Isaac L. Raijman, MD
NPI 1689679557ActiveIndividual· Internal Medicine, Gastroenterology· Houston, TX
Internal Medicine, Gastroenterology (MD) with Texas Digestive Disease Consultants, PLLC, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $539,928 for 1,376 claims, against $169,380 paid for services in 2024. Boston Scientific Corporation was the largest of 17 companies reporting payments in 2025, $74,863 in all, mostly speaking and faculty fees. Lists Baptist Beaumont Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1689679557 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 16, 2005 |
| Last updated in NPPES | Apr 12, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | H7210 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 623 |
|---|---|
| Services billed | 1,425 across 72 procedure codes |
| Paid by Medicare | $169,380 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,376 · 2,247 30-day fills |
|---|---|
| Patients | 477 |
| Total drug cost | $539,928 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Texas Digestive Disease Consultants, PLLCFlower Mound, TX · 608 clinicians
Hospital affiliations
- Baptist Beaumont HospitalBeaumont, TX
- Baylor St Lukes Medical CenterHouston, TX
- Houston Methodist HospitalHouston, TX
- Houston Methodist Sugarland HospitalSugar Land, TX
- Memorial Hermann Hospital SystemHouston, TX
Industry payments (Open Payments)
- 2025$74,863 · 175 payments from 17 companies
- 2024$23,744 · 159 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $67,050 | 83 |
| Medtronic, Inc. | $5,997 | 14 |
| Abbvie Inc. | $669.33 | 36 |
| Pfizer Inc. | $268.97 | 13 |
| Takeda Pharmaceuticals U.S.A., Inc. | $228.38 | 8 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$56,425 · 27 payments
- Travel and Lodging$7,921 · 20 payments
- Consulting Fee$7,000 · 3 payments
- Food and Beverage$3,517 · 125 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Houston
- 1427360197
- 1073889770
- 1902109531
- 1831632975
- 1699226654
- 1891096475
- 1699081422
- 1740486810
- 1982778569
- 1508080839
- 1245352814
- 1174616023
All Internal Medicine, Gastroenterology providers in Texas →