Gurbaj Singh Sahi, MD
NPI 1235593005ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Modesto, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Sutter Valley Medical Foundation, practicing in Modesto, California. Their prescriptions cost Medicare Part D more than their services did: $1,824,073 for 3,377 claims, against $59,779 paid for services in 2024. Amgen Inc. was the largest of 7 companies reporting payments in 2025, $421.89 in all, mostly food and beverage. Lists Adventist Health Sonora and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1235593005 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 7, 2016 |
| Last updated in NPPES | Nov 6, 2025 |
| Certified by provider | Nov 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A197072 | 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 - Endocrinology (CA); Practitioner - Internal Medicine (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 313 |
|---|---|
| Services billed | 1,658 across 40 procedure codes |
| Paid by Medicare | $59,779 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,377 · 6,573 30-day fills |
|---|---|
| Patients | 417 |
| Total drug cost | $1,824,073 |
| Generic share | 32% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Sutter Valley Medical FoundationModesto, CA · 2,500 clinicians
Hospital affiliations
- Adventist Health SonoraSonora, CA
- Memorial Hospital Los BanosLos Banos, CA
- Memorial Medical CenterModesto, CA
Industry payments (Open Payments)
- 2025$421.89 · 7 payments from 7 companies
- 2024$582.62 · 16 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $141.56 | 1 |
| Corcept Therapeutics | $104.52 | 1 |
| Ascendis Pharma Endocrinology Inc | $97.87 | 1 |
| Dexcom, Inc. | $22.98 | 1 |
| Insulet Corporation | $22.83 | 1 |
What the 2025 payments were for
- Food and Beverage$421.89 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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