Ramin Khashayar, MD
NPI 1003801358ActiveIndividual· Internal Medicine, Critical Care Medicine· Walnut Creek, CA
Internal Medicine, Critical Care Medicine (MD) in Walnut Creek, California, trained at University of California, San Francisco School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $765,726 for 2,101 claims, against $405,827 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. was the largest of 20 companies reporting payments in 2025, $1,482 in all, mostly food and beverage.
Overview
| NPI | 1003801358 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 13, 2005 |
| Last updated in NPPES | Jul 8, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | G077458 | CA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | G077458 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,188 |
|---|---|
| Services billed | 3,970 across 49 procedure codes |
| Paid by Medicare | $405,827 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,101 · 2,864 30-day fills |
|---|---|
| Patients | 346 |
| Total drug cost | $765,726 |
| Generic share | 48% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical groups
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
- John Muir Trauma Physicians Billing ServiceWalnut Creek, CA · 113 clinicians
- Muir Pulmonary Critical CareWalnut Creek, CA · 13 clinicians
Hospital affiliations
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$1,482 · 31 payments from 20 companies
- 2024$1,107 · 24 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $265.87 | 4 |
| Jazz Pharmaceuticals Inc. | $213.63 | 5 |
| Mallinckrodt Hospital Products Inc. | $145.08 | 1 |
| Actelion Pharmaceuticals US, Inc. | $121.83 | 1 |
| Novo Nordisk Inc | $121.82 | 1 |
What the 2025 payments were for
- Food and Beverage$1,482 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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