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

Aaron Willen, DO

Individual provider Emergency Medicine Physician · NPI 1316352776

Aaron Willen, DO is an Emergency Medicine in Saratoga Springs, New York. Graduated from Philadelphia College of Osteopathic Medicine in 2014, 12 years ago. Practices with Island Emergency Medical Services PC, a 139-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
12
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
NY
In the registry since
2014
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

211 Church St
Saratoga Springs, NY 12866-1003
Phone: (518) 886-5957
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1000 Oakland Dr, Kalamazoo, MI 49008-1282 — (269) 337-4400

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 302721 (NY)

Record details

NPI number1316352776
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 24, 2014
Last updated in NPPESMay 16, 2022
Certification dateMay 16, 2022

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2014 (12 years in practice)
Group practice Island Emergency Medical Services Pc — 139 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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