Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Allison R. Yim, M.D., Inc.

Q: What type of organization is Allison R. Yim, M.D., Inc.?

Allison R. Yim, M.D., Inc. is registered in NPPES as a Pediatrics Physician (its primary provider taxonomy).

Pediatrics Physician in Pasadena, CA · enumerated 2009 · authorized official Allison Yim, Physician.

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

National Provider Identifier

1760622997

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Registry record

Entity type Organization (Type 2)

Legal business name Allison R. Yim, M.D., Inc.

Practice address 504 S Sierra Madre Blvd, Pasadena, CA, 91107

Phone (626) 795-8811

Fax (626) 795-0953

Enumeration date Feb 27, 2009

Last updated in NPPES Feb 27, 2009

Taxonomy & classification

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License G080624 (CA) Primary

Authorized official

Name Allison Yim

Title Physician

Phone (626) 795-8811

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 Allison R. Yim, M.D., Inc.?

Allison R. Yim, M.D., Inc. is registered in NPPES as a Pediatrics 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-27.