Vasuevan Unnithan Raghuraman, MD
NPI 1073582961ActiveIndividual· Internal Medicine, Gastroenterology· Tulsa, OK
Internal Medicine, Gastroenterology (MD) with Warren Clinic Inc, practicing in Tulsa, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $392,259 for 1,333 claims, against $89,030 paid for services in 2024. Abbvie Inc. was the largest of 17 companies reporting payments in 2025, $2,737 in all, mostly food and beverage. Lists Saint Francis Hospital Muskogee and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1073582961 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | May 28, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25011 | OK |
| Internal Medicine, Gastroenterology | 207RG0100X | 37588 | KY |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 482 |
|---|---|
| Services billed | 947 across 40 procedure codes |
| Paid by Medicare | $89,030 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,333 · 1,981 30-day fills |
|---|---|
| Patients | 443 |
| Total drug cost | $392,259 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Warren Clinic IncTulsa, OK · 883 clinicians
Hospital affiliations
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$2,737 · 126 payments from 17 companies
- 2024$2,433 · 126 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $924.51 | 43 |
| Janssen Biotech, Inc. | $447.00 | 21 |
| Pfizer Inc. | $316.07 | 17 |
| Madrigal Pharmaceuticals | $162.81 | 6 |
| Takeda Pharmaceuticals U.S.A., Inc. | $156.26 | 7 |
What the 2025 payments were for
- Food and Beverage$2,653 · 125 payments
- Education$84.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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