Dr. Thorsteinn Skulason, MD

  • Mequon, WI
  • Dermatologist
NPI1275506081PAC ID1759370786
Medicare services, 2024
950
Medicare patients, 2024
345
Part D claims, 2024
800
Industry payments
$2,257
Affiliated sites
2
Practice address
13111 North Port Washington Road, Mequon, WI 53097
Practice phone
Call (262) 243-6127
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Ascension Columbia St. Mary's Hospital - Behavioral Health - Ozaukee

Psychiatric Inpatient Facility · Mequon, Wisconsin

See all 3 affiliations

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Dr. Thorsteinn Skulason is a dermatologist in Mequon, Wisconsin

Dr. Skulason practices at Ascension Columbia St. Mary's Hospital - Behavioral Health - Ozaukee in Mequon, Wisconsin.

Dr. Skulason's NPI, 1275506081, was assigned on February 10, 2006. Dr. Skulason holds Wisconsin license 46417.

NPI and contact details
Medicare PAC ID
1759370786
NPI enumeration date
February 10, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(262) 243-6127
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Thorsteinn Skulason practices at Ascension Columbia St. Mary's Hospital - Behavioral Health - Ozaukee in Mequon, Wisconsin

Dr. Skulason's primary practice is Ascension Columbia St. Mary's Hospital - Behavioral Health - Ozaukee, at 13111 North Port Washington Road, Mequon, WI 53097. The practice phone is (262) 243-6127.

  • Ascension Columbia St. Mary's Hospital - Behavioral Health - Ozaukee
    13111 North Port Washington Road, Mequon, WI 53097Phone(262) 243-6127

Source: Dmand AI Affiliation Data

Dr. Thorsteinn Skulason is affiliated with 2 sites of care and 1 medical group

Dr. Skulason's primary practice is Ascension Columbia St. Mary's Hospital - Behavioral Health - Ozaukee in Mequon, Wisconsin. The medical group on file is Madison Medical Affiliates. Dmand AI also links Dr. Skulason to 1 more group practice or clinic, named with a free account.

Ascension Columbia St. Mary's Hospital - Behavioral Health - OzaukeePsychiatric Inpatient Facility · Mequon, WisconsinPrimary
Madison Medical AffiliatesPrimary care group, Milwaukee, WI1 group practice or clinicName with a free accountParent health systemName with a free account
See all 3 affiliations for Dr. Skulason

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Thorsteinn Skulason's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Skulason practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ascension Columbia St. Mary's Hospital - Behavioral Health - OzaukeeAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thorsteinn Skulason is one of 436 dermatologists in Wisconsin

Dermatology is Dr. Skulason's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Skulason is licensed in Wisconsin.

Specialties and state licenses

  • Dermatology, WisconsinPrimaryLicense 46417 · taxonomy 207N00000X

Dermatologists near Dr. Skulason

Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.

436dermatologists in Wisconsin
8dermatologists in Mequon

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Thorsteinn Skulason billed Medicare for 950 services in 2024

CMS data shows 950 Medicare services from Dr. Skulason across 11 procedure codes in 2024, for 345 Medicare patients. Medicare paid $34,402 for them. Every service was in an office.

Medicare services, 2024950
Medicare patients345
Paid by Medicare$34,402
Procedure codes11

Dr. Skulason's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 6212024: 5935%
Office and hospital visits
2023: 3282024: 3579%

Dr. Skulason compared with the Wisconsin median for dermatologists, 2024

  • Dr. Skulason
  • Wisconsin median
Medicare services
950vs 1,89350% below
Medicare patients
345vs 51833% below
Part D claims
674vs 51830% above

Medians across 439 dermatologists in Wisconsin with Dmand AI profiles that report each measure.

Dr. Skulason'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.

See all procedures by Dr. Skulason

Need commercial claims for Dr. Skulason?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Skulason and other dermatologists in Wisconsin.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Thorsteinn Skulason treated 345 Medicare patients in 2024, average age 75

CMS counts 345 Medicare patients who saw Dr. Skulason in 2024. The largest group is 65 to 74, with 158 patients. 68% of them have high cholesterol, and 65% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Skulason's median patient age at 66, with 51% women.

