Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Marvin I Retsky, MD and Dennis Kasimian, MD A Professional Corporation

Anatomic Pathology & Clinical Pathology Physician in Van Nuys, CA · enumerated 2006 · authorized official Dennis Kasimian, President.

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

National Provider Identifier

1053370627

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Registry record

Entity type Organization (Type 2)

Legal business name Marvin I Retsky, MD and Dennis Kasimian, MD A Professional Corporation

Practice address 15107 Vanowen St, Van Nuys, CA, 91405

Phone (818) 905-2961

Enumeration date Mar 21, 2006

Last updated in NPPES Aug 23, 2017

Taxonomy & classification

207ZC0500X Cytopathology Physician Allopathic & Osteopathic Physicians Secondary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Dennis Kasimian

Title President

Phone (818) 902-2961

Other identifiers

Identifier	Type	State	Issuer
GR0101800	Medicaid	CA	-
ZZZ16215Z	Other	-	BLUE SHIELD GROUP ID

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

Who is the authorized official for Marvin I Retsky, MD and Dennis Kasimian, MD A Professional Corporation?

NPPES lists Dennis Kasimian (President) as the authorized official for this organization.

What is the NPI number for Marvin I Retsky, MD and Dennis Kasimian, MD A Professional Corporation?

The NPI for Marvin I Retsky, MD and Dennis Kasimian, MD A Professional Corporation is 1053370627, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-08-23.