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

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

Record details

NPI number1225589021
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedOctober 18, 2016
Last updated in NPPESSeptember 24, 2026
Certification dateSeptember 24, 2026

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

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 patients205
Services billed 606 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Center for Orthopedic Research and Education LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 252 clinicians in the practice; 12 are shown here.

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