Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J Herhusky, MD

Anesthesiology Physician in Monterey, CA · enumerated 2006 · practices at Carmel Healthcare Anesthesia Medical Providers Inc.

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

National Provider Identifier

1366521361

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Registry record

Entity type Individual (Type 1)

Name Michael J Herhusky

Credential MD

Sex Male

Practice address 23625 Holman Highway, Monterey, CA, 93940

Phone (831) 624-5311

Enumeration date Nov 2, 2006

Last updated in NPPES Jan 25, 2012

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License G62902 (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
00G629020	Other	CA	BLUE SHIELD OF CA
00G629020	Medicaid	CA	-
050043800	Other	CA	RAILROAD MEDICARE

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 1366521361 active?

Yes, as of the latest NPPES snapshot, NPI 1366521361 is active (record last updated 2012-01-25).

How do I verify Michael Herhusky's NPI record?

Cross-check NPI 1366521361 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 2012-01-25.