Physician Profile
Based in Janesville, WI, David D. Nelsen, MD is listed in the NPI registry under dermatology. David graduated from University of Minnesota Medical School in 2009. Medicare claims data shows David provided 4,783 services to 3,198 patients. The services billed most often include pathology examination of tissue using a microscope, intermediate complexity, destruction of precancer skin growth, 2-14 growths, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
3524 E MILWAUKEE ST
Janesville, WI 53546
Within Dermatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Acne and follicular disorders
Eczema and inflammatory skin disease
Infections and infestations
Pigment, growths, and benign lesions
Skin cancer
Urticaria, itch, and vascular
Autoimmune and connective tissue
Infections
Rashes & allergy
Skin growths
Most searched procedures
Diagnostic procedures
Lesion treatment
Medical dermatology treatment
Cosmetic
Cosmetic and minor surgery
Cosmetic dermatology
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Skin cancer surgery
Skin growths
4,783 services · 3,198 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
816 | As often as other peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
368 | More often than most peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
271 | More often than most peers in Dermatology |
| Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm | Procedure | 11301 |
79 | More often than most peers in Dermatology |
| Shaving of skin growth of face, ears, eyelids, nose, lips, or mouth, 0.6-1.0 cm | Procedure | 11311 |
58 | More often than most peers in Dermatology |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | Procedure | 12032 |
48 | More often than most peers in Dermatology |
| Shaving of skin growth of body, arms, or legs, 1.1-2.0 cm | Procedure | 11302 |
47 | More often than most peers in Dermatology |
| Injection into skin growth, 1-7 growths | Procedure | 11900 |
46 | More often than most peers in Dermatology |
| Shaving of skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less | Procedure | 11310 |
40 | More often than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
39 | Less often than most peers in Dermatology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Nelsen is a dermatologist (skin doctor) in Janesville, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Dr. Nelsen is listed at 3524 E Milwaukee St, Janesville, WI 53546. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (608) 756-7217. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Nelsen's National Provider Identifier is 1417184169. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Nelsen attended University of Minnesota Medical School, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
Dr. Nelsen has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Nelsen performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and destruction of skin growth, 1-14 growths, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nelsen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.