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Raymond C. Tan, MD A Professional Corporation

Radiation Oncology Physician in Merced, CA · enumerated 2007 · authorized official Raymond Tan, Ceo.

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

National Provider Identifier

1699896357

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Registry record

Entity type Organization (Type 2)
Legal business name Raymond C. Tan, MD A Professional Corporation
Practice address 3850 G St, Merced, CA, 95340
Phone (209) 386-6000
Fax (209) 386-6055
Enumeration date Apr 2, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License A73252 (CA) Primary

Authorized official

Name Raymond Tan
Title Ceo
Phone (209) 386-6000

Other identifiers

Identifier Type State Issuer
00A732520 Medicaid CA -

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.

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Frequently asked questions

Who is the authorized official for Raymond C. Tan, MD A Professional Corporation?
NPPES lists Raymond Tan (Ceo) as the authorized official for this organization.
What is the NPI number for Raymond C. Tan, MD A Professional Corporation?
The NPI for Raymond C. Tan, MD A Professional Corporation is 1699896357, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.