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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN JAMES FROST MDPHD
NPI 1831171552
Radiology - Diagnostic Radiology in New Haven, CT

Active since November 17, 2005
800 HOWARD AVE, NEW HAVEN, CT 06519(203) 785-2140(203) 785-6414 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About John James Frost Mdphd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN JAMES FROST MDPHD (NPI 1831171552) is an individual diagnostic radiology provider in New Haven, Connecticut, licensed in Connecticut (042865) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1831171552
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameJOHN JAMES FROSTCredential: MDPHD
Location Address800 HOWARD AVENew Haven, CT 06519-1369
Mailing Address300 George St, 6th Floor Po Box 9805New Haven, CT 06536-0805 · (203) 785-7998 · Fax (203) 785-6414
Phone(203) 785-2140
Fax(203) 785-6414
Sole ProprietorNo
Enumeration DateNovember 17, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1831171552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in CT · 042865
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedNuclear MedicineTaxonomy 207U00000X · License 042865 (CT)
800 HOWARD AVE, New Haven, CT 06519
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. PAULA M. TORTORICI-SCHEFF FNP
Nurse Practitioner (Family)
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 688-4242
GERARD ANDREW BETRO MD
Surgery
800 HOWARD AVE, YALE PHYSICIANS BLDG
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2140
ALEXA BLOOD APRN
Nurse Practitioner
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2565
MICHAEL DIGIOVANNA MD
Internal Medicine (Medical Oncology)
800 HOWARD AVE, YALE PHYSICIANS BUILDING - 2ND FLOOR
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 688-4191
HELENA TERESA CHMIELOWICZ APRN
Clinical Nurse Specialist (Gerontology)
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2140
DR. MARC LEWIS ROSEN MD
Physical Medicine & Rehabilitation
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2579
MICHELE ANNE GOYETTE -EWING PHD
Psychologist (Clinical Child & Adolescent)
800 HOWARD AVE, YALE PHYSICIANS BLDG
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2140
UZMA USMAN MD
Psychiatry & Neurology (Neuromuscular Medicine)
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (999) 999-9999

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Frost's NPI number?

The NPI number for John Frost is 1831171552. It was assigned to this individual provider in the NPPES registry on November 17, 2005.

Where is John Frost located?

John Frost practices at 800 Howard Ave, New Haven, CT 06519. The listed phone number is (203) 785-2140.

What is John Frost's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

When was this NPI record last updated?

The NPPES record for John Frost was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.