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

Thayer Starr Phelan, MD

Individual provider Emergency Medicine Physician · NPI 1821209354

Thayer Starr Phelan, MD practises Emergency Medicine in Winslow, Arizona. Qualified in 2007, 19 years ago. Practices with Innova Emergency Medical Associates PC, a 69-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona, Colorado and Indiana.

Years since qualifying
19
Licensed in
AZ, CO, IN
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1501 N Williamson Ave
Winslow, AZ 86047-2735
Phone: (928) 289-4691
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2651 E Discovery Pkwy, Bloomington, IN 47408-9059 — (812) 353-9515

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence DR.0053427 (CO)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 75374 (AZ)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 01098090A (IN)

Record details

NPI number1821209354
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 25, 2007
Last updated in NPPESDecember 10, 2025
Certification dateDecember 10, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Innova Emergency Medical Associates Pc — 69 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients116
Services billed 237 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 Innova Emergency Medical Associates PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 69 clinicians in the practice; 12 are shown here.

Other providers in Winslow