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East Bay Gynecologic Oncology

Q: What type of organization is East Bay Gynecologic Oncology?

East Bay Gynecologic Oncology is registered in NPPES as a Gynecologic Oncology Physician (its primary provider taxonomy).

Gynecologic Oncology Physician in Orinda, CA · enumerated 2015 · authorized official Dimitry Lerner, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1003289919

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Registry record

Entity type Organization (Type 2)

Legal business name East Bay Gynecologic Oncology

Practice address 105 Monte Vista Rd, Orinda, CA, 94563

Phone (310) 926-2451

Enumeration date Nov 2, 2015

Last updated in NPPES Nov 2, 2015

Taxonomy & classification

207VX0201X Gynecologic Oncology Physician Allopathic & Osteopathic Physicians · License A92223 (CA) Primary

Authorized official

Name Dimitry Lerner

Title Owner

Phone (310) 926-2451

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is East Bay Gynecologic Oncology?

East Bay Gynecologic Oncology is registered in NPPES as a Gynecologic Oncology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-02.