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Mark A. Demar, M.D.

Surgery Physician in Carson City, NV · enumerated 2006.

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

National Provider Identifier

1821050253

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Registry record

Entity type Individual (Type 1)
Name Mark A. Demar
Credential M.D.
Sex Male
Practice address 1761 College Pkwy Ste 112, Carson City, NV, 89706
Phone (775) 684-9009
Enumeration date Apr 3, 2006
Last updated in NPPES May 9, 2022

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 12637 (NV) 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
636128 Medicaid AZ -

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 1821050253 active?
Yes, as of the latest NPPES snapshot, NPI 1821050253 is active (record last updated 2022-05-09).
How do I verify Mark Demar's NPI record?
Cross-check NPI 1821050253 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 2022-05-09.