Tabassum A. Chowdhury, M.D.
NPI 1942215751ActiveIndividual· Specialist· Bakersfield, CA
Specialist (M.D.) with Kern Gastroenterology Medical Group, practicing in Bakersfield, California. Their prescriptions cost Medicare Part D more than their services did: $661,924 for 2,009 claims, against $135,709 paid for services in 2024. Janssen Biotech, Inc. was the largest of 8 companies reporting payments in 2025, $1,271 in all, mostly food and beverage. Lists Adventist Health Bakersfield and 1 other hospital as hospital affiliations.
Overview
| NPI | 1942215751 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 30, 2006 |
| Last updated in NPPES | Jul 9, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | A60318 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 598 |
|---|---|
| Services billed | 2,336 across 41 procedure codes |
| Paid by Medicare | $135,709 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,009 · 2,609 30-day fills |
|---|---|
| Patients | 479 |
| Total drug cost | $661,924 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Kern Gastroenterology Medical GroupBakersfield, CA · 6 clinicians
Hospital affiliations
- Adventist Health BakersfieldBakersfield, CA
- Mercy HospitalBakersfield, CA
Industry payments (Open Payments)
- 2025$1,271 · 24 payments from 8 companies
- 2024$739.57 · 24 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $398.45 | 3 |
| Gilead Sciences, Inc. | $338.02 | 7 |
| Abbvie Inc. | $217.86 | 7 |
| Boston Scientific Corporation | $135.66 | 1 |
| Phathom Pharmaceuticals, Inc. | $98.11 | 3 |
What the 2025 payments were for
- Food and Beverage$1,172 · 23 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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