Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Michael J Sassman, DO

Individual provider Diagnostic Radiology Physician · NPI 1841263803

Michael J Sassman, DO practises Interventional Radiology in Duluth, Minnesota. Qualified in 1994, 32 years ago. Practices with University Physicians Incorporated, a 3,148-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado, Minnesota and Ohio.

Years since qualifying
32
Licensed in
CO, MN, OH
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

407 E 3rd St
Duluth, MN 55805-1950
Phone: (218) 786-1111
Fax: (218) 786-4091
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12605 E 16th Ave, Aurora, CO 80045-2545 — (720) 848-0000

Specialties & licences

Vascular & Interventional Radiology Physician (primary) Taxonomy 2085R0204X · Licence 34820 (CO)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 34007830 (OH)
Vascular & Interventional Radiology Physician Taxonomy 2085R0204X · Licence 60329 (MN)

Record details

NPI number1841263803
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 9, 2006
Last updated in NPPESJune 14, 2023
Certification dateJune 14, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERVENTIONAL RADIOLOGY
Also practisesDIAGNOSTIC RADIOLOGY, NUCLEAR MEDICINE
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice University Physicians Incorporated — 3148 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Varicose vein removal 31 times · 66th percentile
Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients333
Services billed 1,510 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,057 28 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $619 2 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University Physicians Incorporated

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3148 clinicians in the practice; 12 are shown here.

Other providers in Duluth