S Ranga Nathan, M.D,
NPI 1235326828ActiveIndividual· Internal Medicine, Gastroenterology· Humble, TX
Internal Medicine, Gastroenterology (M.D,) in Humble, Texas, trained at Howard University College of Medicine (class of 1977). Their prescriptions cost Medicare Part D more than their services did: $61,138 for 328 claims, against $38,339 paid for services in 2024.
Overview
| NPI | 1235326828 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D, |
| Sole proprietor | Yes |
| NPI issued | Sep 27, 2007 |
| Last updated in NPPES | Mar 5, 2026 |
| Certified by provider | Mar 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | F6190 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 173 |
|---|---|
| Services billed | 379 across 13 procedure codes |
| Paid by Medicare | $38,339 |
Part D prescriptions in 2024
| Prescriptions (claims) | 328 · 570 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $61,138 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | Howard University College of Medicine |
|---|---|
| Graduation year | 1977 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Houston Regional Gastroenterology Institute PLLCSugar Land, TX · 40 clinicians
Hospital affiliation
- Memorial Hermann Northeast HospitalHumble, TX
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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