Nathaniel Rieb, M.D.
Surgery Physician · Billings, MT
Nathaniel Rieb, M.D. is a surgery physician with a practice address in Billings, Montana, and NPI 1508068834, issued on May 31, 2007. Check the license on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Rieb
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 1345 WY
Self-reported in NPPES; status is on the state search - Practice location
- 801 N 29TH St, Billings, MT 59101
- Phone
- (406) 238-2500
- Enumerated
- May 31, 2007
- Record last updated
- Dec 20, 2022
- Medicare enrollment
- Enrolled (PECOS I20101117000610); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 136 in Montana → Look up another NPI →
Also registered at 801 N 29TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Juan Adams, M.D.Allergy & Immunology Physician1144512096
- Daniel AlmeStudent in an Organized Health Care Education/Training Program1477349165
- Luis Alvarez, MDClinical Cardiac Electrophysiology Physician1417951922
- Annalee Anderson, MA, CCC-SLPSpeech-Language Pathologist1083047088
- Bijan Andrade, DPMFoot & Ankle Surgery Podiatrist1891059556
Verify Nathaniel Rieb in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average surgery physician in 2024
190 Medicare Part D claims for 181 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Gavilyte-G128 claims
- Peg-3350 And Electrolytes42 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 MIPS final score for 2023 (Medicare payment program): 94.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Billings ClinicCody, WY
- Stillwater Hospital Association IncColumbus, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel Rieb among 136 surgery physician records in Montana
Nathaniel Rieb, M.D. is one of 136 surgery physician records with a practice address in Montana. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.
- NPI issued2007 · 51% of these records are older, 31% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2005 · median 2003 among the 92 with a school on file
- Record last updated2022 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Montana
There are 136 surgery physician records in Montana.
All 136 in Montana → Every provider in Billings → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- George Bentzel, MDBillings, MT 591011689699621
- Timothy Dernbach, MDBillings, MT 591011962440800
- Eric Dringman, MDBillings, MT 591011245262583
- Scott Dull, MDBillings, MT 591011174634919
- John Gregory, MDBillings, MT 591011861504847
- Paul Grmoljez, MDBillings, MT 591011831241785
- Kathryn Hatch, MDBillings, MT 591011275558215
- Terry Housinger, MDBillings, MT 591011790705234
Common questions
What is Nathaniel Rieb, M.D.'s NPI number?
Nathaniel Rieb, M.D.'s National Provider Identifier (NPI) is 1508068834, issued on May 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Rieb, M.D. located?
The NPPES record lists a practice address at 801 N 29TH St, Billings, MT, 59101. Phone: (406) 238-2500. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Rieb, M.D.'s license?
Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathaniel Rieb, M.D. prescribe under Medicare Part D?
In 2024, Nathaniel Rieb, M.D. had 190 Medicare Part D claims for 181 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Nathaniel Rieb, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.3 of 100. 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.