MARY ELLEN CLARK CFNP
Prescription History 1891031621
Nurse Practitioner - Family in Warren, IN

Active since December 26, 2012PECOS EnrolledAccepts Medicare Assignment
824 HUNTINGTON AVE, WARREN, IN 46792(260) 375-2965(260) 375-2969 Get Directions

NPPES record last updated: October 7, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 7, 2025, Sep 19, 2025, Jul 16, 2021 (3 updates tracked since 2021).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for MARY ELLEN CLARK CFNP, an active Family specialist practicing in Warren, IN. Our medical registry currently tracks 12 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 194 documented patient claims. Among these therapy options, the most frequently utilized medication is Levothyroxine Sodium, which accounts for 30 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.

12
Medications
194
Total Claims
350
30-Day Fills
Levothyroxine Sodium
Most Prescribed · 30 claims
View details
12 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by MARY ELLEN CLARK CFNP in 2023, with prescription volumes, average cost per fill, and IN state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other IN PrescribersVs. IN Avg

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 30 Medicare prescriptions for Levothyroxine Sodium, about 18% of the volume of the typical Indiana prescriber of this medication (164). Medicare paid an average of $11.76 per fill, versus $16.04 statewide.

How often this provider prescribes it

This provider
30
IN average
164.0

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

What Medicare paid per fill

This provider
$11.76
IN average
$16.04

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

53.3
30-Day Fills
standardized to 30-day supplies
1,589
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 18 Medicare prescriptions for Gabapentin, about 17% of the volume of the typical Indiana prescriber of this medication (107). Medicare paid an average of $22.52 per fill, versus $20.83 statewide.

How often this provider prescribes it

This provider
18
IN average
107.0

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

What Medicare paid per fill

This provider
$22.52
IN average
$20.83

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

32.3
30-Day Fills
standardized to 30-day supplies
940
Days of Medication
total across all patients in 2023

About Metoprolol Succinate: This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure. Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. This drug works by blocking the action of certain natural chemicals in your body (such as epinephrine) that affect the heart and blood vessels. This lowers heart rate, blood pressure, and strain on the heart. A selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.

In 2023, this provider wrote 17 Medicare prescriptions for Metoprolol Succinate, about 15% of the volume of the typical Indiana prescriber of this medication (115). Medicare paid an average of $10.47 per fill, versus $19.91 statewide.

How often this provider prescribes it

This provider
17
IN average
115.0

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

What Medicare paid per fill

This provider
$10.47
IN average
$19.91

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

39
30-Day Fills
standardized to 30-day supplies
1,135
Days of Medication
total across all patients in 2023

About Omeprazole: Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). Show more ▾

It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as heartburn, difficulty swallowing, and cough. This medication helps heal acid damage to the stomach and esophagus, helps prevent ulcers, and may help prevent cancer of the esophagus. Omeprazole belongs to a class of drugs known as proton pump inhibitors (PPIs). If you are self-treating with this medication, over-the-counter omeprazole products are used to treat frequent heartburn (occurring 2 or more days a week). Since it may take 1 to 4 days to have full effect, these products do not relieve heartburn right away. For over-the-counter products, carefully read the package instructions to make sure the product is right for you. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar brand names may contain different ingredients meant for different purposes. Taking the wrong product could harm you. A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.

In 2023, this provider wrote 17 Medicare prescriptions for Omeprazole, about 16% of the volume of the typical Indiana prescriber of this medication (109). Medicare paid an average of $12.89 per fill, versus $14.59 statewide.

How often this provider prescribes it

This provider
17
IN average
109.0

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

What Medicare paid per fill

This provider
$12.89
IN average
$14.59

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

32.3
30-Day Fills
standardized to 30-day supplies
970
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 16 Medicare prescriptions for Amlodipine Besylate, about 10% of the volume of the typical Indiana prescriber of this medication (154). Medicare paid an average of $4.91 per fill, versus $6.78 statewide.

How often this provider prescribes it

This provider
16
IN average
154.0

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

What Medicare paid per fill

This provider
$4.91
IN average
$6.78

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

24
30-Day Fills
standardized to 30-day supplies
684
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 15 Medicare prescriptions for Atorvastatin Calcium, about 7% of the volume of the typical Indiana prescriber of this medication (216). Medicare paid an average of $12.52 per fill, versus $11.73 statewide.

