Allan Berne Barza, M.D.
Psychiatry Physician · Walnut Creek, CA
Allan Berne Barza, M.D. is a psychiatry physician with a practice address in Walnut Creek, California, and NPI 1952475030, issued on Nov 20, 2006. Check the license (California G31399, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Allan Berne Barza
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G31399 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2021 Ygnacio Valley RD, Walnut Creek, CA 94598
- Phone
- (925) 937-1840
- Enumerated
- Nov 20, 2006
- Record last updated
- Jun 12, 2024
- Fax
- (925) 937-1035
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 2021 Ygnacio Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Allan Berne Barza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G31399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average psychiatry physician in 2024
170 Medicare Part D claims for 14 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Alprazolam21 claims
- Trazodone Hcl16 claims
- Bupropion Xl14 claims
- Diazepam12 claims
- Venlafaxine Hcl12 claims
- Zolpidem Tartrate12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Allan Berne Barza among 8,673 psychiatry physician records in California
Allan Berne Barza, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
67 psychiatry physician records list a practice address in Walnut Creek
They are 67 of the 6,170 NPPES records with a practice address in Walnut Creek, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Walnut Creek → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Paul Abrinko, MDWalnut Creek, CA 945981912081308
- Ileana Boitor, MDWalnut Creek, CA 945981245485242
- Robert Hepps, M.D.Walnut Creek, CA 945981457441545
- Bradley Johnson, M.D.Walnut Creek, CA 945981407023567
- Robert Picker, M.D.Walnut Creek, CA 945981275574691
- Raymond Ruzicano, M.D.Walnut Creek, CA 945981811062508
- Samee Shahzada, M.D.Walnut Creek, CA 945981831345784
- Richard Slawsky, M.D.Walnut Creek, CA 945981669528410
Common questions
What is Allan Berne Barza, M.D.'s NPI number?
Allan Berne Barza, M.D.'s National Provider Identifier (NPI) is 1952475030, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Allan Berne Barza, M.D. located?
The NPPES record lists a practice address at 2021 Ygnacio Valley RD, Walnut Creek, CA, 94598. Phone: (925) 937-1840. Providers update this record themselves, so call before visiting.
How can I verify Allan Berne Barza, M.D.'s license?
NPPES lists California license number G31399, 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.
How much does Allan Berne Barza, M.D. prescribe under Medicare Part D?
In 2024, Allan Berne Barza, M.D. had 170 Medicare Part D claims for 14 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
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.