YSABEL VIVIANA REYES MD
Prescription History 1790722098
Internal Medicine in San Antonio, TX
Medicare Part D Prescription History
Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for YSABEL VIVIANA REYES MD, an active Internal Medicine specialist practicing in San Antonio, TX. Our medical registry currently tracks 16 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 344 documented patient claims. Among these therapy options, the most frequently utilized medication is Metformin Hcl, which accounts for 59 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.
| Medication | Prescriptions (2024)Rx (2024) | Avg Cost per FillCost / Fill | Vs. Other TX PrescribersVs. TX Avg |
|---|---|---|---|
| Metformin Hcl | 59 | $12.98 | ▼ Less than typical |
About Metformin Hcl: Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar. Show more ▾ It is used in patients with type 2 diabetes. 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. Metformin works by helping to restore your body's proper response to the insulin you naturally produce. It also decreases the amount of sugar that your liver makes and that your stomach/intestines absorb. A biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289) In 2024, this provider wrote 59 Medicare prescriptions for Metformin Hcl, about 61% of the volume of the typical Texas prescriber of this medication (96.3). Medicare paid an average of $12.98 per fill, versus $7.22 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 59 30-Day Fills standardized to 30-day supplies 1,747 Days of Medication total across all patients in 2024 | |||
| Pioglitazone Hcl | 37 | $17.57 | ≈ Typical |
About Pioglitazone Hcl: 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. Show more ▾ It works by helping to restore your body's proper response to insulin, thereby lowering your blood sugar. 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. Pioglitazone is used either alone or in combination with other diabetes medications (such as metformin or a sulfonylurea such as glyburide). Talk to your doctor about the risks and benefits of pioglitazone. A thiazolidinedione and PPAR GAMMA agonist that is used in the treatment of TYPE 2 DIABETES MELLITUS. In 2024, this provider wrote 37 Medicare prescriptions for Pioglitazone Hcl, about 85% of the volume of the typical Texas prescriber of this medication (43.6). Medicare paid an average of $17.57 per fill, versus $12.62 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 39 30-Day Fills standardized to 30-day supplies 1,095 Days of Medication total across all patients in 2024 | |||
| Amlodipine Besylate | 33 | $12.58 | ▼ Less than typical |
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 2024, this provider wrote 33 Medicare prescriptions for Amlodipine Besylate, about a quarter of the volume of the typical Texas prescriber of this medication (132.9). Medicare paid an average of $12.58 per fill, versus $6.07 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 33 30-Day Fills standardized to 30-day supplies 937 Days of Medication total across all patients in 2024 | |||
| Gabapentin | 28 | $26.69 | ▼ Less than typical |
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 2024, this provider wrote 28 Medicare prescriptions for Gabapentin, about a third of the volume of the typical Texas prescriber of this medication (96.4). Medicare paid an average of $26.69 per fill, versus $15.87 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 28 30-Day Fills standardized to 30-day supplies 840 Days of Medication total across all patients in 2024 | |||
| JanuviaSitagliptin Phosphate | 23 | $275.89▼ below TX avg | ▼ Less than typical |
About Januvia: Sitagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar. Show more ▾ It is used in people with type 2 diabetes. 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. Sitagliptin is a diabetes drug that works by increasing levels of natural substances called incretins. Incretins help to control blood sugar by increasing insulin release, especially after a meal. They also decrease the amount of sugar your liver makes. A pyrazine-derived DIPEPTIDYL-PEPTIDASE IV INHIBITOR and HYPOGLYCEMIC AGENT that increases the levels of the INCRETIN hormones GLUCAGON-LIKE PEPTIDE-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP). It is used in the treatment of TYPE 2 DIABETES. In 2024, this provider wrote 23 Medicare prescriptions for Januvia, about 68% of the volume of the typical Texas prescriber of this medication (33.9). Medicare paid an average of $275.89 per fill, versus $1,016.43 statewide. How often this provider prescribes it 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's average cost per fill is below the TX average for this medication. 23 30-Day Fills standardized to 30-day supplies 315 Days of Medication total across all patients in 2024 | |||
| Clonidine Hcl | 21 | $13.47 | ▼ Less than typical |
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. An imidazoline sympatholytic agent that stimulates ALPHA-2 ADRENERGIC RECEPTORS and central IMIDAZOLINE RECEPTORS. It is commonly used in the management of HYPERTENSION. In 2024, this provider wrote 21 Medicare prescriptions for Clonidine Hcl, about 70% of the volume of the typical Texas prescriber of this medication (30.1). Medicare paid an average of $13.47 per fill, versus $6.07 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 21 30-Day Fills standardized to 30-day supplies 630 Days of Medication total across all patients in 2024 | |||
