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Jefferson University Physicians

Allergy & Immunology Physician in Philadelphia, PA · enumerated 2019 · authorized official Hristos Ristas, Vp of Contracting.

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

National Provider Identifier

1952860975

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Registry record

Entity type Organization (Type 2)
Legal business name Jefferson University Physicians
Other name <Unavail>
Parent organization Jefferson University Physicians
Practice address 1015 Chestnut St Ste 1300, Philadelphia, PA, 19107
Phone (215) 955-7410
Fax (215) 923-8230
Enumeration date Mar 19, 2019
Last updated in NPPES Oct 14, 2022

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Hristos Ristas
Title Vp of Contracting
Phone (215) 955-9298

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

Who is the authorized official for Jefferson University Physicians?
NPPES lists Hristos Ristas (Vp of Contracting) as the authorized official for this organization.
What is the NPI number for Jefferson University Physicians?
The NPI for Jefferson University Physicians is 1952860975, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-14.