Quick answers
- Where does Peter J. Katz see patients?
- Medicare's clinician data lists 2 practice locations, including Fond Du Lac, WI and Appleton, WI. Call before your visit to confirm the address.
- What is Peter J. Katz's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Peter J. Katz accept Medicare assignment?
- Yes. Medicare's clinician data says Peter J. Katz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Peter J. Katz?
- (920) 923-0788, as listed in official Medicare / NPI Registry data.
- What is Peter J. Katz's NPI number?
- 1477725141. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Peter J. Katz is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 Wisconsin American DrFond Du Lac, WI 54937 (920) 923‑0788
- 3935 N Lightning DrAppleton, WI 54913 (920) 968‑1790
Group practices
Medicare enrollment lists Peter J. Katz as a member of this group (CMS data updated 2026-10-02).
- Forefront Dermatology SC662 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477725141 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians