Reena Mary Thomas, M.D.
NPI 1154640423ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Prince Frederick, MD
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Prince Frederick, Maryland, licensed in MD, with an NPI issued in May 2010. Their prescriptions cost Medicare Part D more than their services did: $889,528 for 2,073 claims, against $126,638 paid for services in 2024. Amgen Inc. was the largest of 3 companies reporting payments in 2025, $46.62 in all, mostly food and beverage. Lists Calverthealth Medical Center as a hospital affiliation.
Overview
| NPI | 1154640423 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 25, 2010 |
| Last updated in NPPES | Jan 22, 2021 |
| Certified by provider | Jan 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | D0079447 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 411 |
|---|---|
| Services billed | 1,582 across 10 procedure codes |
| Paid by Medicare | $126,638 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,073 · 5,700 30-day fills |
|---|---|
| Patients | 268 |
| Total drug cost | $889,528 |
| Generic share | 43% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Hospital affiliation
- Calverthealth Medical CenterPrince Frederick, MD
Industry payments (Open Payments)
- 2025$46.62 · 3 payments from 3 companies
- 2024$46.77 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $16.97 | 1 |
| Novo Nordisk Inc | $15.70 | 1 |
| Lundbeck LLC | $13.95 | 1 |
What the 2025 payments were for
- Food and Beverage$46.62 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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