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

Gregory Lee Guzik, MD

Individual provider Internal Medicine Physician · NPI 1447909213

Gregory Lee Guzik, MD is a Hematology/Oncology in Indianapolis, Indiana. Graduated from Wright State University Boonshoft School of Medicine in 2022, 4 years ago. Licensed in Indiana.

Years since qualifying
4
Trained at
Wright State University Boonshoft School of Medicine
Licensed in
IN
In the registry since
2022
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

535 Barnhill Dr
Indianapolis, IN 46202-5116
Phone: (317) 278-0070
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 01099872A (IN)

Record details

NPI number1447909213
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 21, 2022
Last updated in NPPESApril 16, 2026
Certification dateApril 16, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolWRIGHT STATE UNIVERSITY BOONSHOFT SCHOOL OF MEDICINE
Graduated 2022 (4 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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