Cynthia Amy Quan, MD
Pediatrics Physician · San Ramon, CA
Cynthia Amy Quan, MD is a pediatrics physician with a practice address in San Ramon, California, and NPI 1659330249, issued on Mar 21, 2006. Check the license (California A62624, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cynthia Amy Quan
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A62624 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5601 Norris Canyon RD, San Ramon, CA 94583
- Phone
- (925) 277-7550
- Enumerated
- Mar 21, 2006
- Record last updated
- Oct 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (925) 277-7555
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 5601 Norris Canyon RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Alexander, RN, MSN, ANP-BCGeneral Practice Registered Nurse1689866998
- Richard Ash, MDPediatrics Physician1366445298
- Tsuling Chang, M.D.Dermatology Physician1154495240
- Sandy Chhiv, FNPFamily Nurse Practitioner1487102794
- Bradford Flagg, M.D.Family Medicine Physician1346323086
- Jayaram Hariharan, M.D.Family Medicine Physician1790004638
Verify Cynthia Amy Quan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A62624Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $111.11
1 payment: food and beverage; the largest payer was Acera Surgical, Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Cynthia Amy Quan among 9,272 pediatrics physician records in California
Cynthia Amy Quan, MD is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2012 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 pediatrics physician records list a practice address in San Ramon
They are 22 of the 2,281 NPPES records with a practice address in San Ramon, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in San Ramon → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Richard Ash, MDSan Ramon, CA 945831366445298
- Cynthia Hann, MDSan Ramon, CA 945831750372389
- Colleen Hogan, MDSan Ramon, CA 945831992795124
- Toril Jelter, MDSan Ramon, CA 945831447219902
- Erin Lee, M.D.San Ramon, CA 945831316979602
- Thomas Long, MDSan Ramon, CA 945831801887930
- Allen Obrinsky, MDSan Ramon, CA 945831831180132
- Tapashi Roy, M.D.,MRCP,FAAPSan Ramon, CA 945831265401178
Common questions
What is Cynthia Amy Quan, MD's NPI number?
Cynthia Amy Quan, MD's National Provider Identifier (NPI) is 1659330249, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Amy Quan, MD located?
The NPPES record lists a practice address at 5601 Norris Canyon RD, San Ramon, CA, 94583. Phone: (925) 277-7550. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Amy Quan, MD's license?
NPPES lists California license number A62624, 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.