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

Individual provider Internal Medicine Physician · NPI 1275948275

Dr. Matthew Cossack, MD practises Ophthalmology in Saint Paul, Minnesota. Graduated from Creighton University School of Medicine in 2014, 12 years ago. Practices with Group Health Plan Inc, a 1,633-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Minnesota, Missouri, Nebraska and Wisconsin.

Years since qualifying
12
Trained at
Creighton University School of Medicine
Licensed in
MN, MO, NE, WI
In the registry since
2014
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

401 Phalen Blvd
Saint Paul, MN 55130-5302
Phone: (651) 254-7500
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 (2)

  • 1210 County Road E W, Arden Hills, MN 55112-3783 — (651) 523-8400
  • 400 E 3rd St, Duluth, MN 55805 — (218) 786-3937

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 63750 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 7191 (NE)
Ophthalmology Physician Taxonomy 207W00000X · Licence 2015017084 (MO)
Ophthalmology Physician Taxonomy 207W00000X · Licence 69145 (WI)

Record details

NPI number1275948275
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2014
Last updated in NPPESMarch 13, 2023
Certification dateMarch 13, 2023

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Group Health Plan Inc — 1633 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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.

Cataract surgery 93 times · 73rd percentile
Removal or shaving of skin growth 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 patients249
Services billed 686 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Regions Hospital Hospital · Saint Paul, MN
  • Amery Hospital & Clinic Hospital · Amery, WI

Colleagues at Group Health Plan Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1633 clinicians in the practice; 12 are shown here.

Other providers in Saint Paul