Marlys Fassett, MD PHD
NPI 1972898799 · Dermatology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marlys Fassett, MD PHD is a Dermatology Physician provider in San Francisco, CA (NPI 1972898799).
Provider details
- NPI number
- 1972898799
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Female
- Sole proprietor
- No
- License
- A124742 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
421 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 114 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 80 | $107 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $148 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 61 | $61 |
| Biopsy of Related Skin Growth, First Growth11102 | 37 | $114 |
| Destruction of Skin Growth, 1-14 Growths |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 36 | 20 |
| Ketoconazole | 27 | 13 |
| Minoxidil | 24 | — |
| Clobetasol Propionate | 23 | 14 |
| Mupirocin | 19 | — |
| Dupilumabbrand: Dupixent Syringe | 16 | — |
| Desoximetasone | 13 | — |
| Betamethasone Dipropionate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,419 across 7 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
Registry dates
- Enumerated
- 2011-06-09
- Last updated
- 2015-04-06
Frequently asked questions
- What is Marlys Fassett's NPI number?
- Marlys Fassett's National Provider Identifier (NPI) is 1972898799, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marlys Fassett's specialty?
- Marlys Fassett is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Marlys Fassett located?
- Marlys Fassett's practice location on file with NPPES is 1701 Divisadero St Fl 3, San Francisco, CA 94115-3011.
- What is Marlys Fassett's phone number?
- The practice phone number listed in the NPPES registry for Marlys Fassett is (415) 353-7800.
- Does Marlys Fassett accept Medicare?
- Marlys Fassett is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marlys Fassett's NPI active?
- Yes — Marlys Fassett's NPI (1972898799) is active in the NPPES registry as of the last update on 2015-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.