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

Mr. Donovan Lee Grierson, PA

Individual provider Physician Assistant · NPI 1154836526

Mr. Donovan Lee Grierson, PA is a Physician Assistant in Scottsdale, Arizona. Qualified in 2017, 9 years ago. Practices with Quantum Healthcare Medical Associates of Arizona PC, a 36-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
9
Licensed in
AZ
In the registry since
2017
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

13400 E Shea Blvd
Scottsdale, AZ 85259-5499
Phone: (480) 301-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1638 Owen Dr, Fayetteville, NC 28304-3424 — (910) 615-4000

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 8417 (AZ)
Medical Physician Assistant Taxonomy 363AM0700X

Record details

NPI number1154836526
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedDecember 7, 2017
Last updated in NPPESOctober 19, 2021
Certification dateOctober 19, 2021

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Quantum Healthcare Medical Associates Of Arizona Pc — 36 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients250
Services billed 303 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

Colleagues at Quantum Healthcare Medical Associates of Arizona PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 36 clinicians in the practice; 12 are shown here.

Other providers in Scottsdale