Martin Okun
NPI 1598144867 · Dermatology Physician · Fort Atkinson, WI
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martin Okun is a Dermatology Physician provider in Fort Atkinson, WI (NPI 1598144867).
Provider details
- NPI number
- 1598144867
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 43279-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
710 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 134 | $61 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 130 | $2 |
| Destruction of Skin Growth, 1-14 Growths17110 | 107 | $64 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 76 | $47 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 69 | $33 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 185 | 126 |
| Doxycycline Hyclate | 92 | 27 |
| Dupilumabbrand: Dupixent Pen | 77 | — |
| Minoxidil | 71 | 11 |
| Hydrocortisone | 57 | 41 |
| Ketoconazole | 57 | 25 |
| Clobetasol Propionate | 55 | 25 |
| Methotrexate Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16,042 across 20 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-20
- Last updated
- 2016-02-06
Frequently asked questions
- What is Martin Okun's NPI number?
- Martin Okun's National Provider Identifier (NPI) is 1598144867, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Okun's specialty?
- Martin Okun is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Martin Okun located?
- Martin Okun's practice location on file with NPPES is 611 Sherman Ave E, Fort Atkinson, WI 53538-1960.
- What is Martin Okun's phone number?
- The practice phone number listed in the NPPES registry for Martin Okun is (920) 568-1000.
- Does Martin Okun accept Medicare?
- Martin Okun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martin Okun's NPI active?
- Yes — Martin Okun's NPI (1598144867) is active in the NPPES registry as of the last update on 2016-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.