MARY HAYNES F.N.P.
Prescription History 1902896921
Nurse Practitioner - Family in Lancaster, CA

Active since October 21, 2005PECOS Enrolled
45104 10TH ST W, LANCASTER, CA 93534(661) 942-2391 Get Directions

NPPES record last updated: December 1, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for MARY HAYNES F.N.P., an active Family specialist practicing in Lancaster, CA. Our medical registry currently tracks 6 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 361 documented patient claims. Among these therapy options, the most frequently utilized medication is Lisinopril, which accounts for 107 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.

6
Medications
361
Total Claims
1,191
30-Day Fills
Lisinopril
Most Prescribed · 107 claims
View details
6 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by MARY HAYNES F.N.P. in 2023, with prescription volumes, average cost per fill, and CA state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other CA PrescribersVs. CA Avg

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 107 Medicare prescriptions for Lisinopril, about the same volume as the typical California prescriber of this medication (100). Medicare paid an average of $12.16 per fill, versus $9.65 statewide.

How often this provider prescribes it

This provider
107
CA average
100.0

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

What Medicare paid per fill

This provider
$12.16
CA average
$9.65

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

349.9
30-Day Fills
standardized to 30-day supplies
10,506
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 101 Medicare prescriptions for Amlodipine Besylate, about 73% of the volume of the typical California prescriber of this medication (138). Medicare paid an average of $11.60 per fill, versus $9.16 statewide.

How often this provider prescribes it

This provider
101
CA average
138.0

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

What Medicare paid per fill

This provider
$11.60
CA average
$9.16

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

336.3
30-Day Fills
standardized to 30-day supplies
10,100
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 81 Medicare prescriptions for Losartan Potassium, about 70% of the volume of the typical California prescriber of this medication (116). Medicare paid an average of $12.25 per fill, versus $13.35 statewide.

How often this provider prescribes it

This provider
81
CA average
116.0

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

What Medicare paid per fill

This provider
$12.25
CA average
$13.35

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

269.7
30-Day Fills
standardized to 30-day supplies
8,100
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 36 Medicare prescriptions for Hydrochlorothiazide, about half the volume of the typical California prescriber of this medication (65). Medicare paid an average of $12.26 per fill, versus $6.99 statewide.

How often this provider prescribes it

This provider
36
CA average
65.0

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

What Medicare paid per fill

This provider
$12.26
CA average
$6.99

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

116.9
30-Day Fills
standardized to 30-day supplies
3,510
Days of Medication
total across all patients in 2023

About Bisoprolol Fumarate: Bisoprolol 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 belongs to a class of drugs known as beta blockers. 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. A cardioselective beta-1 adrenergic blocker. It is effective in the management of HYPERTENSION and ANGINA PECTORIS.

In 2023, this provider wrote 25 Medicare prescriptions for Bisoprolol Fumarate, about 78% of the volume of the typical California prescriber of this medication (32). Medicare paid an average of $27.14 per fill, versus $45.34 statewide.

How often this provider prescribes it

This provider
25
CA average
32.0

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

What Medicare paid per fill

This provider
$27.14
CA average
$45.34

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

83.3
30-Day Fills
standardized to 30-day supplies
2,500
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 11 Medicare prescriptions for Hydralazine Hcl, about a quarter of the volume of the typical California prescriber of this medication (41). Medicare paid an average of $24.40 per fill, versus $23.55 statewide.

How often this provider prescribes it

This provider
11
CA average
41.0

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

What Medicare paid per fill

This provider
$24.40
CA average
$23.55

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

35
30-Day Fills
standardized to 30-day supplies
1,050
Days of Medication
total across all patients in 2023
No medications match the current filters.
More than typical Typical Less than typical= prescription volume vs the average CA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the CA average cost per fill.

About this data. The prescription history for MARY HAYNES F.N.P. 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 Lancaster, CA 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 CA prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.