Richard D. Ash, MD
Pediatrics Physician · San Ramon, CA
Richard D. Ash, MD is a pediatrics physician with a practice address in San Ramon, California, and NPI 1366445298, issued on May 24, 2005. Check the license (California G38028, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Richard D. Ash
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License numbers
- G38028 CA
MD023533E PA
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
- May 24, 2005
- Record last updated
- Oct 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 0007225700003 PA
- Entity
- Type 1 · individual
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
- 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
- Frank Hsueh, M.D.Internal Medicine Physician1144224742
Verify Richard D. Ash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G38028Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 22 in San Ramon → All 9,272 in California → Every provider in San Ramon →
Other pediatrics physician records in California
- Subha Aahlad, M.D.Foster City, CA1780610253
- Rebecca Aaronson, MDPanorama City, CA1487746814
- Gregorio Abad-Santos, M.D.Long Beach, CA1255451894
- Michelle Abajian, MDLa Canada, CA1619176757
- Joseph Abapo, MDRiverside, CA1841348786
- Zvart Abaryan, MDLos Angeles, CA1154940849
- Lauren Abbas, MDLos Angeles, CA1982163796
- Attia Abbasi, M.D.Auburn, CA1922027127
- Denise AbbasiParadise, CA1770062341
- Alexandra Abbott, MDPalo Alto, CA1760018675
Common questions
What is Richard D. Ash, MD's NPI number?
Richard D. Ash, MD's National Provider Identifier (NPI) is 1366445298, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Richard D. Ash, 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 Richard D. Ash, MD's license?
NPPES lists California license number G38028, 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.