Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dorathy Twitchell, PA-C

Physician Assistant in Thousand Oaks, CA · enumerated 2026.

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

National Provider Identifier

1417806514

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Registry record

Entity type Individual (Type 1)

Name Dorathy Twitchell

Credential PA-C

Sex X

Practice address 1001 Newbury Rd, Thousand Oaks, CA, 91320

Phone (805) 379-2322

Enumeration date Jan 23, 2026

Last updated in NPPES Jun 8, 2026

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Primary

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

How do I verify Dorathy Twitchell's NPI record?

Cross-check NPI 1417806514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1417806514 active?

Yes, as of the latest NPPES snapshot, NPI 1417806514 is active (record last updated 2026-06-08).

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Erik Spayde Orthopaedic Surgery Physician · Thousand Oaks, CA NPI 1609818822 Erik C. Spayde, M.D., Inc. Orthopaedic Surgery Physician · Thousand Oaks, CA NPI 1790717965 California Back Specialists Medical Group, Inc Neurological Surgery Physician · Newbury Park, CA NPI 1861502205 Hillcrest Mri Medical Group Body Imaging Physician · Newbury Park, CA NPI 1801906268 California Spine Institute Medical Center, Inc. Physical Medicine & Rehabilitation Physician · Thousand Oaks, CA NPI 1952411027 California Minimally Invasive Surgical Center, Inc. Ambulatory Surgical Clinic/Center · Newbury Park, CA NPI 1619087772 Conejo Neurological Medical Group, Inc. Neurological Surgery Physician · Thousand Oaks, CA NPI 1013010578 Thousand Oaks Spine Medical Group, Inc. Neurological Surgery Physician · Newbury Park, CA NPI 1699862227

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-08.