Thomas Lloyd Simcox, MD
NPI 1124287461ActiveIndividual· Internal Medicine, Gastroenterology· Annapolis, MD
Internal Medicine, Gastroenterology (MD) in Annapolis, Maryland, trained at University of Maryland School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $372,641 for 1,266 claims, against $148,877 paid for services in 2024. Pfizer Inc. was the largest of 2 companies reporting payments in 2025, $53.39 in all, mostly food and beverage.
Overview
| NPI | 1124287461 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 2, 2008 |
| Last updated in NPPES | Sep 23, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | D0074289 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (DC); Practitioner - Gastroenterology (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 681 |
|---|---|
| Services billed | 1,646 across 31 procedure codes |
| Paid by Medicare | $148,877 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,266 · 2,535 30-day fills |
|---|---|
| Patients | 499 |
| Total drug cost | $372,641 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Anne Arundel Gastroenterology Associates, P.A.Stevensville, MD · 20 clinicians
Hospital affiliations
- Luminis Health Anne Arundel Medical Center, IncAnnapolis, MD
- University of MD Baltimore Washington Medical CenterGlen Burnie, MD
- University of MD Shore Medical Center at EastonEaston, MD
- University of MD Shore Medical Ctr at ChestertownChestertown, MD
Industry payments (Open Payments)
- 2025$53.39 · 3 payments from 2 companies
- 2024$361.61 · 13 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $34.08 | 2 |
| Abbvie Inc. | $19.31 | 1 |
What the 2025 payments were for
- Food and Beverage$53.39 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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