Thimmaiah Ganapathi Theethira, M.D.,
NPI 1225284359ActiveIndividual· Internal Medicine, Gastroenterology· Sacramento, CA
Internal Medicine, Gastroenterology (M.D.,) with Dignity Health Medical Foundation, practicing in Sacramento, California. Their prescriptions cost Medicare Part D more than their services did: $175,648 for 488 claims, against $96,362 paid for services in 2024. Salix Pharmaceuticals, A Division of Bausch Health US, LLC was the largest of 16 companies reporting payments in 2025, $1,524 in all, mostly food and beverage. Lists Mercy General Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1225284359 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., |
| Sole proprietor | No |
| NPI issued | Aug 8, 2008 |
| Last updated in NPPES | Jan 13, 2021 |
| Certified by provider | Jan 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A135528 | CA |
| Internal Medicine | 207R00000X | A135528 | 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 | 388 |
|---|---|
| Services billed | 823 across 36 procedure codes |
| Paid by Medicare | $96,362 |
Part D prescriptions in 2024
| Prescriptions (claims) | 488 · 640 30-day fills |
|---|---|
| Patients | 269 |
| Total drug cost | $175,648 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Dignity Health Medical FoundationFolsom, CA · 1,184 clinicians
Hospital affiliations
- Mercy General HospitalSacramento, CA
- Mercy San Juan Medical CenterCarmichael, CA
- Methodist Hospital of SacramentoSacramento, CA
Industry payments (Open Payments)
- 2025$1,524 · 61 payments from 16 companies
- 2024$1,033 · 28 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $261.37 | 12 |
| Madrigal Pharmaceuticals | $189.90 | 7 |
| Abbvie Inc. | $166.68 | 13 |
| Novo Nordisk Inc | $156.27 | 3 |
| Takeda Pharmaceuticals U.S.A., Inc. | $139.45 | 7 |
What the 2025 payments were for
- Food and Beverage$1,524 · 61 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 100 gastroenterologists in Sacramento · All gastroenterologists in California