DR. SAMANTHA JEAN MERCK M.D.
Prescription History 1467890921
Internal Medicine - Pulmonary Disease in Tulsa, OK
What does Dr. Merck prescribe?
In 2024, Dr. Merck wrote 354 Medicare prescriptions for 13 medications. The most prescribed was Trelegy Ellipta (fluticasone/umeclidin/vilanter), with 96 prescriptions for 19 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Merck prescribes.
Medications 13 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Oklahoma prescribers.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Oklahoma prescribers
Dr. Merck wrote 96 prescriptions for Trelegy Ellipta, about 1.6 times as often as the typical Oklahoma prescriber of it (59). Medicare paid $693.50 per fill, versus $823.62 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Oklahoma prescribers
Dr. Merck wrote 68 prescriptions for Albuterol Sulfate Hfa, about as often as the typical Oklahoma prescriber of it (68). Medicare paid $26.97 per fill, versus $28.14 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Oklahoma prescribers
Dr. Merck wrote 49 prescriptions for Breztri Aerosphere, about 1.4 times as often as the typical Oklahoma prescriber of it (36). Medicare paid $745.85 per fill, versus $773.69 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Oklahoma prescribers
Dr. Merck wrote 22 prescriptions for Stiolto Respimat, about 76% as often as the typical Oklahoma prescriber of it (29). Medicare paid $713.68 per fill, versus $604.10 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with Oklahoma prescribers
Dr. Merck wrote 17 prescriptions for Prednisone, about 37% as often as the typical Oklahoma prescriber of it (46). Medicare paid $6.27 per fill, versus $3.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with Oklahoma prescribers
Dr. Merck wrote 16 prescriptions for Montelukast Sodium, about 21% as often as the typical Oklahoma prescriber of it (75). Medicare paid $12.18 per fill, versus $16.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Oklahoma prescribers
Dr. Merck wrote 14 prescriptions for Anoro Ellipta, about half as often as the typical Oklahoma prescriber of it (27). Medicare paid $437.88 per fill, versus $548.01 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (wheezing and shortness of breath) caused by asthma or ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with Oklahoma prescribers
Dr. Merck wrote 13 prescriptions for Fluticasone-Salmeterol, about half as often as the typical Oklahoma prescriber of it (27). Medicare paid $124.85 per fill, versus $139.04 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ipratropium is used to treat a runny nose caused by the common cold or seasonal allergies.
Compared with Oklahoma prescribers
Dr. Merck wrote 13 prescriptions for Ipratropium Bromide, about 34% as often as the typical Oklahoma prescriber of it (39). Medicare paid $10.58 per fill, versus $28.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levalbuterol is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with Oklahoma prescribers
Dr. Merck wrote 12 prescriptions for Levalbuterol Tartrate Hfa, about 70% as often as the typical Oklahoma prescriber of it (17). Medicare paid $118.44 per fill, versus $62.34 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pirfenidone is used to treat a certain lung disease called idiopathic pulmonary fibrosis (IPF).
Compared with Oklahoma prescribers
Dr. Merck wrote 12 prescriptions for Pirfenidone, about half as often as the typical Oklahoma prescriber of it (21). Medicare paid $762.38 per fill, versus $1,434.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Umeclidinium is used to control and prevent symptoms (such as wheezing, shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes bronchitis and emphysema).
Compared with Oklahoma prescribers
Dr. Merck wrote 11 prescriptions for Incruse Ellipta, about half as often as the typical Oklahoma prescriber of it (22). Medicare paid $331.34 per fill, versus $390.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Oklahoma prescribers
Dr. Merck wrote 11 prescriptions for Omeprazole, about 10% as often as the typical Oklahoma prescriber of it (107). Medicare paid $19.20 per fill, versus $18.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Merck’s prescriptions
What does Dr. Merck prescribe most?
In 2024 Medicare Part D data, Dr. Merck's most prescribed medications were Trelegy Ellipta (96), Albuterol Sulfate Hfa (68) and Breztri Aerosphere (49).
How does Dr. Merck's prescribing compare with other Oklahoma prescribers?
Of the 13 medications with a state comparison, Dr. Merck prescribes 2 more often than the typical Oklahoma prescriber, 2 about as often and 9 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Merck prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Oklahoma prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
