Michael John Kassing, MD
Obstetrics & Gynecology Physician · Duluth, MN
Michael John Kassing, MD is an obstetrics & gynecology physician with a practice address in Duluth, Minnesota, and NPI 1699801712, issued on Feb 25, 2007. Check the license (Minnesota 19445, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Michael John Kassing
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 19445 MN
Self-reported in NPPES; status is on the state search - Practice location
- 400 E 3RD St, Duluth, MN 55805
- Phone
- (218) 786-3800
- Enumerated
- Feb 25, 2007
- Record last updated
- May 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 1699801712 MN
- Medicare enrollment
- Enrolled (PECOS I20150812007643); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2006
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 878 in Minnesota → Look up another NPI →
Also registered at 400 E 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael John Kassing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 19445Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
113 Medicare Part D claims for 40 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Estradiol20 claims
- Trospium Chloride18 claims
- Oxycodone Hcl14 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 2 group practices
- Polinsky Medical Rehabilitation CenterDuluth, MN
- The Duluth Clinic LtdDuluth, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael John Kassing among 878 obstetrics & gynecology physician records in Minnesota
Michael John Kassing, MD is one of 878 obstetrics & gynecology physician records with a practice address in Minnesota. 73% 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, 40% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2006 · median 2007 among the 569 with a school on file
- Record last updated2011 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Minnesota
There are 878 obstetrics & gynecology physician records in Minnesota.
All 878 in Minnesota → Every provider in Duluth → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Stephen BloomDuluth, MN 558051245269695
- Jennifer Boyle, MDDuluth, MN 558051073582375
- Irene CarrDuluth, MN 558051437194735
- Susan Goltz, MDDuluth, MN 558051811966500
- Scott JohnsonDuluth, MN 558051063445922
- James KobersteinDuluth, MN 558051396785986
- Michael Laberge, M.D.Duluth, MN 558051902844715
- Melissa Miller, MDDuluth, MN 558051235108366
Common questions
What is Michael John Kassing, MD's NPI number?
Michael John Kassing, MD's National Provider Identifier (NPI) is 1699801712, issued on Feb 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Michael John Kassing, MD located?
The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-3800. Providers update this record themselves, so call before visiting.
How can I verify Michael John Kassing, MD's license?
NPPES lists Minnesota license number 19445, 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 Michael John Kassing, MD prescribe under Medicare Part D?
In 2024, Michael John Kassing, MD had 113 Medicare Part D claims for 40 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.