Dr. Nicholas James Zajdel, MD
- Medicare services, 2024
- 1,382
- Medicare patients, 2024
- 440
- Part D claims, 2024
- 863
- Publications
- 2
- MIPS score, 2024
- 91
- Practice address
- 13800 W North Ave, Brookfield, WI 53005
- Practice phone
- Call (262) 754-4488
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Affiliated Dermatologists SC
Brookfield, Wisconsin
Find Dr. Zajdel's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Nicholas James Zajdel is a dermatologist in Brookfield, Wisconsin
Dr. Zajdel practices at Affiliated Dermatologists SC in Brookfield, Wisconsin.
Dr. Zajdel's NPI, 1629430210, was assigned on March 23, 2016. Dr. Zajdel holds Wisconsin license 70104-20.
- NPI
- 1629430210NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921370750
- NPI enumeration date
- March 23, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (262) 754-4488
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas James Zajdel practices at Affiliated Dermatologists SC in Brookfield, Wisconsin
Dr. Zajdel's primary practice is Affiliated Dermatologists SC, at 13800 W North Ave, Brookfield, WI 53005 in Waukesha County. The practice phone is (262) 754-4488.
- Affiliated Dermatologists SC13800 W North Ave, Brookfield, WI 53005 · Waukesha CountyPhone(262) 754-4488
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nicholas James Zajdel is affiliated with 2 sites of care and 1 medical group
Dr. Zajdel's primary practice is Affiliated Dermatologists SC in Brookfield, Wisconsin. The medical group on file is Affiliated Dermatologists. Dmand AI also links Dr. Zajdel to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nicholas James Zajdel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zajdel practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Affiliated Dermatologists SC | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nicholas James Zajdel is one of 436 dermatologists in Wisconsin
Dermatology is Dr. Zajdel's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Zajdel is licensed in Wisconsin.
Specialties and state licenses
- Dermatology, WisconsinPrimary
Dermatologists near Dr. Zajdel
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nicholas James Zajdel billed Medicare for 1,382 services in 2024
CMS data shows 1,382 Medicare services from Dr. Zajdel across 12 procedure codes in 2024, for 440 Medicare patients. Medicare paid $65,407 for them. Every service was in an office.
Dr. Zajdel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 9282024: 8588%
- Office and hospital visits
- 2023: 5092024: 5243%
Dr. Zajdel compared with the Wisconsin median for dermatologists, 2024
- Dr. Zajdel
- Wisconsin median
- Medicare services
- 1,382vs 1,89327% below
- Medicare patients
- 440vs 51815% below
- Part D claims
- 691vs 51833% above
Medians across 439 dermatologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Zajdel's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Zajdel?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zajdel and other dermatologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas James Zajdel treated 440 Medicare patients in 2024, average age 75
CMS counts 440 Medicare patients who saw Dr. Zajdel in 2024. The largest group is 65 to 74, with 212 patients. 72% of them have high cholesterol, and 65% have high blood pressure. 3% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zajdel's median patient age at 58, with 54% women.
Dr. Zajdel's Medicare patients by age, 2024
Dr. Zajdel's Medicare patients by sex, 2024
- Women22651%
- Men21449%
Chronic conditions among Dr. Zajdel's Medicare patients, 2024
- High cholesterol72%
- High blood pressure65%
- Arthritis43%
- Ischemic heart disease28%
- Chronic kidney disease23%
- Anxiety20%
- Atrial fibrillation19%
- Diabetes19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zajdel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas James Zajdel wrote 863 Medicare Part D claims in 2024
In 2024, Dr. Zajdel wrote 863 Medicare Part D claims for 324 patients. 93% of them were for generic drugs. CMS names the drug for 691 of them, across 16 drugs with 11 or more claims each, at $130,519 in total drug cost. In 2023, CMS named 656 claims across 19 drugs.