| Losartan Potassium | 20 | $19.23 | ▼ Less than typical |
About Losartan Potassium: Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes. Show more ▾ It is also used to lower the risk of strokes in patients with high blood pressure and an enlarged heart. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Losartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). It works by relaxing blood vessels so that blood can flow more easily. An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II. In 2024, this provider wrote 20 Medicare prescriptions for Losartan Potassium, about 18% of the volume of the typical Texas prescriber of this medication (111.1). Medicare paid an average of $19.23 per fill, versus $9.74 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 22 30-Day Fills standardized to 30-day supplies 660 Days of Medication total across all patients in 2024 | |||
| Atorvastatin Calcium | 18 | $17.26 | ▼ Less than typical |
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 2024, this provider wrote 18 Medicare prescriptions for Atorvastatin Calcium, about 10% of the volume of the typical Texas prescriber of this medication (180.4). Medicare paid an average of $17.26 per fill, versus $9.48 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 20 30-Day Fills standardized to 30-day supplies 600 Days of Medication total across all patients in 2024 | |||
| Quetiapine Fumarate | 18 | $25.00 | ▼ Less than typical |
About Quetiapine Fumarate: This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder). Show more ▾ Quetiapine belongs to a class of drugs known as atypical antipsychotics. It works by helping to restore the balance of certain natural substances in the brain. A dibenzothiazepine and ANTIPSYCHOTIC AGENT that targets the SEROTONIN 5-HT2 RECEPTOR; HISTAMINE H1 RECEPTOR, adrenergic alpha1 and alpha2 receptors, as well as the DOPAMINE D1 RECEPTOR and DOPAMINE D2 RECEPTOR. It is used in the treatment of SCHIZOPHRENIA; BIPOLAR DISORDER and DEPRESSIVE DISORDER. In 2024, this provider wrote 18 Medicare prescriptions for Quetiapine Fumarate, about a third of the volume of the typical Texas prescriber of this medication (50.3). Medicare paid an average of $25.00 per fill, versus $18.12 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 18 30-Day Fills standardized to 30-day supplies 517 Days of Medication total across all patients in 2024 | |||
| Donepezil Hcl | 15 | $22.14 | ▼ Less than typical |
About Donepezil Hcl: Donepezil is used to treat confusion (dementia) related to Alzheimer's disease. Show more ▾ It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to function. This medication is an enzyme blocker that works by restoring the balance of natural substances (neurotransmitters) in the brain. An indan and piperidine derivative that acts as a selective and reversible inhibitor of ACETYLCHOLINESTERASE. Donepezil is highly selective for the central nervous system and is used in the management of mild to moderate DEMENTIA in ALZHEIMER DISEASE. In 2024, this provider wrote 15 Medicare prescriptions for Donepezil Hcl, about a quarter of the volume of the typical Texas prescriber of this medication (69.5). Medicare paid an average of $22.14 per fill, versus $12.48 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 15 30-Day Fills standardized to 30-day supplies 427 Days of Medication total across all patients in 2024 | |||
| Memantine Hcl | 14 | $36.15 | ▼ Less than typical |
About Memantine Hcl: Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease. Show more ▾ It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to perform daily functions. This medication works by blocking the action of a certain natural substance in the brain (glutamate) that is believed to be linked to symptoms of Alzheimer's disease. AMANTADINE derivative that has some dopaminergic effects. It has been proposed as an antiparkinson agent. In 2024, this provider wrote 14 Medicare prescriptions for Memantine Hcl, about a quarter of the volume of the typical Texas prescriber of this medication (68.4). Medicare paid an average of $36.15 per fill, versus $29.92 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 14 30-Day Fills standardized to 30-day supplies 344 Days of Medication total across all patients in 2024 | |||
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 13 | $34.30▼ below TX avg | ▼ Less than typical |