How often this provider prescribes it

This provider
15
IN average
216.0

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

What Medicare paid per fill

This provider
$12.52
IN average
$11.73

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

42
30-Day Fills
standardized to 30-day supplies
1,260
Days of Medication
total across all patients in 2023

About Hydrochlorothiazide: This medication is used to treat high blood pressure. Show more ▾

Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Hydrochlorothiazide belongs to a class of drugs known as diuretics/water pills. It works by causing you to make more urine. This helps your body get rid of extra salt and water. This medication also reduces extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, or kidney disease. This can lessen symptoms such as shortness of breath or swelling in your ankles or feet. A thiazide diuretic often considered the prototypical member of this class. It reduces the reabsorption of electrolytes from the renal tubules. This results in increased excretion of water and electrolytes, including sodium, potassium, chloride, and magnesium. It is used in the treatment of several disorders including edema, hypertension, diabetes insipidus, and hypoparathyroidism.

In 2023, this provider wrote 15 Medicare prescriptions for Hydrochlorothiazide, about 19% of the volume of the typical Indiana prescriber of this medication (78). Medicare paid an average of $2.48 per fill, versus $5.00 statewide.

How often this provider prescribes it

This provider
15
IN average
78.0

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

What Medicare paid per fill

This provider
$2.48
IN average
$5.00

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

15
30-Day Fills
standardized to 30-day supplies
426
Days of Medication
total across all patients in 2023

About Bupropion Xl: Bupropion is used to treat depression. Show more ▾

It can improve your mood and feelings of well-being. It may work by helping to restore the balance of certain natural chemicals (neurotransmitters) in your brain.

In 2023, this provider wrote 14 Medicare prescriptions for Bupropion Xl, about a third of the volume of the typical Indiana prescriber of this medication (42). Medicare paid an average of $22.85 per fill, versus $39.79 statewide.

How often this provider prescribes it

This provider
14
IN average
42.0

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

What Medicare paid per fill

This provider
$22.85
IN average
$39.79

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

28
30-Day Fills
standardized to 30-day supplies
826
Days of Medication
total across all patients in 2023

About Potassium Chloride: This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood. Show more ▾

A normal level of potassium in the blood is important. Potassium helps your cells, kidneys, heart, muscles, and nerves work properly. Most people get enough potassium by eating a well-balanced diet. Some conditions that can lower your body's potassium level include severe prolonged diarrhea and vomiting, hormone problems such as hyperaldosteronism, or treatment with water pills/diuretics. A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.

In 2023, this provider wrote 14 Medicare prescriptions for Potassium Chloride, about 19% of the volume of the typical Indiana prescriber of this medication (75). Medicare paid an average of $13.30 per fill, versus $30.29 statewide.

How often this provider prescribes it

This provider
14
IN average
75.0

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

What Medicare paid per fill

This provider
$13.30
IN average
$30.29

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

19.4
30-Day Fills
standardized to 30-day supplies
533
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 13 Medicare prescriptions for Furosemide, about 13% of the volume of the typical Indiana prescriber of this medication (97). Medicare paid an average of $4.14 per fill, versus $5.71 statewide.

How often this provider prescribes it

This provider
13
IN average
97.0

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

What Medicare paid per fill

This provider
$4.14
IN average
$5.71

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

19.3
30-Day Fills
standardized to 30-day supplies
539
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 13 Medicare prescriptions for Lisinopril, about 10% of the volume of the typical Indiana prescriber of this medication (131). Medicare paid an average of $10.78 per fill, versus $6.41 statewide.

How often this provider prescribes it

This provider
13
IN average
131.0

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

What Medicare paid per fill

This provider
$10.78
IN average
$6.41

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

29
30-Day Fills
standardized to 30-day supplies
844
Days of Medication
total across all patients in 2023

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 2023, this provider wrote 12 Medicare prescriptions for Losartan Potassium, about 11% of the volume of the typical Indiana prescriber of this medication (106). Medicare paid an average of $11.28 per fill, versus $10.81 statewide.

How often this provider prescribes it

This provider
12
IN average
106.0

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

What Medicare paid per fill

This provider
$11.28
IN average
$10.81

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

16.1
30-Day Fills
standardized to 30-day supplies
480
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 IN prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the IN average cost per fill.

About this data. The prescription history for MARY ELLEN CLARK CFNP 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 Family prescribing approach at this Warren, IN 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 IN prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.