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

Individual provider Surgery Physician · NPI 1851363667

Dr. Jeffrey Justin Rentz, MD practises General Surgery in Billings, Montana. Graduated from University of Virginia School of Medicine in 1998, 28 years ago. Practices with Surgical Associates, PC, a 9-clinician group and accepts Medicare assignment. Licensed in Massachusetts and Montana.

Years since qualifying
28
Trained at
University of Virginia School of Medicine
Licensed in
MA, MT
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.

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Practice location Address checks out

2900 12th Ave N Ste 355W
Billings, MT 59101-7506
Phone: (406) 238-6470
Fax: (406) 238-6499
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 11279 (MT)
Surgery Physician Taxonomy 208600000X · Licence 226178 (MA)

Record details

NPI number1851363667
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 6, 2006
Last updated in NPPESSeptember 11, 2025

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Surgical Associates, Pc — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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