Justin Walter Maroun, M.D., PH.D.
Surgery Physician · Rochester, MN
Justin Walter Maroun, M.D., PH.D. is a surgery physician with a practice address in Rochester, Minnesota, and NPI 1578294476, issued on Jun 21, 2022. Check the license (Minnesota 74675, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Justin Walter Maroun
- Credential
- M.D., PH.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- 74675 MN
32502 MN
Self-reported in NPPES; status is on the state search - Practice location
- 200 1St St SW, Rochester, MN 55905
- Phone
- (507) 284-2511
- Enumerated
- Jun 21, 2022
- Record last updated
- Jul 13, 2023
- Medicare enrollment
- Enrolled (PECOS I20230816002113); accepts Medicare assignment
- Medical or professional school
- Mayo Medical School, 2022
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 742 in Minnesota → Look up another NPI →
Also registered at 200 1St St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kathryn Aaro, P.T.Physical Therapist1619360666
- Danielle Aase, MDReproductive Endocrinology Physician1316524135
- Uzoamaka Abajue, PHARMDPharmacist1982335295
- Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246
Verify Justin Walter Maroun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 74675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average surgery physician in 2024
50 Medicare Part D claims for 34 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Oxycodone Hcl21 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.
Bills Medicare through one group practice
- Mayo ClinicRochester, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Walter Maroun among 742 surgery physician records in Minnesota
Justin Walter Maroun, M.D., PH.D. is one of 742 surgery physician records with a practice address in Minnesota. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 88% of them.
- NPI issued2022 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2022 · median 2009 among the 430 with a school on file
- Record last updated2023 · 50% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
214 surgery physician records list a practice address in Rochester
They are 214 of the 12,854 NPPES records with a practice address in Rochester, and 742 surgery physician records in Minnesota.
All 742 in Minnesota → Every provider in Rochester → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Dalliah Black, MDRochester, MN 559051295725794
- Amy Degnim, M.D.Rochester, MN 559051760468557
- David Farley, M.D.Rochester, MN 559051679559058
- Michael Farnell, M.D.Rochester, MN 559051902882863
- Clive Grant, M.D.Rochester, MN 559051700864600
- Tina Hieken, M.D.Rochester, MN 559051669468898
- Charles Mullany, MBMSRochester, MN 559051063499192
- David Nagorney, M.D.Rochester, MN 559051447238886
Common questions
What is Justin Walter Maroun, M.D., PH.D.'s NPI number?
Justin Walter Maroun, M.D., PH.D.'s National Provider Identifier (NPI) is 1578294476, issued on Jun 21, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Justin Walter Maroun, M.D., PH.D. located?
The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.
How can I verify Justin Walter Maroun, M.D., PH.D.'s license?
NPPES lists Minnesota license number 74675, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Justin Walter Maroun, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Justin Walter Maroun, M.D., PH.D. had 50 Medicare Part D claims for 34 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
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.