1. Home
  2. Directory
  3. Arizona
  4. Phoenix
  5. General Practice
  6. NPI Profile

DR. GREGORY SCOTT JOHNSTON M.D.
NPI 1447371497
General Practice in Phoenix, AZ

Active since April 03, 2007
515 N 18TH ST, PHOENIX, AZ 85006(602) 470-0021 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gregory Scott Johnston M.d. NPPES

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

DR. GREGORY SCOTT JOHNSTON M.D. (NPI 1447371497) is an individual general practice provider in Phoenix, Arizona, licensed in Arizona (18453) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1447371497
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameDR. GREGORY SCOTT JOHNSTONCredential: M.D.
Location Address515 N 18TH STPhoenix, AZ 85006-3726
Mailing Address515 N 18th StPhoenix, AZ 85006-3726 · (602) 470-0021
Phone(602) 470-0021
Sole ProprietorYes
Enumeration DateApril 3, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1447371497 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in AZ · 18453
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
515 N 18TH ST, Phoenix, AZ 85006
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINE83106AZ

Other Providers at the Same Location NPPES

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

CESAR S MORALES PA
Physician Assistant (Medical)
515 N 18TH ST
PHOENIX, AZ 85006
Maricopa County (602) 290-3996

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 Gregory Johnston's NPI number?

The NPI number for Gregory Johnston is 1447371497. It was assigned to this individual provider in the NPPES registry on April 3, 2007.

Where is Gregory Johnston located?

Gregory Johnston practices at 515 N 18th St, Phoenix, AZ 85006. The listed phone number is (602) 470-0021.

What is Gregory Johnston's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

When was this NPI record last updated?

The NPPES record for Gregory Johnston was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.