Ashish Atreja, MD
NPI 1831152883ActiveIndividual· Internal Medicine, Gastroenterology· Stanford, CA
Internal Medicine, Gastroenterology (MD) with Stanford Health Care, practicing in Stanford, California. Medicare paid $2,886 for services to 15 patients in 2024. Ethicon Inc. was the largest of 3 companies reporting payments in 2025, $769.27 in all, mostly consulting fees. Lists Stanford Health Care as a hospital affiliation.
Overview
| NPI | 1831152883 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 10, 2006 |
| Last updated in NPPES | Jan 22, 2026 |
| Certified by provider | Jan 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | C184563 | CA |
| Internal Medicine | 207R00000X | 35082919 | OH |
| Internal Medicine, Gastroenterology | 207RG0100X | 265164 | NY |
| Internal Medicine | 207R00000X | C184563 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Preventive Medicine (CA); Practitioner - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 22 across 8 procedure codes |
| Paid by Medicare | $2,886 |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Preventive Medicine |
| Secondary specialties | Gastroenterology, Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$769.27 · 3 payments from 3 companies
- 2024$30,648 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ethicon Inc. | $635.00 | 1 |
| Novo Nordisk Inc | $89.17 | 1 |
| Phathom Pharmaceuticals, Inc. | $45.10 | 1 |
What the 2025 payments were for
- Consulting Fee$635.00 · 1 payment
- Food and Beverage$134.27 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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