Marty Thomas Mertens, M.D.
Rheumatology Physician · Woodbury, MN
Marty Thomas Mertens, M.D. is a rheumatology physician with a practice address in Woodbury, Minnesota, and NPI 1558555896, issued on Aug 29, 2007. Check the license (Minnesota 53102, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Marty Thomas Mertens
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- 53102 MN
74742-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 4040 Radio Dr, Woodbury, MN 55129
- Phone
- (651) 439-8807
- Enumerated
- Aug 29, 2007
- Record last updated
- May 25, 2023
- Fax
- (651) 439-0232
- Medicare enrollment
- Enrolled (PECOS I20210312001861); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2007
- Entity
- Type 1 · individual
Also registered at 4040 Radio Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Bert, M.D.Rheumatology Physician1760776512
- David Bowman, PTPhysical Therapist1982018743
- Caroline Chen, MDOrthopaedic Surgery Physician1700446960
- Jennifer Ellis, PA-CPhysician Assistant1013986611
- Fernando Espinosa, PTPhysical Therapist1265107700
- Sharon Frattalone, D.O.Rheumatology Physician1891994067
Verify Marty Thomas Mertens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 53102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average rheumatology physician in 2024
2,171 Medicare Part D claims for 331 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 22 claims were for opioids.
Most prescribed
- Prednisone357 claims
- Methotrexate349 claims
- Hydroxychloroquine Sulfate313 claims
- Leucovorin Calcium117 claims
- Leflunomide104 claims
- Sulfasalazine78 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
- Infinite Health Collaborative, PAHudson, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rheumatology Physician providers in Minnesota
There are 173 rheumatology physician records in Minnesota.
Other rheumatology physician records in Minnesota
- Saud Abaalkhail, M.B.,B.S.Minneapolis, MN1982180733
- Upasana Agrawal, MBBSRochester, MN1417691932
- Nehaal Ahmed, MDRochester, MN1558064006
- Bharath Manu Akkara Veetil, MBBSSaint Cloud, MN1023174323
- Rayhaan Akram, MDSaint Paul, MN1457871659
- Fatima Alnaimat, M.DDuluth, MN1215166145
- Shreyasee Amin, M.D.Rochester, MN1316917552
- Stephanie Anderson, MDSt Paul, MN1225136617
- Courtney Arment, MDRochester, MN1134350770
- Sara Baig, MDEdina, MN1891182069
Common questions
What is Marty Thomas Mertens, M.D.'s NPI number?
Marty Thomas Mertens, M.D.'s National Provider Identifier (NPI) is 1558555896, issued on Aug 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marty Thomas Mertens, M.D. located?
The NPPES record lists a practice address at 4040 Radio Dr, Woodbury, MN, 55129. Phone: (651) 439-8807. Providers update this record themselves, so call before visiting.
How can I verify Marty Thomas Mertens, M.D.'s license?
NPPES lists Minnesota license number 53102, 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 Marty Thomas Mertens, M.D. prescribe under Medicare Part D?
In 2024, Marty Thomas Mertens, M.D. had 2,171 Medicare Part D claims for 331 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.