NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Karen L Fields MD Inc

Internal Medicine Physician in Camarillo, CA · enumerated 2023 · authorized official Karen Fields, Ceo.

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

National Provider Identifier

1144009846

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Karen L Fields MD Inc
Practice address 1601 Carmen Dr Ste 106, Camarillo, CA, 93010
Phone (818) 788-3308
Fax (805) 389-8188
Enumeration date Sep 22, 2023
Last updated in NPPES Sep 22, 2023

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Karen Fields
Title Ceo
Phone (818) 788-3308

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 Karen L Fields MD Inc?
The NPI for Karen L Fields MD Inc is 1144009846, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Karen L Fields MD Inc?
NPPES lists Karen Fields (Ceo) 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 2023-09-22.