Ira Carl Chan, M.D.
Obstetrics & Gynecology Physician · Sunnyvale, CA
Ira Carl Chan, M.D. is an obstetrics & gynecology physician with a practice address in Sunnyvale, California, and NPI 1972618866, issued on Aug 20, 2006. Check the license (California G133888, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ira Carl Chan
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- G133888 CA
79490 MA
Self-reported in NPPES; status is on the state search - Practice location
- 301 Old San Francisco RD, Sunnyvale, CA 94086
- Phone
- (408) 730-4240
- Enumerated
- Aug 20, 2006
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 110055650 MA
- Medicare enrollment
- Enrolled (PECOS I20160826000298); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 1990
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 301 Old San Francisco RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Wafa Aljuneidi, MSN, APRN-NP, FNP-CNurse Practitioner1083583991
- Aisha AminInternal Medicine Physician1013440981
- Joyce Ang, MDPediatrics Physician1346634698
- Lulua Bahrainwala, MD, MSFamily Medicine Physician1568949709
Verify Ira Carl Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G133888Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSunnyvale, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ira Carl Chan among 5,088 obstetrics & gynecology physician records in California
Ira Carl Chan, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1990 · median 2004 among the 2,700 with a school on file
- Record last updated2018 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Sunnyvale → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Nirmala Bhat, MDSunnyvale, CA 940861528031051
- Erin Chong, M.D.Sunnyvale, CA 940861407111271
- Sabiya Raja, MD, MPHSunnyvale, CA 940861992098701
- Wayneab Truneh, MDSunnyvale, CA 940861447367792
- Hung Ecklund, MDSunnyvale, CA 940871689722621
- Kenneth Grolle, MDSunnyvale, CA 940871053416875
- Cheryl Vu, MDSunnyvale, CA 940871093823734
- Karen White, MDSunnyvale, CA 940871124244223
Common questions
What is Ira Carl Chan, M.D.'s NPI number?
Ira Carl Chan, M.D.'s National Provider Identifier (NPI) is 1972618866, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ira Carl Chan, M.D. located?
The NPPES record lists a practice address at 301 Old San Francisco RD, Sunnyvale, CA, 94086. Phone: (408) 730-4240. Providers update this record themselves, so call before visiting.
How can I verify Ira Carl Chan, M.D.'s license?
NPPES lists California license number G133888, 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. 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.