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

John Gregory Jones, MD

Individual provider Addiction Medicine (Preventive Medicine) Physician · NPI 1801970421

John Gregory Jones, MD is an Emergency Medicine in Greenfield, Indiana. Graduated from Indiana University School of Medicine in 1984, 42 years ago. Practices with Monticello Emergency Care, LLC, a 6-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
42
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2006
Specialties on file
2
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
Phone: (317) 468-4415
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 01034334 (IN)
Addiction Medicine (Preventive Medicine) Physician Taxonomy 2083A0300X · Licence 01034334 (IN)

Record details

NPI number1801970421
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2006
Last updated in NPPESJanuary 6, 2023
Certification dateJanuary 6, 2023
Mailing address7097 W Carrie Dr, New Palestine, IN 46163-9574

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Monticello Emergency Care, Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount