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GERALD IRWIN
NPI 1184561458
Internal Medicine - Gastroenterology in Phoenix, AZ

Active since May 04, 2026
4150 N 108TH AVE STE 142, PHOENIX, AZ 85037(651) 318-2025 Get Directions Write a Review

NPPES record last updated: May 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Gerald Irwin NPPES

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

GERALD IRWIN (NPI 1184561458) is an individual gastroenterology provider in Phoenix, Arizona, licensed in Arizona (765443) and active in the NPI registry since May 2026.

NPPES Registry Identity

NPI1184561458
Entity TypeIndividual
Primary Taxonomy207RG0100X
Provider Legal NameGERALD IRWIN
Location Address4150 N 108TH AVE STE 142Phoenix, AZ 85037-5467
Mailing Address4150 N 108th Ave Ste 142Phoenix, AZ 85037-5467
Phone(651) 318-2025
Sole ProprietorYes
Enumeration DateMay 4, 2026
NPPES CertifiedMay 4, 2026
✔ NPI 1184561458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in AZ · 765443
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
4150 N 108TH AVE STE 142, Phoenix, AZ 85037
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 4

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

HEALTHFIRST MEDICAL GROUP PC
Internal Medicine
4150 N 108TH AVE STE 142
PHOENIX, AZ 85037
Maricopa County (623) 242-9259
HEALTHFIRST MANAGEMENT GROUP, LLC
Internal Medicine
4150 N 108TH AVE STE 142
PHOENIX, AZ 85037
Maricopa County (623) 242-9259
JENNIFER ROSS COMPTIS MD
Internal Medicine
4150 N 108TH AVE STE 142
PHOENIX, AZ 85037
Maricopa County (623) 322-1145
AZ MEDICAL GROUP LLC
Internal Medicine (Gastroenterology)
4150 N 108TH AVE STE 142
PHOENIX, AZ 85037
Maricopa County (651) 318-2025

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 Gerald Irwin's NPI number?

The NPI number for Gerald Irwin is 1184561458. It was assigned to this individual provider in the NPPES registry on May 4, 2026.

Where is Gerald Irwin located?

Gerald Irwin practices at 4150 N 108th Ave Ste 142, Phoenix, AZ 85037. The listed phone number is (651) 318-2025.

What is Gerald Irwin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Gerald Irwin was last updated on May 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.