NPPES file of Aug 9, 2026

Tsuling Chang, M.D.

Dermatology Physician · San Ramon, CA

Tsuling Chang, M.D. is a dermatology physician with a practice address in San Ramon, California, and NPI 1154495240, issued on Nov 20, 2006. Check the license (California G67894, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1154495240
Name
Tsuling Chang
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
G67894 CA
Self-reported in NPPES; status is on the state search
Practice location
5601 Norris Canyon RD, San Ramon, CA 94583
Phone
(925) 866-6680
Enumerated
Nov 20, 2006
Record last updated
Jan 16, 2009 (not updated in 17 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 5601 Norris Canyon RD

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

  1. Lauren Alexander, RN, MSN, ANP-BCGeneral Practice Registered Nurse1689866998
  2. Richard Ash, MDPediatrics Physician1366445298
  3. Sandy Chhiv, FNPFamily Nurse Practitioner1487102794
  4. Bradford Flagg, M.D.Family Medicine Physician1346323086
  5. Jayaram Hariharan, M.D.Family Medicine Physician1790004638
  6. Frank Hsueh, M.D.Internal Medicine Physician1144224742

Verify Tsuling Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G67894
    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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Dermatology Physician providers in California

There are 2,083 dermatology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other dermatology physician records in California

  1. Sam Abaza, M.D.Diamond Bar, CA1831148501
  2. Farah Abdulla, MDDuarte, CA1093934390
  3. Robert Abergel, M.D.Santa Monica, CA1841565843
  4. Karen Abisogun, MDLos Angeles, CA1124474515
  5. Glynis Ablon, M.D.Manhattan Beach, CA1144292889
  6. Arthur Abrams, MDMountain View, CA1518093178
  7. Payam Abrishami, MDAgoura Hills, CA1447288147
  8. Aseel Abu-NasserRedding, CA1609641711
  9. Rachel Abuav, M.D.Beverly Hills, CA1356481733
  10. Boya Abudu, MD, MPHSacramento, CA1336608637

Common questions

What is Tsuling Chang, M.D.'s NPI number?

Tsuling Chang, M.D.'s National Provider Identifier (NPI) is 1154495240, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tsuling Chang, M.D. located?

The NPPES record lists a practice address at 5601 Norris Canyon RD, San Ramon, CA, 94583. Phone: (925) 866-6680. Providers update this record themselves, so call before visiting.

How can I verify Tsuling Chang, M.D.'s license?

NPPES lists California license number G67894, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.