NPPES file of Aug 9, 2026

Nelson Winkler, M.D.

Ophthalmology Physician · Marquette, MI

Nelson Winkler, M.D. is an ophthalmology physician with a practice address in Marquette, Michigan, and NPI 1740669944, issued on May 21, 2015. Check the license (Michigan 4301117499, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740669944
Name
Nelson Winkler
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
4301117499 MI
60961 MN
Self-reported in NPPES; status is on the state search
Practice location
1414 W Fair Ave Ste 347, Marquette, MI 49855
Phone
(906) 205-2125
Enumerated
May 21, 2015
Record last updated
Aug 5, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190802002920); accepts Medicare assignment
Medical or professional school
Mayo Medical School, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Nelson Winkler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301117499
    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
Open the Michigan license search

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5% more Medicare Part D claims than the average ophthalmology physician in 2024

1,598 Medicare Part D claims for 348 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Nelson Winkler1,598
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate273 claims
  2. Latanoprost270 claims
  3. Ketorolac Tromethamine212 claims
  4. Dorzolamide-Timolol188 claims
  5. Ofloxacin162 claims
  6. Timolol Maleate84 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: $102.81

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.

  1. Nelson Winkler$102.81
  2. Specialty average$4,535.02

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

Nelson Winkler among 791 ophthalmology physician records in Michigan

Nelson Winkler, M.D. is one of 791 ophthalmology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 77% of them.

  • NPI issued2015 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2015 · median 2002 among the 548 with a school on file
  • Record last updated2021 · 60% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Michigan

There are 791 ophthalmology physician records in Michigan.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Robert DellangeloMarquette, MI 498551477532927
  2. John Kublin, MDMarquette, MI 498551427002203
  3. Sean Rooney, M.D., PH.D.Marquette, MI 498551952350159
  4. Neil Winkler, M.D.Marquette, MI 498551184674665
  5. Darrell Kohli, MDEscanaba, MI 498291285633685
  6. Carol Kolinsky, MDEscanaba, MI 498291922007269
  7. Shalini Johnson, M.D.Houghton, MI 499311629287040
  8. Paul Leep, M.D.Houghton, MI 499311093786378

Common questions

What is Nelson Winkler, M.D.'s NPI number?

Nelson Winkler, M.D.'s National Provider Identifier (NPI) is 1740669944, issued on May 21, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Nelson Winkler, M.D. located?

The NPPES record lists a practice address at 1414 W Fair Ave Ste 347, Marquette, MI, 49855. Phone: (906) 205-2125. Providers update this record themselves, so call before visiting.

How can I verify Nelson Winkler, M.D.'s license?

NPPES lists Michigan license number 4301117499, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nelson Winkler, M.D. prescribe under Medicare Part D?

In 2024, Nelson Winkler, M.D. had 1,598 Medicare Part D claims for 348 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.