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

Aaron Francis Fields, MD

Individual provider Emergency Medicine Physician · NPI 1518300110

Aaron Francis Fields, MD practises Emergency Medicine in Canandaigua, New York. Qualified in 2013, 13 years ago. Practices with The Frederick Ferris Thompson Hospital, a 228-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
13
Licensed in
NY
In the registry since
2013
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

350 Parrish St
Canandaigua, NY 14424-1731
Phone: (585) 396-6150
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 283786 (NY)

Record details

NPI number1518300110
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2013
Last updated in NPPESJanuary 5, 2026
Certification dateJanuary 5, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice The Frederick Ferris Thompson Hospital — 228 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients126
Services billed 150 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

  • F F Thompson Hospital Hospital · Canandaigua, NY

Colleagues at The Frederick Ferris Thompson Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 228 clinicians in the practice; 12 are shown here.

Other providers in Canandaigua