Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Gregory S. Milios, DO

Individual provider Anesthesiology Physician · NPI 1255695870

Dr. Gregory S. Milios, DO is an Anesthesiology in Flagstaff, Arizona. Qualified in 2012, 14 years ago. Practices with Northern Arizona Healthcare Corporation, a 395-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
14
Licensed in
AZ
In the registry since
2012
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

1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone: (928) 779-3366
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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 006921 (AZ)

Record details

NPI number1255695870
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 28, 2012
Last updated in NPPESSeptember 11, 2020
Certification dateSeptember 11, 2020
Mailing address1200 N Beaver St, Flagstaff, AZ 86001-3118

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Northern Arizona Healthcare Corporation — 395 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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