Registry data as of Aug 27, 2026

Murphy Grotewold

Optometrist · Mankato, MN

Murphy Grotewold is an optometrist with a practice address in Mankato, Minnesota, and NPI 1376049031, issued on Apr 2, 2018. Check the license (Minnesota 3555, as entered in NPPES) with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1376049031
Name
Murphy Grotewold
Primary taxonomy
Optometrist 152W00000X
License number
3555 MN
Self-reported in NPPES; status is on the state search
Practice location
220 E Main St, Mankato, MN 56001
Phone
(507) 345-5087
Enumerated
Apr 2, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 220 E Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Molly BarberBehavior Technician1235770603
  2. Rebecca BeamDental Hygienist1396683793
  3. Rebekah BeierBehavior Technician1407466642
  4. Anne GilbertsonBehavior Analyst1972112050
  5. Kaylee JohnsonBehavior Technician1932033529
  6. George Lach, O.D.Optometrist1609826577

Verify Murphy Grotewold in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license 3555
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Minnesota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

21% fewer Medicare Part D claims than the average optometrist in 2024

220 Medicare Part D claims for 53 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Murphy Grotewold220
  2. Specialty average277

Most prescribed

  1. Latanoprost112 claims
  2. Dorzolamide-Timolol23 claims
  3. Brimonidine Tartrate15 claims
  4. Timolol Maleate14 claims
  5. Xiidra12 claims
  6. Erythromycin11 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: $172.80

5 payments, mostly food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Murphy Grotewold$172.80
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Carlson Tillisch Eye Clinic LtdMankato, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Optometrist providers in Minnesota

There are 1,142 optometrist records in Minnesota.

Other optometrist records in Minnesota

  1. Michael Ackermann, ODLake City, MN1063441830
  2. Bradley Adams, O.D.Brainerd, MN1477652212
  3. Kristin Adams, ODMinneapolis, MN1447779442
  4. Anna Aho, ODAnnandale, MN1518537786
  5. Kamran Ahrar, ODLakeville, MN1134156755
  6. Stephen Akre, O.D.New Ulm, MN1881680056
  7. Afrouz Alai, O.DCottage Grove, MN1861920266
  8. Mitchell Albers, O.D.Maplewood, MN1407806763
  9. Toni Albrecht, ODEdina, MN1679580500
  10. Franklin AlexanderWhite Bear Lake, MN1134955933

Common questions

What is Murphy Grotewold's NPI number?

Murphy Grotewold's National Provider Identifier (NPI) is 1376049031, issued on Apr 2, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Murphy Grotewold located?

The NPPES record lists a practice address at 220 E Main St, Mankato, MN, 56001. Phone: (507) 345-5087. Providers update this record themselves, so call before visiting.

How can I verify Murphy Grotewold's license?

NPPES lists Minnesota license number 3555, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.

How much does Murphy Grotewold prescribe under Medicare Part D?

In 2024, Murphy Grotewold had 220 Medicare Part D claims for 53 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.