Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Ovsiowitz, MD

Gastroenterology Physician in Los Angeles, CA · enumerated 2007 · practices at Ucla Pediatrics.

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

National Provider Identifier

1881712370

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Registry record

Entity type Individual (Type 1)

Name Mark Ovsiowitz

Credential MD

Sex Male

Practice address 200 Med Plz, Suite 365, Los Angeles, CA, 90095

Phone (310) 825-9711

Enumeration date Mar 26, 2007

Last updated in NPPES Feb 15, 2013

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License A94620 (CA) Primary

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

How do I verify Mark Ovsiowitz's NPI record?

Cross-check NPI 1881712370 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881712370 active?

Yes, as of the latest NPPES snapshot, NPI 1881712370 is active (record last updated 2013-02-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-15.