Clark Rosen, MD
NPI 1609841048 · Otolaryngology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clark Rosen, MD is a Otolaryngology Physician provider in San Francisco, CA (NPI 1609841048).
Provider details
- NPI number
- 1609841048
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G152101 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
780 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 163 | $73 |
| Exam to Assess Movement of Vocal Cord Flaps Using an Endoscope31579 | 157 | $135 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 128 | $162 |
| Injection of Chemical for Paralysis of Nerve Muscles on Side of Voice Box64617 | 65 | $142 |
| Exam to Assess Movement of Vocal Cord Flaps Using an Endoscope31579 | 46 | $137 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 68 | 22 |
| Famotidine | 49 | 14 |
| Ipratropium Bromide | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$10,135 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 200 Lothrop StSuite 300, Eye & Ear InstitutePittsburgh, PA 15213-2546Phone: (412) 647-2100
Registry dates
- Enumerated
- 2006-02-21
- Last updated
- 2018-03-17
Frequently asked questions
- What is Clark Rosen's NPI number?
- Clark Rosen's National Provider Identifier (NPI) is 1609841048, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Rosen's specialty?
- Clark Rosen is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Clark Rosen located?
- Clark Rosen's practice location on file with NPPES is 2330 Post St Fl 5, San Francisco, CA 94115-3465.
- What is Clark Rosen's phone number?
- The practice phone number listed in the NPPES registry for Clark Rosen is (415) 885-7700.
- Does Clark Rosen accept Medicare?
- Clark Rosen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clark Rosen's NPI active?
- Yes — Clark Rosen's NPI (1609841048) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.