NPPES file of Aug 9, 2026

Michael Edward Possin, M.D.

Retina Specialist (Ophthalmology) Physician · Appleton, WI

Michael Edward Possin, M.D. is a retina specialist (ophthalmology) physician with a practice address in Appleton, Wisconsin, and NPI 1811253289, issued on Apr 10, 2012. Check the license (Wisconsin 65572, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1811253289
Name
Michael Edward Possin
Credential
M.D.
Primary taxonomy
Retina Specialist (Ophthalmology) Physician 207WX0107X
License number
65572 WI
Self-reported in NPPES; status is on the state search
Practice location
442 N Westhill Blvd Ste A, Appleton, WI 54914
Phone
(920) 751-8666
Enumerated
Apr 10, 2012
Record last updated
Aug 29, 2023
Fax
(920) 751-0822
Medicare enrollment
Enrolled (PECOS I20160531002281); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2012
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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Also registered at 442 N Westhill Blvd Ste A

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

  1. Benjamin Ernst, M.D.Retina Specialist (Ophthalmology) Physician1518162247
  2. Anthony Parendo, M.D.Retina Specialist (Ophthalmology) Physician1043690233

Verify Michael Edward Possin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 65572
    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 Wisconsin 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.

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64% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024

226 Medicare Part D claims for 84 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.

  1. Michael Possin226
  2. Specialty average620

Most prescribed

  1. Prednisolone Acetate87 claims
  2. Ketorolac Tromethamine40 claims
  3. Dorzolamide-Timolol18 claims
  4. Latanoprost11 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 one group practice

  1. Northeast Wisconsin Retina Associates SCAppleton, WI

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

Michael Edward Possin among 27 retina specialist (ophthalmology) physician records in Wisconsin

Michael Edward Possin, M.D. is one of 27 retina specialist (ophthalmology) physician records with a practice address in Wisconsin. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 56% of them.

  • NPI issued2012 · 56% of these records are older, 37% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 85% of these records are
  • Graduated2012 · median 2011 among the 23 with a school on file
  • Record last updated2023 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Retina Specialist (Ophthalmology) Physician providers in Wisconsin

There are 27 retina specialist (ophthalmology) physician records in Wisconsin.

The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Benjamin Ernst, M.D.Appleton, WI 549141518162247
  2. Anthony Parendo, M.D.Appleton, WI 549141043690233
  3. Rajeev Buddi, MDNeenah, WI 549561700819281
  4. Charles Hejny, MDNeenah, WI 549561922013671
  5. Khalid Kahook, M.D.,Neenah, WI 549561356640726
  6. John Rosculet, MDNeenah, WI 549561679580070
  7. Sunday Olatunji, M.D.Eau Claire, WI 547031316131956
  8. Wayne Wu, MDEau Claire, WI 547011720015621

Common questions

What is Michael Edward Possin, M.D.'s NPI number?

Michael Edward Possin, M.D.'s National Provider Identifier (NPI) is 1811253289, issued on Apr 10, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Michael Edward Possin, M.D. located?

The NPPES record lists a practice address at 442 N Westhill Blvd Ste A, Appleton, WI, 54914. Phone: (920) 751-8666. Providers update this record themselves, so call before visiting.

How can I verify Michael Edward Possin, M.D.'s license?

NPPES lists Wisconsin license number 65572, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael Edward Possin, M.D. prescribe under Medicare Part D?

In 2024, Michael Edward Possin, M.D. had 226 Medicare Part D claims for 84 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. 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.