Martin Okun
Dermatology Physician · Fort Atkinson, WI
Martin Okun is a dermatology physician with a practice address in Fort Atkinson, Wisconsin, and NPI 1598144867, issued on May 20, 2015. Check the license (Wisconsin 43279-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Martin Okun
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 43279-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 611 Sherman Ave E, Fort Atkinson, WI 53538
- Phone
- (920) 568-1000
- Enumerated
- May 20, 2015
- Record last updated
- Feb 6, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (920) 568-5477
- Medicare enrollment
- Enrolled (PECOS I20050526000899); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1990
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 325 in Wisconsin → Look up another NPI →
Also registered at 611 Sherman Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ailleen Alquinto Anonuevo, M.D.Internal Medicine Physician1417900143
- Michael Anderson, M.D.Otolaryngology Physician1588685077
- Lisa Ashwill, RDN, CDRegistered Dietitian1689217580
- Jonathan Beck, DNP, CRNACertified Registered Nurse Anesthetist1831648989
- Debra Bingham, CRNACertified Registered Nurse Anesthetist1154479889
- James Brown, P.A.Physician Assistant1831179910
Verify Martin Okun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 43279-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average dermatology physician in 2024
1,113 Medicare Part D claims for 313 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Triamcinolone Acetonide185 claims
- Doxycycline Hyclate92 claims
- Dupixent Pen77 claims
- Minoxidil71 claims
- Hydrocortisone57 claims
- Ketoconazole57 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: $16,042.11
20 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Fort Healthcare IncFort Atkinson, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Martin Okun among 325 dermatology physician records in Wisconsin
Martin Okun is one of 325 dermatology physician records with a practice address in Wisconsin. 82% 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 71% of them.
- NPI issued2015 · 71% of these records are older, 24% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1990 · median 2009 among the 228 with a school on file
- Record last updated2016 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Wisconsin
There are 325 dermatology physician records in Wisconsin.
All 325 in Wisconsin → Every provider in Fort Atkinson → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- C. Conley, M.D.Fort Atkinson, WI 535381578587598
- Robert Glinert, MDFort Atkinson, WI 535381144271404
- Jennifer Peterson, MDDodgeville, WI 535331700841178
- Lauren Craddock, M.D.Janesville, WI 535461518223148
- Kristi Knuijt, MDJanesville, WI 535461619928918
- David Nelsen, MDJanesville, WI 535461417184169
- Bruce Pearson, MDJanesville, WI 535481518919919
- Paul Segal, MDBeloit, WI 535111720097165
Common questions
What is Martin Okun's NPI number?
Martin Okun's National Provider Identifier (NPI) is 1598144867, issued on May 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Martin Okun located?
The NPPES record lists a practice address at 611 Sherman Ave E, Fort Atkinson, WI, 53538. Phone: (920) 568-1000. Providers update this record themselves, so call before visiting.
How can I verify Martin Okun's license?
NPPES lists Wisconsin license number 43279-20, 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 Martin Okun prescribe under Medicare Part D?
In 2024, Martin Okun had 1,113 Medicare Part D claims for 313 beneficiaries; the average among dermatology physician prescribers was 797. 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.