Mark Korthals, OD
Optometrist · Maple Grove, MN
Mark Korthals, OD is an optometrist with a practice address in Maple Grove, Minnesota, and NPI 1215091749, issued on Dec 20, 2006. Check the license (Minnesota 2972, as entered in NPPES) with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Korthals
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2972 MN
Self-reported in NPPES; status is on the state search - Practice location
- 13195 Weaver Lake RD, Maple Grove, MN 55369
- Phone
- (763) 420-5112
- Enumerated
- Dec 20, 2006
- Record last updated
- Sep 4, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (763) 420-6957
- Medicaid ID
- 151668000 MN
- Medicare enrollment
- Enrolled (PECOS I20041007000195); accepts Medicare assignment
- Medical or professional school
- Illinois College Of Optometry At Chicago, 2004
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,142 in Minnesota → Look up another NPI →
Also registered at 13195 Weaver Lake RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raymond Chartier, O.D.Optometrist1134854706
- Kelly Crenna, O.D.Optometrist1053540690
- Ben Hume, O.D.Optometrist1487864914
- Rachel Knutson, ODCorneal and Contact Management Optometrist1760830012
- Brandon Larson, ODOptometrist1831453455
- Vicki Luehmann, O.D.Optometrist1942399456
Verify Mark Korthals in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
Search for license 2972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average optometrist in 2024
66 Medicare Part D claims for 36 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
Most prescribed
- Neomycin-Polymyxin-Dexameth22 claims
- Latanoprost21 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.
Bills Medicare through 2 group practices
- Hutchinson Superstore IncHutchinson, MN
- Minnesota Optical LLCElk River, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Korthals among 1,142 optometrist records in Minnesota
Mark Korthals, OD is one of 1,142 optometrist records with a practice address in Minnesota. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2004 · median 2008 among the 778 with a school on file
- Record last updated2015 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 optometrist records list a practice address in Maple Grove
They are 32 of the 1,568 NPPES records with a practice address in Maple Grove, and 1,142 optometrist records in Minnesota.
All 1,142 in Minnesota → Every provider in Maple Grove → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Rebecca Bader, ODMaple Grove, MN 553691306916622
- William Brose, O.D.,Maple Grove, MN 553691801933627
- Tracy Christensen, ODMaple Grove, MN 553691568523843
- Michael Dieter, O.D.Maple Grove, MN 553691245374115
- Brian Hamann, ODMaple Grove, MN 553691700864667
- Anthony Lovcik, O.D.Maple Grove, MN 553691205971975
- Vicki Luehmann, O.D.Maple Grove, MN 553691942399456
- Michelle Martin, O.D.Maple Grove, MN 553691386652907
Common questions
What is Mark Korthals, OD's NPI number?
Mark Korthals, OD's National Provider Identifier (NPI) is 1215091749, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Korthals, OD located?
The NPPES record lists a practice address at 13195 Weaver Lake RD, Maple Grove, MN, 55369. Phone: (763) 420-5112. Providers update this record themselves, so call before visiting.
How can I verify Mark Korthals, OD's license?
NPPES lists Minnesota license number 2972, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Korthals, OD prescribe under Medicare Part D?
In 2024, Mark Korthals, OD had 66 Medicare Part D claims for 36 beneficiaries; the average among optometrist prescribers was 277. 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.