotic that works by stopping the growth of bacteria. This medication treats only bacterial eye infections. It will not work for other types of eye infections. Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness. A semi-synthetic macrolide antibiotic structurally related to ERYTHROMYCIN. It has been used in the treatment of Mycobacterium avium intracellulare infections, toxoplasmosis, and cryptosporidiosis.

In 2023, this provider wrote 16 Medicare prescriptions for Azithromycin, about a third of the volume of the typical Texas prescriber of this medication (42). Medicare paid an average of $5.88 per fill, versus $9.03 statewide.

How often this provider prescribes it

This provider
16
TX average
42.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$5.88
TX average
$9.03

This provider's average cost per fill is below the TX average for this medication.

16
30-Day Fills
standardized to 30-day supplies
80
Days of Medication
total across all patients in 2023

About Temazepam: This medication is used to treat a certain sleep problem (insomnia). Show more ▾

It may help you fall asleep faster, stay asleep longer, and lessen how often you wake up during the night, so you can get a better night's rest. Temazepam belongs to a class of drugs called benzodiazepines. It acts on your brain to produce a calming effect. Use of this medication is usually limited to short treatment periods of 1 to 2 weeks or less. If your insomnia continues for a longer time, talk to your doctor to see if you need other treatment. A benzodiazepine that acts as a GAMMA-AMINOBUTYRIC ACID modulator and anti-anxiety agent.

In 2023, this provider wrote 16 Medicare prescriptions for Temazepam, about half the volume of the typical Texas prescriber of this medication (31). Medicare paid an average of $8.87 per fill, versus $14.36 statewide.

How often this provider prescribes it

This provider
16
TX average
31.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.87
TX average
$14.36

This provider's average cost per fill is below the TX average for this medication.

16
30-Day Fills
standardized to 30-day supplies
390
Days of Medication
total across all patients in 2023

About Labetalol Hcl: Labetalol is used with or without other medications to treat high blood pressure (hypertension). Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This medication is both an alpha blocker and beta blocker. It works by blocking the action of certain natural chemicals in your body such as epinephrine on the heart and blood vessels. This effect lowers the heart rate, blood pressure, and strain on the heart.

In 2023, this provider wrote 13 Medicare prescriptions for Labetalol Hcl, about half the volume of the typical Texas prescriber of this medication (26). Medicare paid an average of $27.95 per fill, versus $51.60 statewide.

How often this provider prescribes it

This provider
13
TX average
26.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$27.95
TX average
$51.60

This provider's average cost per fill is below the TX average for this medication.

39
30-Day Fills
standardized to 30-day supplies
1,170
Days of Medication
total across all patients in 2023

About Levothyroxine Sodium: Levothyroxine is used to treat an underactive thyroid (hypothyroidism). Show more ▾

It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone is important for maintaining normal mental and physical activity. In children, having enough thyroid hormone is important for normal mental and physical development. This medication is also used to treat other types of thyroid disorders (such as thyroid cancer). This medication should not be used to treat infertility unless it is caused by low thyroid hormone levels. The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.

In 2023, this provider wrote 13 Medicare prescriptions for Levothyroxine Sodium, about 9% of the volume of the typical Texas prescriber of this medication (144). Medicare paid an average of $16.52 per fill, versus $17.11 statewide.

How often this provider prescribes it

This provider
13
TX average
144.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$16.52
TX average
$17.11

This provider's average cost per fill is below the TX average for this medication.

35
30-Day Fills
standardized to 30-day supplies
1,050
Days of Medication
total across all patients in 2023

About Sulfamethoxazole-Trimethoprim: This medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim. Show more ▾

It is used to treat a wide variety of bacterial infections (such as middle ear, urine, respiratory, and intestinal infections). It is also used to prevent and treat a certain type of pneumonia (pneumocystis-type). This medication should not be used by children less than 2 months of age due to the risk of serious side effects. This medication treats only certain types of infections. It will not work for viral infections (such as flu). Unnecessary use or misuse of any antibiotic can lead to its decreased effectiveness. A drug combination with broad-spectrum antibacterial activity against both gram-positive and gram-negative organisms. It is effective in the treatment of many infections, including PNEUMOCYSTIS PNEUMONIA in AIDS.

In 2023, this provider wrote 12 Medicare prescriptions for Sulfamethoxazole-Trimethoprim, about half the volume of the typical Texas prescriber of this medication (27). Medicare paid an average of $5.26 per fill, versus $6.17 statewide.

How often this provider prescribes it

This provider
12
TX average
27.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$5.26
TX average
$6.17

This provider's average cost per fill is below the TX average for this medication.

13
30-Day Fills
standardized to 30-day supplies
390
Days of Medication
total across all patients in 2023

About Farxiga: Dapagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes. Show more ▾

Controlling high blood sugar helps prevent kidney damage, blindness, nerve problems, loss of limbs, and sexual function problems. Proper control of diabetes may also lessen your risk of a heart attack or stroke. This medication is also used in people with type 2 diabetes and heart disease to lower the risk of going to the hospital for heart failure. Dapagliflozin works by increasing the removal of sugar by your kidneys. Dapagliflozin is also used to treat kidney disease and heart failure. It may help you live longer and lower your risk of going to the hospital for heart failure. Dapagliflozin works by increasing the removal of sodium by your kidneys.

In 2023, this provider wrote 11 Medicare prescriptions for Farxiga, about a third of the volume of the typical Texas prescriber of this medication (36). Medicare paid an average of $1,400.82 per fill, versus $1,035.01 statewide.

How often this provider prescribes it

This provider
11
TX average
36.0

This provider prescribes this medication less often than the average TX prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$1,400.82
TX average
$1,035.01

Gross Part D cost per fill; not the patient's out-of-pocket price.

26
30-Day Fills
standardized to 30-day supplies
780
Days of Medication
total across all patients in 2023
No medications match the current filters.
= the 5 medications this provider prescribes most. More than typical Typical Less than typical= prescription volume vs the average TX prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the TX average cost per fill.

About this data. The prescription history for SANTIAGO VILLARREAL M.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Nephrology prescribing approach at this San Antonio, TX practice.

Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average volume among TX prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.