Prashant Singh, MBBS
NPI 1336580174ActiveIndividual· Internal Medicine, Gastroenterology· Ann Arbor, MI
Internal Medicine, Gastroenterology (MBBS) with Regents of the University of Michigan, practicing in Ann Arbor, Michigan. Their prescriptions cost Medicare Part D more than their services did: $104,772 for 280 claims, against $15,886 paid for services in 2024. Salix Pharmaceuticals, A Division of Bausch Health US, LLC was the largest of 3 companies reporting payments in 2025, $2,096 in all, mostly consulting fees. Lists University of Michigan Health System as a hospital affiliation.
Overview
| NPI | 1336580174 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MBBS |
| Sole proprietor | No |
| NPI issued | Jul 9, 2013 |
| Last updated in NPPES | Feb 25, 2020 |
| Certified by provider | Feb 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4301119371 | MI |
| Internal Medicine | 207R00000X | 4301119371 | MI |
| Internal Medicine | 207R00000X | L-255566 | MA |
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 (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 100 |
|---|---|
| Services billed | 176 across 36 procedure codes |
| Paid by Medicare | $15,886 |
Part D prescriptions in 2024
| Prescriptions (claims) | 280 · 458 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $104,772 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
Hospital affiliation
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
- 2025$2,096 · 3 payments from 3 companies
- 2024$103.22 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $1,950 | 1 |
| Ardelyx, Inc. | $100.58 | 1 |
| Phathom Pharmaceuticals, Inc. | $45.09 | 1 |
What the 2025 payments were for
- Consulting Fee$1,950 · 1 payment
- Food and Beverage$145.67 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 96 gastroenterologists in Ann Arbor · All gastroenterologists in Michigan