Brian Ash, M.D.
Anesthesiology Physician · Menlo Park, CA
Brian Ash, M.D. is an anesthesiology physician with a practice address in Menlo Park, California, and NPI 1962669531, issued on May 20, 2008. Check the license (California 103642, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Ash
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 103642 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1422 EL Camino Real, Menlo Park, CA 94025
- Phone
- (650) 903-9500
- Enumerated
- May 20, 2008
- Entity
- Type 1 · individual
Also registered at 1422 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nivedita Bhown, M.D.Anesthesiology Physician1154401792
- Mark Brown, M.D.Anesthesiology Physician1811067234
- Katarzyna Ciesielski, MDAnesthesiology Physician1033215587
- Martin Halum, MDAnesthesiology Physician1598096364
- Charles Kim, M.D.Anesthesiology Physician1790929602
- Alex Lee, M.D.Anesthesiology Physician1447324868
Verify Brian Ash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 103642Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
One hospital or facility affiliation
- EL Camino AnesthesiaLos Gatos, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
34 anesthesiology physician records list a Menlo Park practice address
They are 34 of the 1,265 NPPES records with a Menlo Park practice address, and 7,276 anesthesiology physician records in California.
All 34 in Menlo Park → All 7,276 in California → Every provider in Menlo Park →
Other anesthesiology physician records in California
- Alison A'Court, MDSan Diego, CA1912218199
- Peter Abaci, MDLos Gatos, CA1447200761
- Elma Abad-Pelsang, MDDel Mar, CA1689611923
- Rolando Abada, M.D.San Diego, CA1952319071
- Maher Abadir, MDTurlock, CA1669491718
- Jerry Abajian, M.D.Napa, CA1851336218
- Carolyn AbbasiLoma Linda, CA1811287311
- Christine Abboud, D.O.Walnut Creek, CA1174901508
- Steven Abboud, MDPalo Alto, CA1619364908
- Therese Abboud, M.D.Coronado, CA1003112913
Common questions
What is Brian Ash, M.D.'s NPI number?
Brian Ash, M.D.'s National Provider Identifier (NPI) is 1962669531, issued on May 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Brian Ash, M.D. located?
The NPPES record lists a practice address at 1422 EL Camino Real, Menlo Park, CA, 94025. Phone: (650) 903-9500. Providers update this record themselves, so call before visiting.
How can I verify Brian Ash, M.D.'s license?
NPPES lists California license number 103642, 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.