Doctor profile · Federal record

Dr. Mark Korthals, OD

Optometrist (CMS: Optometry) · Maple Grove, MN

  • NPI 1215091749
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
13195 Weaver Lake RD
Maple Grove, MN 553699410
(763) 420-5112
fax (763) 420-6957

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
September 4, 2015
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Minnesota #2972
Medicaid
MN #151668000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215091749. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
42
Distinct HCPCS
2
Medicare allowed
$5,456
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 30 30 $124
92004 New patient complete exam of visual system 12 12 $146

In context: peer comparison

Among 7 peers in this city , average services per provider: 27. This provider delivers 1.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
35
Patients
0
Total drug cost
$478
Drug Type Claims Patients Total cost
Latanoprost Generic 24 0 $372
Timolol Maleate Generic 11 0 $107

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Korthals's medical specialty?
Dr. Mark Korthals practices Optometrist in Maple Grove, MN.
Where does Dr. Mark Korthals practice?
Dr. Mark Korthals practices at 13195 Weaver Lake RD, Maple Grove, MN 553699410. Office phone: 7634205112.
What is Dr. Mark Korthals's NPI?
Dr. Mark Korthals's National Provider Identifier (NPI) is 1215091749, issued by NPPES.
Does Dr. Mark Korthals accept Medicare assignment?
Yes. Dr. Mark Korthals accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Korthals commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); New patient complete exam of visual system (HCPCS 92004). Source: CMS Medicare Physician & Other Practitioners file.