Marlys S. Fassett, MD PHD
Dermatology Physician · San Francisco, CA
Marlys S. Fassett, MD PHD is a dermatology physician with a practice address in San Francisco, California, and NPI 1972898799, issued on Jun 9, 2011. Check the license (California A124742, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marlys S. Fassett
- Credential
- MD PHD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A124742 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1701 Divisadero St FL 3, San Francisco, CA 94115
- Phone
- (415) 353-7800
- Enumerated
- Jun 9, 2011
- Record last updated
- Apr 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (415) 353-7870
- Medicare enrollment
- Enrolled (PECOS I20150605001989); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 1701 Divisadero St FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marlys S. Fassett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A124742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average dermatology physician in 2024
351 Medicare Part D claims for 110 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Triamcinolone Acetonide36 claims
- Ketoconazole27 claims
- Minoxidil24 claims
- Clobetasol Propionate23 claims
- Mupirocin19 claims
- Dupixent Syringe16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,419.41
7 payments; by number, the most common kind was consulting fee; the largest payer was Regeneron Pharmaceuticals, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Ucsf Medical Group Business ServicesSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marlys S. Fassett among 2,083 dermatology physician records in California
Marlys S. Fassett, MD PHD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.
- NPI issued2011 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2011 · median 2006 among the 1,450 with a school on file
- Record last updated2015 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in San Francisco → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Timothy Berger, MDSan Francisco, CA 941151124079181
- Kerry Blacker, MDSan Francisco, CA 941151841378452
- Mary Connolly, MDSan Francisco, CA 941151942265772
- Quita Cruciger, M.D.San Francisco, CA 941151629161245
- Lindy Fox, MDSan Francisco, CA 941151790738953
- Anna Haemel, M.D.San Francisco, CA 941151962448522
- Frank Jonelis, MDSan Francisco, CA 941151245318849
- Mohammed Kashani-Sabet, M.D.San Francisco, CA 941151629026174
Common questions
What is Marlys S. Fassett, MD PHD's NPI number?
Marlys S. Fassett, MD PHD's National Provider Identifier (NPI) is 1972898799, issued on Jun 9, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Marlys S. Fassett, MD PHD located?
The NPPES record lists a practice address at 1701 Divisadero St FL 3, San Francisco, CA, 94115. Phone: (415) 353-7800. Providers update this record themselves, so call before visiting.
How can I verify Marlys S. Fassett, MD PHD's license?
NPPES lists California license number A124742, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marlys S. Fassett, MD PHD prescribe under Medicare Part D?
In 2024, Marlys S. Fassett, MD PHD had 351 Medicare Part D claims for 110 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Marlys S. Fassett, MD PHD's MIPS final score?
The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.