Ann Margaret Petru, M.D.
Pediatric Infectious Diseases Physician · Oakland, CA
Ann Margaret Petru, M.D. is a pediatric infectious diseases physician with a practice address in Oakland, California, and NPI 1568490878, issued on Jun 28, 2006. Check the license (California G40627, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ann Margaret Petru
- Credential
- M.D.
- Primary taxonomy
- Pediatric Infectious Diseases Physician 2080P0208X
- License number
- G40627 CA
Self-reported in NPPES; status is on the state search - Practice location
- 747 Fifty-Second Street, Oakland, CA 94609
- Phone
- (510) 428-3337
- Enumerated
- Jun 28, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (510) 601-3957
- Medicaid ID
- 00G406270 CA
- Medicare enrollment
- Enrolled (PECOS I20091130000286); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1978
- Entity
- Type 1 · individual
8 nearest pediatric infectious diseases physician records → All 161 in California → Look up another NPI →
Verify Ann Margaret Petru in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G40627Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Ucsf Medical Group Business ServicesSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Margaret Petru among 161 pediatric infectious diseases physician records in California
Ann Margaret Petru, M.D. is one of 161 pediatric infectious diseases physician records with a practice address in California. 48% 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, 57% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileYes · 30% of these records are
- Graduated1978 · median 2002 among the 49 with a school on file
- Record last updated2023 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0208X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Infectious Diseases Physician providers in California
There are 161 pediatric infectious diseases physician records in California.
All 161 in California → Every provider in Oakland → Pediatric Infectious Diseases Physician nationwide →
The 8 pediatric infectious diseases physician records with the nearest ZIP codes
- Dan Granoff, M.D.Oakland, CA 946091609131697
- Charlotte Hsieh, M.D.Oakland, CA 946091093745630
- Brian Lee, M.D.Oakland, CA 946091417987033
- Prachi Singh, D.O.Oakland, CA 946091720346323
- Anh Vo, MDOakland, CA 946091912536608
- Francis Crosson, M.D.Oakland, CA 946121629205679
- Randy Bergen, MDWalnut Creek, CA 945961316025497
- Arnd Herz, M.D.Hayward, CA 945451790835510
Common questions
What is Ann Margaret Petru, M.D.'s NPI number?
Ann Margaret Petru, M.D.'s National Provider Identifier (NPI) is 1568490878, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ann Margaret Petru, M.D. located?
The NPPES record lists a practice address at 747 Fifty-Second Street, Oakland, CA, 94609. Phone: (510) 428-3337. Providers update this record themselves, so call before visiting.
How can I verify Ann Margaret Petru, M.D.'s license?
NPPES lists California license number G40627, 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.