Donald Adams Barr, M.D., PH.D., M.S.
Emergency Medicine Physician · Palo Alto, CA
Donald Adams Barr, M.D., PH.D., M.S. is an emergency medicine physician with a practice address in Palo Alto, California, and NPI 1912155086, issued on Sep 3, 2008. Check the license (California G27168, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Donald Adams Barr
- Credential
- M.D., PH.D., M.S.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G27168 CA
Self-reported in NPPES; status is on the state search - Practice location
- 948 Ramona St, Palo Alto, CA 94301
- Phone
- (650) 723-2884
- Enumerated
- Sep 3, 2008
- Record last updated
- Sep 3, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Donald Adams Barr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G27168Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Donald Adams Barr among 7,751 emergency medicine physician records in California
Donald Adams Barr, M.D., PH.D., M.S. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2008 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,751 in California → Every provider in Palo Alto → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Midori Aogaichi, MDPalo Alto, CA 943011639580442
- Jennifer Bauer, NPPalo Alto, CA 943011821293713
- Carlos Cruz, M.D.Palo Alto, CA 943011881911402
- Marian DavidsonPalo Alto, CA 943011780867234
- Richard Deslauriers, MDPalo Alto, CA 943011629170501
- Leigh Durlacher, MDPalo Alto, CA 943011134143779
- Laura Eaton, MDPalo Alto, CA 943011285662775
- David Galbraith, MDPalo Alto, CA 943011801966197
Common questions
What is Donald Adams Barr, M.D., PH.D., M.S.'s NPI number?
Donald Adams Barr, M.D., PH.D., M.S.'s National Provider Identifier (NPI) is 1912155086, issued on Sep 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Donald Adams Barr, M.D., PH.D., M.S. located?
The NPPES record lists a practice address at 948 Ramona St, Palo Alto, CA, 94301. Phone: (650) 723-2884. Providers update this record themselves, so call before visiting.
How can I verify Donald Adams Barr, M.D., PH.D., M.S.'s license?
NPPES lists California license number G27168, 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.