Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph Harry Gerlach, MD

Psychiatry Physician in Sylmar, CA · enumerated 2024.

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

National Provider Identifier

1881445781

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Registry record

Entity type Individual (Type 1)

Name Joseph Harry Gerlach

Credential MD

Sex Male

Practice address 14445 Olive View Dr, Sylmar, CA, 91342

Phone (747) 210-5656

Enumeration date Mar 28, 2024

Last updated in NPPES Nov 5, 2025

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License A205350 (CA) Secondary

2084P0805X Geriatric Psychiatry Physician Allopathic & Osteopathic Physicians · License A205350 (CA) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A205350 (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 1881445781 active?

Yes, as of the latest NPPES snapshot, NPI 1881445781 is active (record last updated 2025-11-05).

How do I verify Joseph Gerlach's NPI record?

Cross-check NPI 1881445781 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 2025-11-05.