Matthew Cossack, M.D.
Ophthalmology Physician · Saint Paul, MN
Matthew Cossack, M.D. is an ophthalmology physician with a practice address in Saint Paul, Minnesota, and NPI 1275948275, issued on Jun 27, 2014. Check the license (Minnesota 63750, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Matthew Cossack
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 63750 MN
2015017084 MO
7191 NE
69145 WI
Self-reported in NPPES; status is on the state search - Practice location
- 401 Phalen Blvd, Saint Paul, MN 55130
- Phone
- (651) 254-7500
- Enumerated
- Jun 27, 2014
- Record last updated
- Mar 13, 2023
- Medicare enrollment
- Enrolled (PECOS I20180713001551); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 434 in Minnesota → Look up another NPI →
Also registered at 401 Phalen Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew Cossack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 63750Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,150 Medicare Part D claims for 322 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Latanoprost471 claims
- Dorzolamide-Timolol128 claims
- Timolol Maleate90 claims
- Dorzolamide Hcl89 claims
- Brimonidine Tartrate63 claims
- Lumigan50 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.
Industry payments in 2024: $273.00
2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Amery Regional Medical Center IncAmery, WI
- Group Health Plan IncSaint Paul, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Cossack among 434 ophthalmology physician records in Minnesota
Matthew Cossack, M.D. is one of 434 ophthalmology physician records with a practice address in Minnesota. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2014 · median 2006 among the 282 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Minnesota
There are 434 ophthalmology physician records in Minnesota.
All 434 in Minnesota → Every provider in Saint Paul → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Spencer Cleland, MDSaint Paul, MN 551301235767286
- Knut Eichhorn, MB BCHSaint Paul, MN 551301831253509
- Kevin WangSaint Paul, MN 551301447756622
- John Zeyer, M.D.Saint Paul, MN 551301558604926
- Michael Floyd, MDWoodbury, MN 551251881813434
- James George, M.D.Woodbury, MN 551251538121454
- Alla Kelly, MDWoodbury, MN 551251174750079
- Scott McKee, M.D.Woodbury, MN 551251710949664
Common questions
What is Matthew Cossack, M.D.'s NPI number?
Matthew Cossack, M.D.'s National Provider Identifier (NPI) is 1275948275, issued on Jun 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Cossack, M.D. located?
The NPPES record lists a practice address at 401 Phalen Blvd, Saint Paul, MN, 55130. Phone: (651) 254-7500. Providers update this record themselves, so call before visiting.
How can I verify Matthew Cossack, M.D.'s license?
NPPES lists Minnesota license number 63750, 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 Matthew Cossack, M.D. prescribe under Medicare Part D?
In 2024, Matthew Cossack, M.D. had 1,150 Medicare Part D claims for 322 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.