Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Irving Klasky, M.D.

Gastroenterology Physician in Tarzana, CA · enumerated 2006.

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

National Provider Identifier

1184681546

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Registry record

Entity type Individual (Type 1)

Name Irving Klasky

Credential M.D.

Sex Male

Practice address 18425 Burbank Blvd, Suite 500, Tarzana, CA, 91356

Phone (818) 708-6000

Fax (818) 708-6009

Enumeration date Apr 28, 2006

Last updated in NPPES Oct 10, 2012

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License A21160 (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
ZZZ70039Z	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Irving Klasky?

The National Provider Identifier (NPI) for Irving Klasky is 1184681546, a Type 1 (individual) record in the CMS NPPES registry.

Where does Irving Klasky practice?

The practice location on file with NPPES is in Tarzana, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Maurice Gourdji MD Inc & Lucien R Jacobs MD Inc Gastroenterology Physician · Tarzana, CA NPI 1184600074 Joel Sach Internal Medicine Physician · Tarzana, CA NPI 1871571802 Joel A. Sach, M.D., Inc. Gastroenterology Physician · Tarzana, CA NPI 1043298078 Valley Endoscopy Center Lp Ambulatory Surgical Clinic/Center · Tarzana, CA NPI 1366422479 Sheldon Getzug Gastroenterology Physician · Tarzana, CA NPI 1750348785 Jeffrey Birns Pediatric Otolaryngology Physician · Tarzana, CA NPI 1043278062 Jim Amerian Gastroenterology Physician · Tarzana, CA NPI 1366400194 Cesar Chavarria Pediatric Critical Care Medicine Physician · Tarzana, CA NPI 1609803212

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-10.