Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Grayson Steedman Halladay, PA-C

Individual provider Physician Assistant · NPI 1225589021

Grayson Steedman Halladay, PA-C is a Physician Assistant in Phoenix, Arizona. Qualified in 2016, 10 years ago. Practices with Center for Orthopedic Research and Education LLC, a 252-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Arizona.

Years since qualifying
10
Licensed in
AZ
In the registry since
2016
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

9321 W Thomas Rd Ste 205
Phoenix, AZ 85037-3392
Phone: (866) 974-2673
Fax: (866) 939-2673
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 18444 N 25th Ave Ste 210, Phoenix, AZ 85023-1264 — (866) 974-2673

Specialties & licences

Surgical Physician Assistant (primary) Taxonomy 363AS0400X · Licence 6575 (AZ)
Physician Assistant Taxonomy 363A00000X

Record details

NPI number1225589021
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedOctober 18, 2016
Last updated in NPPESAugust 13, 2025
Certification dateAugust 13, 2025
Mailing address18444 N 25th Ave Ste 310, Phoenix, AZ 85023-1266

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Center For Orthopedic Research And Education Llc — 252 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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