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Edit this profileAt a glance
- 3 Medical Plaza Dr, #230, Roseville, CA 95661
About Dr. Nishimura
Karen Y. Nishimura, MD is a healthcare provider in Roseville, CA specializing in dermatology. According to Medicare claims data, Karen cared for 1,480 Medicare patients across 2,996 services. The services billed most often include destruction of precancer skin growth, 2-14 growths, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1730284878.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (916) 797-4766
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
3 MEDICAL PLAZA DR #230
Roseville, CA 95661
Conditions Commonly Evaluated or Treated
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.
Conditions
Autoimmune and connective tissue
Cancer care
Pediatric and genetic
Rashes & allergy
Wounds & skin
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
Infections
Skin growths
Procedures & services
Bladder & bowel
Cosmetic & plastics
Cosmetic dermatology
Diagnostic procedures
- Dermoscopy
- Excisional skin biopsy
- Punch biopsy
- Shave biopsy
- Skin scraping for fungal or mite testing
- Patch testing
- Skin biopsy
Lesion treatment
- Chemical treatment of skin lesions
- Incision and drainage of an abscess
- Intralesional medication injection
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
Medical dermatology treatment
Skin and Scars
Skin cancer surgery
Skin growths
Wound Care
Most searched procedures
Cosmetic
Cosmetic and minor surgery
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Procedures Most Often Billed to Medicare
2,996 services · 1,480 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
1,321 | More often than most peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
268 | As often as other peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
245 | More often than most peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
180 | More often than most peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
138 | As often as other peers in Dermatology |
| Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm | Procedure | 17262 |
46 | More often than most peers in Dermatology |
| Destruction of cancer skin growth of trunk, arms, or legs, 2.1-3.0 cm | Procedure | 17263 |
35 | More often than most peers in Dermatology |
| Punch biopsy, first skin growth | Procedure | 11104 |
30 | More often than most peers in Dermatology |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
15 | Less often than most peers in Dermatology |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | Procedure | 12032 |
11 | 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.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other dermatologists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other dermatologists in Roseville 7
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs Destruction of precancer skin growth, 2-14 growths 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Nishimura's specialty?
Dr. Nishimura is a dermatologist (skin doctor) in Roseville, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Where can I find Dr. Nishimura?
Dr. Nishimura is listed at 3 Medical Plaza Dr #230, Roseville, CA 95661. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Nishimura?
The number on file is (916) 797-4766. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Nishimura's NPI number?
Dr. Nishimura's National Provider Identifier is 1730284878. 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
How long has Dr. Nishimura been practicing?
Dr. Nishimura has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Nishimura known for?
According to Medicare billing data, Dr. Nishimura performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and biopsy of related skin growth, first growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Nishimura confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nishimura. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.