Stanley Chang, M.D.
Gastroenterology Physician · Fresno, CA
Stanley Chang, M.D. is a gastroenterology physician with a practice address in Fresno, California, and NPI 1013936566, issued on Jul 18, 2006. Check the license (California G36222, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stanley Chang
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G36222 CA
Self-reported in NPPES; status is on the state search - Practice location
- 445 S Cedar Ave, Fresno, CA 93702
- Phone
- (559) 459-4346
- Enumerated
- Jul 18, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G362220 CA
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 445 S Cedar Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Feldman, M.D.Obstetrics & Gynecology Physician1962436303
- Chantal FletcherInternal Medicine Physician1831207976
- John Kirby, MDPhysical Medicine & Rehabilitation Physician1093734543
- Eric Kunkel, PSY.DCognitive & Behavioral Psychologist1891866992
- John MoserEmergency Medicine Physician1164539045
- Miriam Mott-Smith, FNPFamily Nurse Practitioner1215926241
Verify Stanley Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G36222Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average gastroenterology physician in 2024
28 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
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.
Stanley Chang among 2,140 gastroenterology physician records in California
Stanley Chang, M.D. is one of 2,140 gastroenterology 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2007 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Fresno → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Nasir Halim, M.D.Fresno, CA 937011619387537
- Muhammad Hammami, MDFresno, CA 937011891149571
- Kumar Mohan, MDFresno, CA 937011710991112
- Heng Nhoung, MDFresno, CA 937011568191476
- Rajarajeshwari RamachandranFresno, CA 937031750761342
- Maricela Rangel-Garcia, MDFresno, CA 937011548622731
- Bruce Sahba, M.D.Fresno, CA 937011134239957
- Saranya Sasidharan, M.D.Fresno, CA 937011780020123
Common questions
What is Stanley Chang, M.D.'s NPI number?
Stanley Chang, M.D.'s National Provider Identifier (NPI) is 1013936566, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stanley Chang, M.D. located?
The NPPES record lists a practice address at 445 S Cedar Ave, Fresno, CA, 93702. Phone: (559) 459-4346. Providers update this record themselves, so call before visiting.
How can I verify Stanley Chang, M.D.'s license?
NPPES lists California license number G36222, 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 Stanley Chang, M.D. prescribe under Medicare Part D?
In 2024, Stanley Chang, M.D. had 28 Medicare Part D claims; the average among gastroenterology physician prescribers was 811. 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.