About Lantus Solostar: Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with 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. Insulin glargine is a man-made product that is similar to human insulin. It replaces the insulin that your body would normally make. It acts longer than regular insulin, providing a low, steady level of insulin. It works by helping blood sugar (glucose) get into cells so your body can use it for energy. Insulin glargine may be used with a shorter-acting insulin product. It may also be used alone or with other diabetes drugs. This monograph is about the following insulin glargine products: insulin glargine, insulin glargine-aglr, and insulin glargine-yfgn. A recombinant LONG ACTING INSULIN and HYPOGLYCEMIC AGENT that is used to manage BLOOD GLUCOSE in patients with DIABETES MELLITUS. In 2024, this provider wrote 13 Medicare prescriptions for Lantus Solostar, about a third of the volume of the typical Texas prescriber of this medication (35.6). Medicare paid an average of $34.30 per fill, versus $135.60 statewide. How often this provider prescribes it 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's average cost per fill is below the TX average for this medication. 13 30-Day Fills standardized to 30-day supplies 168 Days of Medication total across all patients in 2024 | |||
| Rosuvastatin Calcium | 12 | $22.88 | ▼ Less than typical |
About Rosuvastatin Calcium: 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. 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 to 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. Talk with your doctor for more details. A HYDROXYMETHYLGLUTARYL-COA-REDUCTASE INHIBITOR, or statin, that reduces the plasma concentrations of LDL-CHOLESTEROL; APOLIPOPROTEIN B, and TRIGLYCERIDES while increasing HDL-CHOLESTEROL levels in patients with HYPERCHOLESTEROLEMIA and those at risk for CARDIOVASCULAR DISEASES. In 2024, this provider wrote 12 Medicare prescriptions for Rosuvastatin Calcium, about 10% of the volume of the typical Texas prescriber of this medication (122.4). Medicare paid an average of $22.88 per fill, versus $13.19 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 12 30-Day Fills standardized to 30-day supplies 337 Days of Medication total across all patients in 2024 | |||
| Divalproex Sodium ErDivalproex Sodium | 11 | $38.47▼ below TX avg | ▼ Less than typical |
About Divalproex Sodium Er: This medication is used to treat seizure disorders, mental/mood conditions (such as manic phase of bipolar disorder), and to prevent migraine headaches. Show more ▾ It works by restoring the balance of certain natural substances (neurotransmitters) in the brain. A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS. In 2024, this provider wrote 11 Medicare prescriptions for Divalproex Sodium Er, about a third of the volume of the typical Texas prescriber of this medication (37.6). Medicare paid an average of $38.47 per fill, versus $53.10 statewide. How often this provider prescribes it 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's average cost per fill is below the TX average for this medication. 11 30-Day Fills standardized to 30-day supplies 330 Days of Medication total across all patients in 2024 | |||
| Megestrol Acetate | 11 | $25.88▼ below TX avg | ▼ Less than typical |
About Megestrol Acetate: Megestrol is used to treat loss of appetite and weight loss in people with AIDS. Show more ▾ Improving your appetite and gaining weight may help you feel better and be more active. Megestrol is similar to a natural substance made by the body called progesterone. Megestrol acetate is a progestogen with actions and uses similar to those of the progestogens in general. It also has anti-androgenic properties. It is given by mouth in the palliative treatment or as an adjunct to other therapy in endometrial carcinoma and in breast cancer. Megestrol acetate has been approved to treat anorexia and cachexia. (From Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Englewood, CO, 1995) In 2024, this provider wrote 11 Medicare prescriptions for Megestrol Acetate, about half the volume of the typical Texas prescriber of this medication (24.1). Medicare paid an average of $25.88 per fill, versus $58.36 statewide. How often this provider prescribes it 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's average cost per fill is below the TX average for this medication. 11 30-Day Fills standardized to 30-day supplies 330 Days of Medication total across all patients in 2024 | |||
| Memantine Hcl ErMemantine Hcl | 11 | $252.37 | ▼ Less than typical |
About Memantine Hcl Er: Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease. Show more ▾ It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to perform daily functions. This medication works by blocking the action of a certain natural substance in the brain (glutamate) that is believed to be linked to symptoms of Alzheimer's disease. AMANTADINE derivative that has some dopaminergic effects. It has been proposed as an antiparkinson agent. In 2024, this provider wrote 11 Medicare prescriptions for Memantine Hcl Er, about a third of the volume of the typical Texas prescriber of this medication (31.2). Medicare paid an average of $252.37 per fill, versus $94.53 statewide. How often this provider prescribes it 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 Gross Part D cost per fill; not the patient's out-of-pocket price. 11 30-Day Fills standardized to 30-day supplies 330 Days of Medication total across all patients in 2024 | |||
About this data. The prescription history for YSABEL VIVIANA REYES MD is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, 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 Internal Medicine 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 among TX prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.
About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.
