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

DR. GREGORY JAMES DAVIS MD
NPI 1548207137
Psychiatry & Neurology - Psychiatry in Phoenix, AZ

Q: What is Gregory Davis's NPI number?

The NPI number for Gregory Davis is 1548207137. It was assigned to this individual provider in the NPPES registry on June 1, 2006.

Q: What is Gregory Davis's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Davis 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 34 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.

Active since June 01, 2006

650 E INDIAN SCHOOL RD, PHOENIX, AZ 85012(602) 277-5551 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Gregory James Davis Md NPPES

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

DR. GREGORY JAMES DAVIS MD (NPI 1548207137) is an individual psychiatry provider in Phoenix, Arizona, licensed in Arizona (19555) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1548207137

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. GREGORY JAMES DAVISCredential: MD

Location Address650 E INDIAN SCHOOL RDPhoenix, AZ 85012-1839

Mailing Address8342 E Whispering Wind DrScottsdale, AZ 85255-2845 · (480) 585-1956

Phone(602) 277-5551

Sole ProprietorNo

Enumeration DateJune 1, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1548207137 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in AZ · 19555

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

650 E INDIAN SCHOOL RD, Phoenix, AZ 85012

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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.

MRS. KORENA AYN FINE RN

Registered Nurse

650 E INDIAN SCHOOL RD
PHOENIX, AZ 85012

Maricopa County (602) 277-5551

MR. THOMAS ARROYO IV CNA

Nurse's Aide

650 E INDIAN SCHOOL RD
PHOENIX, AZ 85012

Maricopa County (602) 277-5551

AMANDA NICOLE GODINEZ

Social Worker

650 E INDIAN SCHOOL RD
PHOENIX, AZ 85012

Maricopa County (602) 757-3396

DONNA VAZIRNIA PHARMD

Pharmacist

650 E INDIAN SCHOOL RD
PHOENIX, AZ 85012

Maricopa County (602) 277-5551

IONUT TIRSOREANU

Pharmacist

650 E INDIAN SCHOOL RD
PHOENIX, AZ 85012

Maricopa County (602) 277-5551

MS. DEANN KAY HILDEBRANDT FNP

Nurse Practitioner (Family)

650 E INDIAN SCHOOL RD
PHOENIX, AZ 85012

Maricopa County (602) 277-5551

DR. DANIELLE H HERNANDEZ PH.D.

Psychologist (Clinical)

650 E INDIAN SCHOOL RD, 116B
PHOENIX, AZ 85012

Maricopa County (602) 277-5551

DEPARTMENT OF VETERANS AFFAIRS

Military Hospital

650 E INDIAN SCHOOL RD
PHOENIX, AZ 85012

Maricopa County (602) 277-5551

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 Davis's NPI number?

The NPI number for Gregory Davis is 1548207137. It was assigned to this individual provider in the NPPES registry on June 1, 2006.

Where is Gregory Davis located?

Gregory Davis practices at 650 E Indian School Rd, Phoenix, AZ 85012. The listed phone number is (602) 277-5551.

What is Gregory Davis's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Gregory Davis 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 34 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.