Raza Abbas Hasan, M.D.
NPI 1639519887ActiveIndividual· Internal Medicine, Gastroenterology· Annapolis, MD
Internal Medicine, Gastroenterology (M.D.) in Annapolis, Maryland, trained at University of Missouri, Kansas City, School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $244,773 for 933 claims, against $150,970 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $1,532 in all, mostly food and beverage.
Overview
| NPI | 1639519887 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 2, 2013 |
| Last updated in NPPES | Jun 16, 2020 |
| Certified by provider | Jun 16, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | D0089228 | 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 | 633 |
|---|---|
| Services billed | 4,500 across 46 procedure codes |
| Paid by Medicare | $150,970 |
Part D prescriptions in 2024
| Prescriptions (claims) | 933 · 2,005 30-day fills |
|---|---|
| Patients | 270 |
| Total drug cost | $244,773 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Missouri, Kansas City, School of Medicine |
|---|---|
| Graduation year | 2014 |
| 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
Industry payments (Open Payments)
- 2025$1,532 · 79 payments from 17 companies
- 2024$1,444 · 67 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $288.04 | 17 |
| Takeda Pharmaceuticals U.S.A., Inc. | $243.48 | 12 |
| Janssen Biotech, Inc. | $239.43 | 10 |
| Ipsen Biopharmaceuticals, Inc | $172.09 | 7 |
| Madrigal Pharmaceuticals | $171.04 | 13 |
What the 2025 payments were for
- Food and Beverage$1,532 · 79 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 33 gastroenterologists in Annapolis · All gastroenterologists in Maryland