Jenny Oh, M.D.
NPI 1386657856ActiveIndividual· Internal Medicine, Rheumatology· Tarzana, CA
Internal Medicine, Rheumatology (M.D.) in Tarzana, California, trained at State University of New York at Buffalo School of Medicine (class of 1998). In 2024 Medicare paid $1,382,272 for 618 patients, and Part D covered 1,389 of their prescriptions, 80% of them generic. Amgen Inc. was the largest of 23 companies reporting payments in 2025, $3,762 in all, mostly food and beverage.
Overview
| NPI | 1386657856 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Jan 9, 2023 |
| Certified by provider | Jan 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | A71626 | 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 - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 618 |
|---|---|
| Services billed | 99,943 across 116 procedure codes |
| Paid by Medicare | $1,382,272 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,389 · 2,454 30-day fills |
|---|---|
| Patients | 228 |
| Total drug cost | $1,317,940 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Rheumatology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Boris D Ratiner, MD, IncTarzana, CA · 6 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$3,762 · 195 payments from 23 companies
- 2024$5,833 · 281 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $771.97 | 31 |
| Abbvie Inc. | $463.71 | 33 |
| Radius Health, Inc. | $338.77 | 21 |
| Novartis Pharmaceuticals Corporation | $319.10 | 25 |
| Janssen Biotech, Inc. | $239.30 | 17 |
What the 2025 payments were for
- Food and Beverage$3,762 · 195 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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