DR. GREGORY JOHN DONNELLY D.C.
NPI 1295914372
Chiropractor in Casa Grande, AZ

Q: What is Gregory Donnelly's NPI number?

The NPI number for Gregory Donnelly is 1295914372. It was assigned to this individual provider in the NPPES registry on October 25, 2007.

Q: What is Gregory Donnelly's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Donnelly was last updated on March 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since October 25, 2007Accepts Medicare Assignment

177 W COTTONWOOD LN STE 11, CASA GRANDE, AZ 85122(520) 836-0666(520) 836-9273 Get Directions Write a Review

NPPES record last updated: March 20, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 20, 2026, Jun 11, 2019 (2 updates tracked since 2019).

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About Dr. Gregory John Donnelly D.c. NPPES

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

DR. GREGORY JOHN DONNELLY D.C. (NPI 1295914372) is an individual chiropractor in Casa Grande, Arizona, licensed in Arizona (7865) and active in the NPI registry since October 2007. He maintains a secondary practice location in Casa Grande and is a graduate of Palmer College Chiropractic - Davenport (1992).

NPPES Registry Identity

NPI1295914372

Entity TypeIndividualMale

Primary Taxonomy111N00000X

Provider Legal NameDR. GREGORY JOHN DONNELLYCredential: D.C.

Location Address177 W COTTONWOOD LN STE 11Casa Grande, AZ 85122-2552

Mailing Address177 W Cottonwood Ln Ste 11Casa Grande, AZ 85122-2552 · (520) 836-0666 · Fax (520) 836-9273

Phone(520) 836-0666

Fax(520) 836-9273

Sole ProprietorYes

Medical School CMSPalmer College Chiropractic - DavenportGraduated 1992

Enumeration DateOctober 25, 2007

Last NPPES UpdateMarch 20, 20262 updates tracked since enumeration

NPPES CertifiedMarch 20, 2026

✔ NPI 1295914372 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers

Taxonomy Code111N00000X

License✔ Licensed in AZ · 7865

Definition

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

177 W COTTONWOOD LN STE 11, Casa Grande, AZ 85122

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Secondary Practice Location 1

Location 1121 W Florence Blvd, suite JCasa Grande, AZ 85122-4089 · Phone (520) 709-1937

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Providence Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory John Donnelly D.c. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759443278

PECOS Enrollment IDI20081217000500

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Chiropractic manipulative treatment, 1-2 spinal regions 98940

Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.

452 services96 patients

Chiropractic manipulative treatment, 3-4 spinal regions 98941

Chiropractic manipulative treatment for 3-4 spinal regions involves a trained professional applying controlled force to specific areas of your spine. This can help alleviate pain, improve physical function, and support your body's natural healing process.

314 services82 patients

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 Donnelly's NPI number?

The NPI number for Gregory Donnelly is 1295914372. It was assigned to this individual provider in the NPPES registry on October 25, 2007.

Where is Gregory Donnelly located?

Gregory Donnelly practices at 177 W Cottonwood Ln Ste 11, Casa Grande, AZ 85122. The listed phone number is (520) 836-0666.

What is Gregory Donnelly's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Is Gregory Donnelly enrolled in Medicare?

Yes. Gregory Donnelly is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregory Donnelly accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Providence Health Plan and UnitedHealthcare list Gregory Donnelly as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Donnelly was last updated on March 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.