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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David George Rorison, M.D.

Emergency Medicine Physician in Pasadena, MD · enumerated 2006.

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

National Provider Identifier

1083650253

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Registry record

Entity type Individual (Type 1)
Name David George Rorison
Credential M.D.
Sex Male
Practice address 8105 Ritchie Hwy, Pasadena, MD, 21122
Enumeration date Jun 22, 2006
Last updated in NPPES Aug 3, 2021

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License D0028260 (MD) 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
351011500 Medicaid MD -

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 1083650253 active?
Yes, as of the latest NPPES snapshot, NPI 1083650253 is active (record last updated 2021-08-03).
How do I verify David Rorison's NPI record?
Cross-check NPI 1083650253 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 2021-08-03.