Dr. Zajdel's Part D claims by kind of drug, 2024
- Generic799 claims93%
- Brand-name64 claims7%
Dr. Zajdel's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Zajdel's Part D claims, 2024
- Antibiotics4%35 of 863 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6562024: 6915%
Drugs named by CMS: 16 in 2024, 19 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Nicholas James Zajdel scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Zajdel for performance year 2024, reported as part of a group. Dr. Zajdel accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 205 procedures of skin biopsy by Dr. Zajdel, more than 85% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Zajdel's MIPS scores, performance year 2024
- 91of 100Final score
- 90.6of 100Quality
- 40of 100Improvement Activities
- 83of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Zajdel ranks in Medicare procedure volume
- Removal of skin lesions
- 82nd percentile296 procedures
- Skin biopsy
- 85th percentile205 procedures
- Melanoma (skin cancer) excision
- 67th percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nicholas James Zajdel has 2 publications on record
Dmand AI links 2 papers to Dr. Zajdel in 2017. Dr. Zajdel's most frequent co-authors are Tiffany L. Anthony, MD, Sarah Tuttleton Arron, MD, PhD and Gordon Hyeonjin Bae, MD.
Dr. Zajdel's most frequent co-authors
- Tiffany L. Anthony, MD1 shared paper
- Sarah Tuttleton Arron, MD, PhD1 shared paper
- Gordon Hyeonjin Bae, MD1 shared paper
Recent publications by Dr. Zajdel
See who Dr. Zajdel researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zajdel works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nicholas James Zajdel received $1,631 in industry payments from 2017 to 2025
CMS Open Payments shows 21 general payments to Dr. Zajdel from 8 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 76% of the total. Janssen Pharmaceuticals, Inc paid the most, $638.
General payments to Dr. Zajdel by program year, 2017 to 2025
General payments to Dr. Zajdel by kind, 2017 to 2025
- Food and beverage$1,24076%
- Education$39124%
Companies that paid Dr. Zajdel the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas James Zajdel's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nicholas James Zajdel
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nicholas James Zajdel's NPI number?
Dr. Nicholas James Zajdel's NPI number is 1629430210. It was assigned on March 23, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas James Zajdel?
Dr. Nicholas James Zajdel is a dermatologist in Brookfield, Wisconsin. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Nicholas James Zajdel practice?
Dr. Zajdel practices at 13800 W North Ave, Brookfield, WI 53005. Dr. Zajdel's primary practice is Affiliated Dermatologists SC in Brookfield, Wisconsin. Dmand AI also links Dr. Zajdel to 1 group practice or clinic.
What is Dr. Nicholas James Zajdel's office phone number?
The practice phone on file for Dr. Zajdel is (262) 754-4488.
What is Dr. Nicholas James Zajdel's medical license number?
Dr. Zajdel holds Wisconsin license 70104-20.
What medical group is Dr. Nicholas James Zajdel part of?
Dr. Zajdel is linked to Affiliated Dermatologists.
Does Dr. Nicholas James Zajdel accept Medicare?
Yes. CMS data shows Dr. Zajdel billed Medicare for 1,382 services in 2024, and Dr. Zajdel accepts Medicare assignment.
What is Dr. Nicholas James Zajdel's MIPS score?
Dr. Zajdel's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Nicholas James Zajdel see?
CMS counts 440 Medicare patients who saw Dr. Zajdel in 2024, with an average age of 75.
What services does Dr. Nicholas James Zajdel bill to Medicare?
In 2024, Dr. Zajdel's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (11102).
Show 5 more questionsShow fewer questions
What drugs does Dr. Nicholas James Zajdel prescribe most?
In 2024 Medicare Part D data, Dr. Zajdel's most prescribed drugs by claims were Clobetasol Propionate, Ketoconazole and Triamcinolone Acetonide.
Has Dr. Nicholas James Zajdel received payments from drug or device companies?
CMS Open Payments shows $1,631 in general payments to Dr. Zajdel from 8 companies from 2017 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Nicholas James Zajdel been practicing?
Dr. Zajdel graduated from medical school in 2016, 10 years ago.
Does Dr. Nicholas James Zajdel do research?
Dmand AI links 2 publications to Dr. Zajdel.
Who does Dr. Nicholas James Zajdel publish with?
Dr. Zajdel's most frequent co-authors are Tiffany L. Anthony, MD (1 shared paper), Sarah Tuttleton Arron, MD, PhD (1 shared paper) and Gordon Hyeonjin Bae, MD (1 shared paper).
Selling to dermatology practices?
See dermatologists in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card