Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alan C Schlaerth, M.D.

Gynecologic Oncology Physician in Arcadia, CA · enumerated 2006.

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

National Provider Identifier

1043239049

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Registry record

Entity type Individual (Type 1)

Name Dr. Alan C Schlaerth

Credential M.D.

Sex Male

Practice address 300 W Huntington Dr, Pacific Gynecologic Specialists, Arcadia, CA, 91007

Phone (626) 898-8198

Fax (626) 898-8231

Enumeration date Jul 19, 2006

Last updated in NPPES Jun 11, 2014

Taxonomy & licenses

207VX0201X Gynecologic Oncology Physician Allopathic & Osteopathic Physicians · License A72436 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Is NPI 1043239049 active?

Yes, as of the latest NPPES snapshot, NPI 1043239049 is active (record last updated 2014-06-11).

How do I verify Alan Schlaerth's NPI record?

Cross-check NPI 1043239049 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-11.