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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Nachazel, M.D.

Anatomic Pathology & Clinical Pathology Physician in Los Angeles, CA · enumerated 2005.

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

National Provider Identifier

1821075367

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Registry record

Entity type Individual (Type 1)
Name Dr. John Nachazel
Credential M.D.
Sex Male
Practice address 1401 S Grand Ave, Los Angeles, CA, 90015
Phone (213) 742-5793
Fax (213) 742-6373
Enumeration date Dec 27, 2005
Last updated in NPPES Jun 3, 2014

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License G10944 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
00G109440 Medicaid CA -

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

Is NPI 1821075367 active?
Yes, as of the latest NPPES snapshot, NPI 1821075367 is active (record last updated 2014-06-03).
How do I verify John Nachazel's NPI record?
Cross-check NPI 1821075367 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 2014-06-03.