Doctor profile · Federal record

Dr. Matthew Cossack, M.D.

Ophthalmology Physician (CMS: Ophthalmology) · Internal Medicine Physician · Ophthalmology Physician · Ophthalmology Physician · Saint Paul, MN

  • NPI 1275948275
  • Accepts Medicare
  • 12 yrs in practice
  • Licensed in 4 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
401 Phalen Blvd
Saint Paul, MN 551305302
(651) 254-7500
Additional location
1210 County Road E W
Arden Hills, MN 551123783
(651) 523-8400
Additional location
400 E 3Rd St
Duluth, MN 55805
(218) 786-3937
fax (218) 786-8166
Mailing address
1702 University Dr S
Fargo, ND 581034940

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
March 13, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207W00000X — NUCC code
State licenses (4)
Minnesota #63750 · Nebraska #7191 · Missouri #2015017084 · Wisconsin #69145

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275948275. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
583
Distinct HCPCS
10
Medicare allowed
$38,631
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 58 56 $93
92133 Imaging of optic nerve 52 52 $21
99214 Established patient office or other outpatient visit, 30-39 minutes 46 42 $120
92083 Exam of visual field with extended testing 43 41 $26
92014 Established patient complete exam of visual system 42 42 $75
92133 Imaging of optic nerve 37 36 $34
92134 Imaging of retina 36 28 $24
92014 Established patient complete exam of visual system 33 33 $106
92136 Measurement of corneal curvature and depth of eye 31 31 $45
99213 Established patient office or other outpatient visit, 20-29 minutes 30 28 $63

In context: peer comparison

Among 4 peers in Saint Paul Ophthalmology Physician, average services per provider: 89. This provider delivers 6.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$273
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Alcon Vision LLC 1 $142.75
Glaukos Corporation 1 $130.25

By nature of payment

Food and Beverage
$273

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,389
Patients
454
Total drug cost
$52,919
Drug Type Claims Patients Total cost
Latanoprost Generic 640 163 $12,933
Brimonidine Tartrate Generic 148 40 $1,953
Prednisolone Acetate Generic 126 87 $4,714
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 121 44 $5,050
Dorzolamide Hcl Generic 119 32 $3,100
Timolol Maleate Generic 112 36 $2,605
Alphagan P (Brimonidine Tartrate) Brand 27 0 $7,274
Erythromycin (Erythromycin Base) Brand 24 20 $295
Ketorolac Tromethamine Generic 20 14 $393
Lumigan (Bimatoprost) Brand 20 0 $5,188

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Matthew Cossack's medical specialty?
Dr. Matthew Cossack practices Ophthalmology Physician in Saint Paul, MN.
Where does Dr. Matthew Cossack practice?
Dr. Matthew Cossack practices at 401 Phalen Blvd, Saint Paul, MN 551305302. Office phone: 6512547500.
What is Dr. Matthew Cossack's NPI?
Dr. Matthew Cossack's National Provider Identifier (NPI) is 1275948275, issued by NPPES.
Does Dr. Matthew Cossack accept Medicare assignment?
Yes. Dr. Matthew Cossack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Cossack commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Imaging of optic nerve (HCPCS 92133); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.