Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Gregory Caldwell, DO

Individual provider Anesthesiology Physician · NPI 1427555168

Dr. Gregory Caldwell, DO practises Anesthesiology in Cottonwood, Arizona. Qualified in 2018, 8 years ago. Practices with Northern Arizona Healthcare Corporation, a 395-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
8
Licensed in
AZ
In the registry since
2018
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

269 S Candy Ln
Cottonwood, AZ 86326-4158
Phone: (928) 639-6150
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 009585 (AZ)

Record details

NPI number1427555168
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 10, 2018
Last updated in NPPESApril 20, 2026
Certification dateApril 20, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Northern Arizona Healthcare Corporation — 395 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients276
Services billed 322 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Northern Arizona Healthcare Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 395 clinicians in the practice; 12 are shown here.

Other providers in Cottonwood