Karin Danelle Machnau, MD
Dermatology Physician · Scottsdale, AZ
Karin Danelle Machnau, MD is a dermatology physician with a practice address in Scottsdale, Arizona, and NPI 1508852302, issued on Sep 27, 2005. Check the license (Arizona 22446, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karin Danelle Machnau
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 22446 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 14275 N 87TH St, Scottsdale, AZ 85260
- Phone
- (480) 905-8485
- Enumerated
- Sep 27, 2005
- Record last updated
- Nov 7, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (480) 905-7274
- Medicare enrollment
- Enrolled (PECOS I20040202000999); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 350 in Arizona → Look up another NPI →
Also registered at 14275 N 87TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sophia Au Stenger, PA-CPhysician Assistant1396822797
- Fiona Blunt, PA-CMedical Physician Assistant1801336607
- Jared Breese, PA-CPhysician Assistant1619380102
- Karin Brimhall, PA-CPhysician Assistant1255578126
- Clay Forsberg, M.D.Plastic and Reconstructive Surgery Physician1629251004
- Kara Gooding, PA CPhysician Assistant1538155320
Verify Karin Danelle Machnau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 22446Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average dermatology physician in 2024
618 Medicare Part D claims for 321 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Triamcinolone Acetonide172 claims
- Ketoconazole55 claims
- Fluorouracil37 claims
- Clobetasol Propionate35 claims
- Clindamycin Phosphate28 claims
- Valacyclovir24 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 85.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,025.11
49 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Center For Dermatology PLLCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karin Danelle Machnau among 350 dermatology physician records in Arizona
Karin Danelle Machnau, MD is one of 350 dermatology physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1991 · median 2008 among the 241 with a school on file
- Record last updated2019 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Arizona
There are 350 dermatology physician records in Arizona.
All 350 in Arizona → Every provider in Scottsdale → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Shelly Friedman, D.O.Scottsdale, AZ 852601699982611
- Matthew Laffer, D.O.Scottsdale, AZ 852601851736763
- Erica Lau, DOScottsdale, AZ 852601548497217
- Gary McCracken, M.D.Scottsdale, AZ 852601093884843
- Jason Michaels, M.D.Scottsdale, AZ 852601255650073
- Jerold Powers, M.D.Scottsdale, AZ 852601487615407
- Kristine Romine, M.D.Scottsdale, AZ 852601467437152
- Kenneth Steil, D.O.Scottsdale, AZ 852601487186144
Common questions
What is Karin Danelle Machnau, MD's NPI number?
Karin Danelle Machnau, MD's National Provider Identifier (NPI) is 1508852302, issued on Sep 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karin Danelle Machnau, MD located?
The NPPES record lists a practice address at 14275 N 87TH St, Scottsdale, AZ, 85260. Phone: (480) 905-8485. Providers update this record themselves, so call before visiting.
How can I verify Karin Danelle Machnau, MD's license?
NPPES lists Arizona license number 22446, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karin Danelle Machnau, MD prescribe under Medicare Part D?
In 2024, Karin Danelle Machnau, MD had 618 Medicare Part D claims for 321 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Karin Danelle Machnau, MD's MIPS final score?
The 2023 MIPS final score is 85.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.