Clark A. Rosen, MD
NPI 1609841048ActiveIndividual· Otolaryngology· San Francisco, CA
Otolaryngology (MD) in San Francisco, California, trained at Rush Medical College of Rush University (class of 1989). 275 Medicare patients in 2024, $105,190 paid; nearly all of their 184 Part D prescriptions were generic (99%). Precigen, Inc. was the largest of 2 companies reporting payments in 2025, $9,873 in all, mostly consulting fees.
Overview
| NPI | 1609841048 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 21, 2006 |
| Last updated in NPPES | Mar 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | G152101 | CA |
| Specialist | 174400000X | MD056293L | PA |
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 - Otolaryngology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 275 |
|---|---|
| Services billed | 948 across 44 procedure codes |
| Paid by Medicare | $105,190 |
Part D prescriptions in 2024
| Prescriptions (claims) | 184 · 338 30-day fills |
|---|---|
| Patients | 53 |
| Total drug cost | $4,962 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Otolaryngology |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
Hospital affiliation
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$9,873 · 10 payments from 2 companies
- 2024$10,135 · 15 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Precigen, Inc. | $9,812 | 9 |
| Steris Corporation | $60.91 | 1 |
What the 2025 payments were for
- Consulting Fee$5,175 · 2 payments
- Travel and Lodging$4,322 · 3 payments
- Food and Beverage$375.60 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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