NPPES file of Aug 9, 2026

Cynthia Lea Chen, M.D.

Dermatology Physician · San Francisco, CA

Cynthia Lea Chen, M.D. is a dermatology physician with a practice address in San Francisco, California, and NPI 1043465545, issued on Nov 25, 2008. Check the license (California A106034, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043465545
Name
Cynthia Lea Chen
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
A106034 CA
Self-reported in NPPES; status is on the state search
Practice location
1701 Divisadero St, San Francisco, CA 94115
Phone
(415) 353-7800
Enumerated
Nov 25, 2008
Record last updated
Jan 24, 2022
Fax
(415) 353-7870
Medicare enrollment
Enrolled (PECOS I20110419000981); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1701 Divisadero St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Regina-Celeste Ahmad, M.D., PHDDermatology Physician1861629321
  2. Erin Amerson, M.D.Dermatology Physician1679732671
  3. Ryan Arakaki, MDDermatology Physician1063850600
  4. Timothy Berger, MDDermatology Physician1124079181
  5. David Buchholz, MDPediatrics Physician1487738191
  6. Daniel Butler, M.D.Internal Medicine Physician1013320738

Verify Cynthia Lea Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A106034
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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35% fewer Medicare Part D claims than the average dermatology physician in 2024

517 Medicare Part D claims for 219 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Cynthia Chen517
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide60 claims
  2. Fluocinonide49 claims
  3. Fluorouracil44 claims
  4. Clobetasol Propionate38 claims
  5. Calcipotriene19 claims
  6. Hydrocortisone19 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.

Industry payments in 2024: $119.60

4 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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.

  1. Cynthia Chen$119.60
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Permanente Medical Group IncWalnut Creek, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cynthia Lea Chen among 2,083 dermatology physician records in California

Cynthia Lea Chen, M.D. 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 2008, is newer than 55% of them.

  • NPI issued2008 · 55% of these records are older, 39% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2007 · median 2006 among the 1,450 with a school on file
  • Record last updated2022 · 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.

The 8 dermatology physician records with the nearest ZIP codes

  1. Timothy Berger, MDSan Francisco, CA 941151124079181
  2. Kerry Blacker, MDSan Francisco, CA 941151841378452
  3. Mary Connolly, MDSan Francisco, CA 941151942265772
  4. Quita Cruciger, M.D.San Francisco, CA 941151629161245
  5. Lindy Fox, MDSan Francisco, CA 941151790738953
  6. Anna Haemel, M.D.San Francisco, CA 941151962448522
  7. Frank Jonelis, MDSan Francisco, CA 941151245318849
  8. Mohammed Kashani-Sabet, M.D.San Francisco, CA 941151629026174

Common questions

What is Cynthia Lea Chen, M.D.'s NPI number?

Cynthia Lea Chen, M.D.'s National Provider Identifier (NPI) is 1043465545, issued on Nov 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Cynthia Lea Chen, M.D. located?

The NPPES record lists a practice address at 1701 Divisadero St, San Francisco, CA, 94115. Phone: (415) 353-7800. Providers update this record themselves, so call before visiting.

How can I verify Cynthia Lea Chen, M.D.'s license?

NPPES lists California license number A106034, 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 Cynthia Lea Chen, M.D. prescribe under Medicare Part D?

In 2024, Cynthia Lea Chen, M.D. had 517 Medicare Part D claims for 219 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

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.