NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Thelma T Fernandez M D A Professional Corporation

Family Medicine Physician in Lancaster, CA · enumerated 2010 · authorized official Thelma Fernandez, Medical Doctor.

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

National Provider Identifier

1851614986

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Thelma T Fernandez M D A Professional Corporation
Parent organization Thelma T Fernandez M D
Practice address 1601 W Avenue J, Suite 101, Lancaster, CA, 93534
Fax (661) 948-0552
Enumeration date Mar 3, 2010
Last updated in NPPES Sep 7, 2010

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Thelma Fernandez
Title Medical Doctor

Other identifiers

Identifier Type State Issuer
A36169 Other CA MEDICARE
00A361690 Medicaid CA -
1861505158 Other CA MEDICARE NPI

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

Where is Thelma T Fernandez M D A Professional Corporation located?
The practice location on file with NPPES is in Lancaster, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-09-07. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-07.