NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory A Stainer, M.D.

Ophthalmologic Surgery Clinic/Center in Bakersfield, CA · enumerated 2025 · authorized official Gregory Stainer, Owner.

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

National Provider Identifier

1942182522

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Gregory A Stainer, M.D.
Practice address 4649 Planz Rd, Bakersfield, CA, 93309
Phone (661) 833-4040
Fax (661) 833-6721
Enumeration date Jul 23, 2025
Last updated in NPPES Jul 23, 2025

Taxonomy & classification

261QS0132X Ophthalmologic Surgery Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Gregory Stainer
Title Owner
Phone (661) 717-0237

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 Gregory A Stainer, M.D.?
The NPI for Gregory A Stainer, M.D. is 1942182522, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Gregory A Stainer, M.D.?
NPPES lists Gregory Stainer (Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-23.