Jeffrey Justin Rentz, M.D.
Specialist · Billings, MT
Jeffrey Justin Rentz, M.D. is a specialist with a practice address in Billings, Montana, and NPI 1851363667, issued on Feb 6, 2006. Check the license (Montana 11279, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Justin Rentz
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License numbers
- 11279 MT
226178 MA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 12TH Ave N, Billings, MT 59101
- Phone
- (406) 238-6470
- Enumerated
- Feb 6, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (406) 238-6499
- Medicare enrollment
- Enrolled (PECOS I20070102000121); accepts Medicare assignment
- Medical or professional school
- University Of Virginia School Of Medicine, 1998
- Entity
- Type 1 · individual
Also registered at 2900 12TH Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joanne Bents, NPFamily Nurse Practitioner1790727261
- George Bentzel, MDSurgery Physician1689699621
- Marion Blackman, ATCAthletic Trainer1053356105
- John Brandon, MDDiagnostic Radiology Physician1912943978
Verify Jeffrey Justin Rentz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 11279Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average specialist in 2024
121 Medicare Part D claims for 58 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 48 claims were for opioids.
Most prescribed
- Methocarbamol25 claims
- Tramadol Hcl24 claims
- Oxycodone Hcl23 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $52,445.44
51 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Surgical Associates, PCBillings, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Specialist providers in Montana
There are 127 specialist records in Montana.
Other specialist records in Montana
- Donna Aline, PTHelena, MT1912977422
- Denise Allen, MDMissoula, MT1821198045
- Amber Ashby, LMTPolson, MT1568736528
- Barbara BalkoMissoula, MT1952700213
- Mae Baltazar, P.T.Livingston, MT1487849568
- Bobbie Bamford, LMT NCTMBLibby, MT1972874048
- Jeffrey Barilla, LMTMissoula, MT1952730574
- Shanon Bartosik, CMTWhitefish, MT1073775060
- Stephen Bechdolt, M.D.Havre, MT1306919329
- Tamara-Jo Beich, CMTMissoula, MT1063650059
Common questions
What is Jeffrey Justin Rentz, M.D.'s NPI number?
Jeffrey Justin Rentz, M.D.'s National Provider Identifier (NPI) is 1851363667, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Justin Rentz, M.D. located?
The NPPES record lists a practice address at 2900 12TH Ave N, Billings, MT, 59101. Phone: (406) 238-6470. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Justin Rentz, M.D.'s license?
NPPES lists Montana license number 11279, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Jeffrey Justin Rentz, M.D. prescribe under Medicare Part D?
In 2024, Jeffrey Justin Rentz, M.D. had 121 Medicare Part D claims for 58 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Jeffrey Justin Rentz, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.