Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Oat Sinchai, M.D., A Professional Corporation

Ophthalmology Physician in Orange, CA · enumerated 2012 · authorized official Prit Sinchai, President.

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

National Provider Identifier

1972849768

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Registry record

Entity type Organization (Type 2)

Legal business name Oat Sinchai, M.D., A Professional Corporation

Practice address 439 E Chapman Ave, Orange, CA, 92866

Phone (714) 769-6386

Fax (714) 769-6387

Enumeration date Dec 24, 2012

Last updated in NPPES Sep 24, 2018

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License A102404 (CA) Primary

Authorized official

Name Prit Sinchai

Title President

Phone (714) 769-6386

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 is the NPI number for Oat Sinchai, M.D., A Professional Corporation?

The NPI for Oat Sinchai, M.D., A Professional Corporation is 1972849768, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Oat Sinchai, M.D., A Professional Corporation?

NPPES lists Prit Sinchai (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-24.