Nathaniel John Madsen, M.D.
Interventional Cardiology Physician · Bozeman, MT
Nathaniel John Madsen, M.D. is an interventional cardiology physician with a practice address in Bozeman, Montana, and NPI 1609927607, issued on Jan 16, 2007. Check the license (Montana 18143, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Nathaniel John Madsen
- Credential
- M.D.
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License numbers
- 18143 MT
MED-PHYS-LIC-18143 MT
Self-reported in NPPES; status is on the state search - Practice location
- 937 Highland Blvd Ste 5510, Bozeman, MT 59715
- Phone
- (406) 414-3959
- Enumerated
- Jan 16, 2007
- Record last updated
- Apr 15, 2025
- Medicaid ID
- 1609927607 MT
- Medicare enrollment
- Enrolled (PECOS I20121031000379); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 26 in Montana → Look up another NPI →
Also registered at 937 Highland Blvd Ste 5510
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shauna Bethel, MDPulmonary Disease Physician1770691842
- Ronald Chin, MDCardiovascular Disease Physician1538451539
- Trish Dams, PAMedical Physician Assistant1508317181
- Sara Klinger, D.O.Cardiovascular Disease Physician1659802130
- Erin Locke, NPAdult Health Nurse Practitioner1114679933
Verify Nathaniel John Madsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 18143Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
123 Medicare Part D claims for 39 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Atorvastatin Calcium40 claims
- Clopidogrel31 claims
- Rosuvastatin Calcium15 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): 80.8 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: $14.50
1 payment: food and beverage; the largest payer was Biosense Webster, Inc. The 6,394 providers of this specialty with any payment received $7,062.29 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.
One hospital affiliation
- Bozeman Health Deaconess HospitalBozeman, MT · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nathaniel John Madsen among 26 interventional cardiology physician records in Montana
Nathaniel John Madsen, M.D. is one of 26 interventional cardiology physician records with a practice address in Montana. 85% 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 62% of them.
- NPI issued2007 · 62% of these records are older, 23% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2005 · median 2002 among the 19 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Montana
There are 26 interventional cardiology physician records in Montana.
All 26 in Montana → Every provider in Bozeman → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Jay Bitar, MDButte, MT 597011396795928
- William Hull, DOButte, MT 597011922057389
- James Maddux, MDMissoula, MT 598021942237326
- Mark Sanz, MDMissoula, MT 598021790714251
- Daniel Spoon, M.D.Missoula, MT 598021104021781
- Sarah Fenton, MDHelena, MT 596011225078793
- Richard Paustian, MD FACC FACP FSCAI FHelena, MT 596011790851319
- Nathaniel Hall, M.D.Kalispell, MT 599011063695948
Common questions
What is Nathaniel John Madsen, M.D.'s NPI number?
Nathaniel John Madsen, M.D.'s National Provider Identifier (NPI) is 1609927607, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel John Madsen, M.D. located?
The NPPES record lists a practice address at 937 Highland Blvd Ste 5510, Bozeman, MT, 59715. Phone: (406) 414-3959. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel John Madsen, M.D.'s license?
NPPES lists Montana license number 18143, as entered by the provider. 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 John Madsen, M.D. prescribe under Medicare Part D?
In 2024, Nathaniel John Madsen, M.D. had 123 Medicare Part D claims for 39 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
What is Nathaniel John Madsen, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.8 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.