MR. MICHAEL O'BRIEN PA-C
Prescription History 1801090121
Physician Assistant - Medical in Orlando, FL

Active since June 12, 2007PECOS EnrolledAccepts Medicare Assignment
1222 S ORANGE AVE, ORLANDO, FL 32806(407) 649-6907(407) 841-2035 Get Directions

NPPES record last updated: November 15, 2016. 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 MR. MICHAEL O'BRIEN PA-C, an active Medical specialist practicing in Orlando, FL. Our medical registry currently tracks 8 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 139 documented patient claims. Among these therapy options, the most frequently utilized medication is Potassium Chloride, which accounts for 29 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.

8
Medications
139
Total Claims
246
30-Day Fills
Potassium Chloride
Most Prescribed · 29 claims
View details
8 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by MR. MICHAEL O'BRIEN PA-C in 2023, with prescription volumes, average cost per fill, and FL state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other FL PrescribersVs. FL Avg

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 29 Medicare prescriptions for Potassium Chloride, about half the volume of the typical Florida prescriber of this medication (55). Medicare paid an average of $16.56 per fill, versus $29.03 statewide.

How often this provider prescribes it

This provider
29
FL average
55.0

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

What Medicare paid per fill

This provider
$16.56
FL average
$29.03

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

33
30-Day Fills
standardized to 30-day supplies
588
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 21 Medicare prescriptions for Atorvastatin Calcium, about 11% of the volume of the typical Florida prescriber of this medication (192). Medicare paid an average of $18.31 per fill, versus $11.76 statewide.

How often this provider prescribes it

This provider
21
FL average
192.0

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

What Medicare paid per fill

This provider
$18.31
FL average
$11.76

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

57
30-Day Fills
standardized to 30-day supplies
1,710
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 18 Medicare prescriptions for Furosemide, about a quarter of the volume of the typical Florida prescriber of this medication (72). Medicare paid an average of $2.00 per fill, versus $5.58 statewide.

How often this provider prescribes it

This provider
18
FL average
72.0

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

What Medicare paid per fill

This provider
$2.00
FL average
$5.58

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

18
30-Day Fills
standardized to 30-day supplies
135
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 17% of the volume of the typical Florida prescriber of this medication (99). Medicare paid an average of $21.37 per fill, versus $20.16 statewide.

How often this provider prescribes it

This provider
17
FL average
99.0

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

What Medicare paid per fill

This provider
$21.37
FL average
$20.16

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

45
30-Day Fills
standardized to 30-day supplies
1,350
Days of Medication
total across all patients in 2023

About Amiodarone Hcl: This medication is used to treat certain types of serious (possibly fatal) irregular heartbeat (such as recurrent ventricular fibrillation/tachycardia). Show more ▾

It is used to restore normal heart rhythm and maintain a regular, steady heartbeat. Amiodarone is known as an anti-arrhythmic drug. It works by blocking certain electrical signals in the heart that can cause an irregular heartbeat.

In 2023, this provider wrote 16 Medicare prescriptions for Amiodarone Hcl, about half the volume of the typical Florida prescriber of this medication (33). Medicare paid an average of $18.32 per fill, versus $33.56 statewide.

How often this provider prescribes it

This provider
16
FL average
33.0

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

What Medicare paid per fill

This provider
$18.32
FL average
$33.56

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

16.4
30-Day Fills
standardized to 30-day supplies
390
Days of Medication
total across all patients in 2023

About Metoprolol Tartrate: Metoprolol 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 also used to treat chest pain (angina) and to improve survival after a heart attack. Metoprolol 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 selective adrenergic beta-1 blocking agent that is commonly used to treat ANGINA PECTORIS; HYPERTENSION; and CARDIAC ARRHYTHMIAS.

In 2023, this provider wrote 16 Medicare prescriptions for Metoprolol Tartrate, about a quarter of the volume of the typical Florida prescriber of this medication (78). Medicare paid an average of $10.27 per fill, versus $7.36 statewide.

How often this provider prescribes it

This provider
16
FL average
78.0

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

What Medicare paid per fill

This provider
$10.27
FL average
$7.36

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 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 11 Medicare prescriptions for Gabapentin, about 11% of the volume of the typical Florida prescriber of this medication (103). Medicare paid an average of $4.91 per fill, versus $19.25 statewide.

How often this provider prescribes it

This provider
11
FL average
103.0

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

What Medicare paid per fill

This provider
$4.91
FL average
$19.25

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

11
30-Day Fills
standardized to 30-day supplies
160
Days of Medication
total across all patients in 2023

About Tamsulosin Hcl: Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). Show more ▾

It does not shrink the prostate, but it works by relaxing the muscles in the prostate and 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 often or urgently (including during the middle of the night). Tamsulosin belongs to a class of drugs known as alpha blockers. Do not use this medication to treat high blood pressure.

In 2023, this provider wrote 11 Medicare prescriptions for Tamsulosin Hcl, about 13% of the volume of the typical Florida prescriber of this medication (87). Medicare paid an average of $21.49 per fill, versus $17.32 statewide.

How often this provider prescribes it

This provider
11
FL average
87.0

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

What Medicare paid per fill

This provider
$21.49
FL average
$17.32

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

24
30-Day Fills
standardized to 30-day supplies
720
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 FL prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the FL average cost per fill.

About this data. The prescription history for MR. MICHAEL O'BRIEN PA-C 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 Medical prescribing approach at this Orlando, FL 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 FL prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.