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- 14275 N 87Th St, Ste 110, Scottsdale, AZ 85260
About Dr. Machnau
Karin D. Machnau, MD practices dermatology in Scottsdale, AZ. According to Medicare claims data, Karin cared for 2,986 Medicare patients across 6,087 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 destruction of precancer skin growth, 1 growth. The provider's National Provider Identifier (NPI) is 1508852302.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
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
- (480) 905-8485
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
14275 N 87TH ST STE 110
Scottsdale, AZ 85260
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
6,087 services · 2,986 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
2,649 | More than most peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
869 | More than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
306 | More often than most peers in Dermatology |
| Shaving of skin growth of body, arms, or legs, 0.5 cm or less | Procedure | 11300 |
189 | More than most peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
151 | More often than most peers in Dermatology |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
86 | More often than most peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
72 | As often as other peers in Dermatology |
| Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm | Procedure | 17262 |
52 | More often than most peers in Dermatology |
| Shaving of skin growth of scalp, neck, hands, feet, or genitals, 0.5 cm or less | Procedure | 11305 |
27 | More often than most peers in Dermatology |
| Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm | Procedure | 11301 |
26 | As often as other 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 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 29 related providers in 4 groups
Other dermatologists in Scottsdale 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1991 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 7
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Dr. Machnau specialize in?
Dr. Machnau is a dermatologist (skin doctor) in Scottsdale, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Where is Dr. Machnau located?
Dr. Machnau is listed at 14275 N 87Th St Ste 110, Scottsdale, AZ 85260. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Machnau's phone number?
The number on file is (480) 905-8485. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Machnau's NPI number?
Dr. Machnau's National Provider Identifier is 1508852302. 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
Where did Dr. Machnau go to medical school?
Dr. Machnau attended Other, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Machnau been practicing?
Dr. Machnau has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Machnau do most often?
According to Medicare billing data, Dr. Machnau 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. Machnau confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Machnau. If this is you, claiming it is free.
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