THOMAS R MERRING P.A.
Prescription History 1447507421
Physician Assistant in Wilmington, DE
What does Thomas Merring prescribe?
In 2024, Thomas Merring wrote 1,526 Medicare prescriptions for 14 medications. The most prescribed was Oxycodone Hcl, with 251 prescriptions for 209 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 Thomas Merring prescribes.
Medications 14 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 Delaware prescribers.
What it is used for
This medication is used to help relieve moderate to severe pain.
Compared with Delaware prescribers
Thomas Merring wrote 251 prescriptions for Oxycodone Hcl, about 3.1 times as often as the typical Delaware prescriber of it (81). Medicare paid $5.02 per fill, versus $15.85 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with Delaware prescribers
Thomas Merring wrote 246 prescriptions for Gabapentin, about 3 times as often as the typical Delaware prescriber of it (83). Medicare paid $4.25 per fill, versus $17.47 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 medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation).
Compared with Delaware prescribers
Thomas Merring wrote 242 prescriptions for Celecoxib, about 6.6 times as often as the typical Delaware prescriber of it (37). Medicare paid $34.99 per fill, versus $35.01 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Delaware prescribers
Thomas Merring wrote 211 prescriptions for Omeprazole, about 2.2 times as often as the typical Delaware prescriber of it (95). Medicare paid $8.33 per fill, versus $16.00 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
Diazepam is used to treat anxiety, alcohol withdrawal, and seizures.
Compared with Delaware prescribers
Thomas Merring wrote 178 prescriptions for Diazepam, about 6.1 times as often as the typical Delaware prescriber of it (29). Medicare paid $1.87 per fill, versus $11.48 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 medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Delaware prescribers
Thomas Merring wrote 160 prescriptions for Ondansetron Hcl, about 6.1 times as often as the typical Delaware prescriber of it (26). Medicare paid $5.22 per fill, versus $13.00 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
Meloxicam is used to treat arthritis.
Compared with Delaware prescribers
Thomas Merring wrote 47 prescriptions for Meloxicam, about as often as the typical Delaware prescriber of it (49). Medicare paid $5.34 per fill, versus $5.98 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
Mupirocin is used to treat certain skin infections (such as impetigo).
Compared with Delaware prescribers
Thomas Merring wrote 45 prescriptions for Mupirocin, about 1.2 times as often as the typical Delaware prescriber of it (36). Medicare paid $5.83 per fill, versus $7.85 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 combination medication is used to relieve moderate to severe pain.
Compared with Delaware prescribers
Thomas Merring wrote 39 prescriptions for Hydrocodone-Acetaminophen, about half as often as the typical Delaware prescriber of it (69). Medicare paid $6.26 per fill, versus $18.80 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
See also Warning section.
Compared with Delaware prescribers
Thomas Merring wrote 32 prescriptions for Tramadol Hcl, about 68% as often as the typical Delaware prescriber of it (47). Medicare paid $3.01 per fill, versus $7.96 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
Amoxicillin is used to treat a wide variety of bacterial infections.
Compared with Delaware prescribers
Thomas Merring wrote 29 prescriptions for Amoxicillin, about 67% as often as the typical Delaware prescriber of it (44). Medicare paid $2.05 per fill, versus $3.08 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 medication is used to help relieve moderate to severe pain.
Compared with Delaware prescribers
Thomas Merring wrote 23 prescriptions for Hydromorphone Hcl, about half as often as the typical Delaware prescriber of it (44). Medicare paid $4.89 per fill, versus $15.89 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
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery.
Compared with Delaware prescribers
Thomas Merring wrote 12 prescriptions for Xarelto, about 21% as often as the typical Delaware prescriber of it (58). Medicare paid $275.35 per fill, versus $1,099.59 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 medication is a combination of two antibiotics: sulfamethoxazole and trimethoprim.
Compared with Delaware prescribers
Thomas Merring wrote 11 prescriptions for Sulfamethoxazole-Trimethoprim, about half as often as the typical Delaware prescriber of it (26). Medicare paid $17.13 per fill, versus $4.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Thomas Merring’s prescriptions
What does Thomas Merring prescribe most?
In 2024 Medicare Part D data, Thomas Merring's most prescribed medications were Oxycodone Hcl (251), Gabapentin (246) and Celecoxib (242).
How does Thomas Merring's prescribing compare with other Delaware prescribers?
Of the 14 medications with a state comparison, Thomas Merring prescribes 6 more often than the typical Delaware prescriber, 2 about as often and 6 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Thomas Merring 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 Delaware 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.
