Gopanandan Parthasarathy, MBBS
NPI 1538523667ActiveIndividual· Internal Medicine, Hepatology· Stanford, CA
Internal Medicine, Hepatology (MBBS) with Stanford Health Care, practicing in Stanford, California. Their prescriptions cost Medicare Part D more than their services did: $72,286 for 248 claims, against $20,679 paid for services in 2024. Madrigal Pharmaceuticals reported $1,263 in payments in 2025, mostly travel and lodging. Lists Stanford Health Care and 1 other hospital as hospital affiliations.
Overview
| NPI | 1538523667 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MBBS |
| Sole proprietor | No |
| NPI issued | Apr 5, 2016 |
| Last updated in NPPES | Sep 3, 2026 |
| Certified by provider | Sep 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hepatology Primary | 207RI0008X | C197762 | CA |
| Internal Medicine | 207R00000X | C197762 | CA |
| Internal Medicine, Transplant Hepatology | 207RT0003X | C197762 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | C197762 | 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 | 142 |
|---|---|
| Services billed | 252 across 30 procedure codes |
| Paid by Medicare | $20,679 |
Part D prescriptions in 2024
| Prescriptions (claims) | 248 · 442 30-day fills |
|---|---|
| Patients | 118 |
| Total drug cost | $72,286 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
Industry payments (Open Payments)
- 2025$1,263 · 9 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $1,263 | 9 |
What the 2025 payments were for
- Travel and Lodging$874.34 · 3 payments
- Food and Beverage$388.52 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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