Sivakumar Reddy Munnangi, M.D.
NPI 1447432463ActiveIndividual· Internal Medicine, Gastroenterology· Merced, CA
Internal Medicine, Gastroenterology (M.D.) in Merced, California, licensed in CA, with an NPI issued in November 2007. Their prescriptions cost Medicare Part D more than their services did: $620,894 for 2,617 claims, against $282,985 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,640 in all, mostly food and beverage. Lists John C Fremont Healthcare District and 1 other hospital as hospital affiliations.
Overview
| NPI | 1447432463 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 30, 2007 |
| Last updated in NPPES | Aug 27, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A052645 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,444 |
|---|---|
| Services billed | 2,907 across 35 procedure codes |
| Paid by Medicare | $282,985 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,617 · 3,866 30-day fills |
|---|---|
| Patients | 1,503 |
| Total drug cost | $620,894 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Hospital affiliations
- John C Fremont Healthcare DistrictMariposa, CA
- Mercy Medical CenterMerced, CA
Industry payments (Open Payments)
- 2025$1,640 · 77 payments from 14 companies
- 2024$1,502 · 69 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $398.40 | 19 |
| Janssen Biotech, Inc. | $326.74 | 13 |
| Gilead Sciences, Inc. | $259.97 | 7 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $246.40 | 20 |
| Braintree Laboratories, Inc. | $85.49 | 3 |
What the 2025 payments were for
- Food and Beverage$1,541 · 76 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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