NPI Portal NPI Lookup & Verification

Aaron Johnson, DO

Aaron Johnson is a Emergency Medicine Physician provider (Emergency Medicine) practicing in Phoenix, AZ, registered in the NPPES registry with NPI 1477909521 since 2016. The credential DO stands for Doctor of Osteopathic Medicine.

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NPI 1477909521
Entity type Individual (Type 1)
Name Aaron Johnson
Credential DO
Sex Male
Practice address 2601 E ROOSEVELT ST, Phoenix, AZ, 85008
Phone 2082011301
Enumeration date 2016-05-09
Last updated in NPPES 2018-10-19

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207P00000X Emergency Medicine Physician Primary 007736 AZ
390200000X Student in an Organized Health Care Education/Training Program Secondary

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Copy-ready billing details
Provider: Aaron Johnson, DO
NPI: 1477909521
Taxonomy: 207P00000X (Emergency Medicine Physician)
Address: 2601 E ROOSEVELT ST, Phoenix, AZ, 85008

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1871580167 Michael Murray Individual Anesthesiology Physician Phoenix, AZ
1225028384 Judith Gallob Individual Occupational Health Registered Nurse Phoenix, AZ
1538140793 Keith Paley Individual Surgery Physician Phoenix, AZ

Verify this record

Cross-check NPI 1477909521 against the authoritative CMS record: view Aaron Johnson on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Aaron Johnson?
Aaron Johnson is registered in NPPES with the primary taxonomy of Emergency Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-10-19.