Peter J Katz, MD
Dermatology · Appleton, WI
At a glance
3935 N Lightning Dr, Appleton, WI 54913-6717
Published activity: Melanoma (skin cancer) excision · Removal of nail tissue · Removal of skin lesions. View counts and coverage
NPPES record updated Aug 14, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
3935 N Lightning DrAppleton, WI 54913-6717
Additional reported practice locations
2806 Riverview DrGreen Bay, WI 543136717
Phone: 9204987546
Fax: 9205694129 111 Wisconsin American Dr
Fond Du Lac, WI 549376725
Phone: 9209230788
Fax: 9202730085 W7713 Johnson Ct
Wautoma, WI 549825274
Phone: 9208951004
Fax: 9208951005 1400 Scheuring Rd
De Pere, WI 541151067
Phone: 9209640229
Fax: 9209640248 2351 State Road 44
Oshkosh, WI 549046333
Phone: 9206518855
Fax: 9203850287 2700 Crooks Ave Ste 101
Kaukauna, WI 541303900
Phone: 9205815561
Fax: 9207855511 1620 N Shawano St Ste C
New London, WI 549619318
Phone: 9209823870
Fax: 9209823697
Education & affiliations
- Medical / professional school
- Medical College Of Wisconsin
- Graduation year
- 2007
- CMS specialties
- Dermatology
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Melanoma (skin cancer) excision | 301 |
| Removal of nail tissue | 1-10 |
| Removal of skin lesions | 488 |
| Removal or shaving of skin growth | 1-10 |
| Skin biopsy | 152 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $1,304.07 |
| Education | $5.00 |
Reporting companies
| Company | Amount |
|---|---|
| JANSSEN BIOTECH, INC. | $243.70 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $232.41 |
| ABBVIE INC. | $186.67 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $136.78 |
| UCB, INC. | $125.10 |
| GALDERMA LABORATORIES, L.P. | $103.96 |
| LEO PHARMA INC. | $77.61 |
| AMGEN INC. | $61.16 |
| Other reporting companies | $141.68 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Dermatology
- Taxonomy code
- 207N00000X
- Enumeration date
- Apr 2, 2008
- Record updated
- Aug 14, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207N00000X · Primary
License reported: 53184-20 WI
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
3935 N Lightning DrAppleton, WI 54913-6717
- Phone
- (920) 968-1790
- Fax
- (920) 968-1794
Mailing address
801 YORK STMANITOWOC, WI 542204630
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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