Sreenivas Mannam, M.D.
NPI 1629001334ActiveIndividual· Internal Medicine, Gastroenterology· Flint, MI
Internal Medicine, Gastroenterology (M.D.) with McLaren Bay Region, practicing in Flint, Michigan. Their prescriptions cost Medicare Part D more than their services did: $308,973 for 957 claims, against $42,627 paid for services in 2024. Genzyme Corporation reported $24.99 in payments in 2025, mostly food and beverage. Lists Ascension Genesys Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1629001334 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 8, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4301058532 | MI |
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 | 246 |
|---|---|
| Services billed | 325 across 26 procedure codes |
| Paid by Medicare | $42,627 |
Part D prescriptions in 2024
| Prescriptions (claims) | 957 · 1,124 30-day fills |
|---|---|
| Patients | 813 |
| Total drug cost | $308,973 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- McLaren Bay RegionBay City, MI · 113 clinicians
Hospital affiliations
- Ascension Genesys HospitalGrand Blanc, MI
- Hurley Medical CenterFlint, MI
- McLaren Bay RegionBay City, MI
- McLaren FlintFlint, MI
- Mymichigan Medical Center SaginawSaginaw, MI
Industry payments (Open Payments)
- 2025$24.99 · 1 payment from 1 company
- 2024$148.12 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $24.99 | 1 |
What the 2025 payments were for
- Food and Beverage$24.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 gastroenterologists in Flint · All gastroenterologists in Michigan