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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Marc Dembner, MD

Neurological Surgery Physician in Orange, CA · enumerated 2006.

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

National Provider Identifier

1356423271

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Registry record

Entity type Individual (Type 1)
Name Jeffrey Marc Dembner
Credential MD
Sex Male
Practice address 2617 E Chapman Ave, Suite 201, Orange, CA, 92869
Enumeration date Oct 19, 2006
Last updated in NPPES Dec 20, 2021

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License MD-49282 (IA) Secondary
207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License A74580 (CA) Secondary
207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 304169 (NY) Secondary
207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License MD198315 (OR) 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

Is NPI 1356423271 active?
Yes, as of the latest NPPES snapshot, NPI 1356423271 is active (record last updated 2021-12-20).
How do I verify Jeffrey Dembner's NPI record?
Cross-check NPI 1356423271 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 2021-12-20.