NPPES file of Aug 9, 2026

Catherine Chen, MD

Dermatology Physician · San Diego, CA

Catherine Chen, MD is a dermatology physician with a practice address in San Diego, California, and NPI 1861653479, issued on Jun 17, 2008. Check the license (California A81072, 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
1861653479
Name
Catherine Chen
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
A81072 CA
Self-reported in NPPES; status is on the state search
Practice location
15004 Innovation Dr, San Diego, CA 92128
Phone
(858) 487-1800
Enumerated
Jun 17, 2008
Record last updated
Jul 19, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 15004 Innovation Dr

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

  1. Lisa Abresch, PAMedical Physician Assistant1114298130
  2. Tyler Adamson, DOSports Medicine (Family Medicine) Physician1295263002
  3. Lindsey Ashcraft, DPTPhysical Therapist1215569447
  4. Brynn AshleyPediatric Nurse Practitioner1154790970
  5. Humaira Ashraf, RD, CDCESRegistered Dietitian1508586108
  6. Rebecca Askew, PT, MPT, NCSPhysical Therapist1396376158

Verify Catherine 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 A81072
    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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97% fewer Medicare Part D claims than the average dermatology physician in 2024

23 Medicare Part D claims, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D.

  1. Catherine Chen23
  2. Specialty average797

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.

Catherine Chen among 2,083 dermatology physician records in California

Catherine Chen, MD 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 fileNo · 70% of these records are
  • Record last updated2019 · 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. Sucharita Boddu, M.D.San Diego, CA 921281679968705
  2. William Burrows, M.D.San Diego, CA 921281639199292
  3. David Chu, M.D.San Diego, CA 921281982765525
  4. Eric Gerstenfeld, M.D.San Diego, CA 921281114979754
  5. Shadi Khalil, MD, PHDSan Diego, CA 921281366901688
  6. Caroline Piggott, M.D.San Diego, CA 921281710180336
  7. Katherine Ozanich, M.D.San Diego, CA 921271598778516
  8. Anne Truitt, M.D.San Diego, CA 921271306096680

Common questions

What is Catherine Chen, MD's NPI number?

Catherine Chen, MD's National Provider Identifier (NPI) is 1861653479, issued on Jun 17, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Chen, MD located?

The NPPES record lists a practice address at 15004 Innovation Dr, San Diego, CA, 92128. Phone: (858) 487-1800. Providers update this record themselves, so call before visiting.

How can I verify Catherine Chen, MD's license?

NPPES lists California license number A81072, 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 Catherine Chen, MD prescribe under Medicare Part D?

In 2024, Catherine Chen, MD had 23 Medicare Part D claims; 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.