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

Derek Seiler, MD

Individual provider Anesthesiology Physician · NPI 1720165186

Derek Seiler, MD practises Anesthesiology in Greenfield, Indiana. Graduated from Indiana University School of Medicine in 2003, 23 years ago. Practices with Associated Anesthesiologists of Fort Wayne PC, a 102-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
23
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

801 N State St
Greenfield, IN 46140-1270 Not confirmed with CMS for 19 years — call before visiting
Phone: (317) 802-6315
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 01059457 (IN)

Record details

NPI number1720165186
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESJuly 9, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Associated Anesthesiologists Of Fort Wayne Pc — 102 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 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 patients88
Services billed 113 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 Associated Anesthesiologists of Fort Wayne PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 102 clinicians in the practice; 12 are shown here.

Other providers in Greenfield