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Mr. Donald Stephen Litvak, M.D.

Specialist in Tarzana, CA · enumerated 2006 · practices at Quantum Medical Radiology of California, PC.

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

National Provider Identifier

1790704344

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Registry record

Entity type Individual (Type 1)
Name Mr. Donald Stephen Litvak
Credential M.D.
Sex Male
Practice address 3808 Winford Dr, Tarzana, CA, 91356
Phone (818) 343-9802
Fax (818) 343-9804
Enumeration date Jul 18, 2006
Last updated in NPPES May 8, 2015

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A23815 (CA) Primary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License A23815 (CA) Secondary
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.

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Frequently asked questions

What specialty is Donald Litvak?
Donald Litvak is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-08.