Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

East Bay Medical Oncology-Hematology Associates, Inc.

Hematology & Oncology Physician in Antioch, CA · enumerated 2005 · authorized official John Ganey, Partner.

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

National Provider Identifier

1932107331

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name East Bay Medical Oncology-Hematology Associates, Inc.

Other name <Unavail>

Practice address 4721 Dallas Ranch Rd, Antioch, CA, 94531

Phone (925) 778-0679

Fax (925) 778-3567

Enumeration date Jul 8, 2005

Last updated in NPPES Dec 14, 2010

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License A36088 (CA) Primary

Authorized official

Name John Ganey

Title Partner

Phone (925) 687-2570

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 Medical Oncology-Hematology Associates, Inc.?

East Bay Medical Oncology-Hematology Associates, Inc. is registered in NPPES as a Hematology & 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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-14.