Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Gregory Alan Zilligen, MD

Individual provider Anesthesiology Physician · NPI 1548550692

Dr. Gregory Alan Zilligen, MD is an Anesthesiology in Indianapolis, Indiana. Graduated from Indiana University School of Medicine in 2011, 15 years ago. Practices with Hancock Physician Network LLC, a 140-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
15
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2011
Specialties on file
2
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

8040 Clearvista Pkwy
Indianapolis, IN 46256-5630
Phone: (317) 614-9850
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 01073439 (IN)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1548550692
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2011
Last updated in NPPESApril 2, 2015

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Hancock Physician Network Llc — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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