NPPES file of Aug 9, 2026

Julia Jean Bley, MD

Obstetrics & Gynecology Physician · Oakland, CA

Julia Jean Bley, MD is an obstetrics & gynecology physician with a practice address in Oakland, California, and NPI 1831357177, issued on May 22, 2008. Check the license (California A105553, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831357177
Name
Julia Jean Bley
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A105553 CA
Self-reported in NPPES; status is on the state search
Practice location
3451 E 12TH St, Oakland, CA 94601
Phone
(510) 535-3317
Enumerated
May 22, 2008
Record last updated
Aug 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(510) 535-4248
Medicare enrollment
Enrolled (PECOS I20190213001772); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3451 E 12TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Patricia ArteagaRegistered Nurse1619323870
  2. Melissa Ayres, MPH, RDNRegistered Dietitian1144067067
  3. Lidia Barajas Gonzalez, RNRegistered Nurse1780130450
  4. Paul Bayard, MDFamily Medicine Physician1922101237
  5. Shelli Bein, MDPediatrics Physician1982836078
  6. Samuel Bosch, MD, MPHFamily Medicine Physician1598440091

Verify Julia Jean Bley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A105553
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationBerkeley, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Julia Jean Bley among 5,088 obstetrics & gynecology physician records in California

Julia Jean Bley, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.

  • NPI issued2008 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2007 · median 2004 among the 2,700 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Hilary Eggers, MDOakland, CA 946011770089591
  2. Sara Johnson, M.D.Oakland, CA 946011811125016
  3. Thuy Le, MDOakland, CA 946011831551910
  4. Stacy Paar, MDOakland, CA 946011871086017
  5. Elena Siani, MDOakland, CA 946011598299299
  6. Susan Sykes, MDOakland, CA 946011326182957
  7. Karbo Tam, M.D.Oakland, CA 946011659553410
  8. Samantha Varner, MDOakland, CA 946011982059077

Common questions

What is Julia Jean Bley, MD's NPI number?

Julia Jean Bley, MD's National Provider Identifier (NPI) is 1831357177, issued on May 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Julia Jean Bley, MD located?

The NPPES record lists a practice address at 3451 E 12TH St, Oakland, CA, 94601. Phone: (510) 535-3317. Providers update this record themselves, so call before visiting.

How can I verify Julia Jean Bley, MD's license?

NPPES lists California license number A105553, 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.