Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alexander P. Hersel, M.D., Inc

Q: What type of organization is Alexander P. Hersel, M.D., Inc?

Alexander P. Hersel, M.D., Inc is registered in NPPES as a Pain Medicine (Anesthesiology) Physician (its primary provider taxonomy).

Pain Medicine (Anesthesiology) Physician in Thousand Oaks, CA · enumerated 2006 · authorized official Alexander Hersel, Owner.

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

National Provider Identifier

1063511475

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Registry record

Entity type Organization (Type 2)

Legal business name Alexander P. Hersel, M.D., Inc

Other name <Unavail>

Practice address 1120 Newbury Rd # 150, Thousand Oaks, CA, 91320

Phone (805) 557-0096

Fax (805) 557-7360

Enumeration date Sep 22, 2006

Last updated in NPPES Apr 9, 2019

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A79277 (CA) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License A79277 (CA) Primary

Authorized official

Name Alexander Hersel

Title Owner

Phone (805) 367-7522

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 type of organization is Alexander P. Hersel, M.D., Inc?

Alexander P. Hersel, M.D., Inc is registered in NPPES as a Pain Medicine (Anesthesiology) Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-09.