Medicare patients, 2024345
Average age75
Average risk score1.06
Also on Medicaid14%

Dr. Skulason's Medicare patients by age, 2024

Dr. Skulason's Medicare patients by sex, 2024

  • Women14642%
  • Men19958%

Chronic conditions among Dr. Skulason's Medicare patients, 2024

  1. High cholesterol68%
  2. High blood pressure65%
  3. Arthritis41%
  4. Ischemic heart disease26%
  5. Diabetes19%
  6. Mood disorders18%
  7. Cancer17%
  8. Chronic kidney disease17%

Share of Medicare patients with each condition. A patient can have several.

Dr. Skulason's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women51%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Thorsteinn Skulason wrote 800 Medicare Part D claims in 2024

In 2024, Dr. Skulason wrote 800 Medicare Part D claims for 277 patients. 82% of them were for generic drugs. CMS names the drug for 674 of them, across 20 drugs with 11 or more claims each, at $607,222 in total drug cost. In 2023, CMS named 559 claims across 18 drugs.

Part D claims, 2024800
Drugs named by CMS20
Total drug cost$607,222
Part D patients277

Dr. Skulason's Part D claims by kind of drug, 2024

  • Generic654 claims82%
  • Brand-name146 claims18%

Dr. Skulason'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. Skulason's Part D claims, 2024

  • Antibiotics8%66 of 800 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: 5592024: 67421%

Drugs named by CMS: 20 in 2024, 18 in 2023.

See all prescribing by Dr. Skulason

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. Thorsteinn Skulason ranks in the 80th percentile for removal of skin lesions in Medicare

Dr. Skulason accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 228 procedures of removal of skin lesions by Dr. Skulason, more than 80% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Skulason ranks in Medicare procedure volume

Removal of skin lesions
80th percentile228 procedures
Skin biopsy
71st percentile61 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); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Thorsteinn Skulason received $2,257 in industry payments from 2016 to 2025

CMS Open Payments shows 112 general payments to Dr. Skulason from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Sanofi and Genzyme US Companies paid the most, $499.

General payments to Dr. Skulason by program year, 2016 to 2025

General payments to Dr. Skulason by kind, 2016 to 2025

$2.3Kin total
  • Food and beverage$2,21598%
  • Education$422%

Companies that paid Dr. Skulason the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Skulason

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Thorsteinn Skulason's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Thorsteinn Skulason

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. Thorsteinn Skulason's NPI number?

Dr. Thorsteinn Skulason's NPI number is 1275506081. It was assigned on February 10, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Thorsteinn Skulason?

Dr. Thorsteinn Skulason is a dermatologist in Mequon, Wisconsin. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).

Where does Dr. Thorsteinn Skulason practice?

Dr. Skulason practices at 13111 North Port Washington Road, Mequon, WI 53097. Dr. Skulason's primary practice is Ascension Columbia St. Mary's Hospital - Behavioral Health - Ozaukee in Mequon, Wisconsin. Dmand AI also links Dr. Skulason to 1 group practice or clinic.

What is Dr. Thorsteinn Skulason's office phone number?

The practice phone on file for Dr. Skulason is (262) 243-6127.

What is Dr. Thorsteinn Skulason's medical license number?

Dr. Skulason holds Wisconsin license 46417.

What medical group is Dr. Thorsteinn Skulason part of?

Dr. Skulason is linked to Madison Medical Affiliates.

Does Dr. Thorsteinn Skulason accept Medicare?

Yes. CMS data shows Dr. Skulason billed Medicare for 950 services in 2024, and Dr. Skulason accepts Medicare assignment.

How many Medicare patients does Dr. Thorsteinn Skulason see?

CMS counts 345 Medicare patients who saw Dr. Skulason in 2024, with an average age of 75.

What services does Dr. Thorsteinn Skulason bill to Medicare?

In 2024, Dr. Skulason's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99212) and office visit, established patient (99213).

What drugs does Dr. Thorsteinn Skulason prescribe most?

In 2024 Medicare Part D data, Dr. Skulason's most prescribed drugs by claims were Triamcinolone Acetonide, Tacrolimus and Betamethasone Dipropionate.

Has Dr. Thorsteinn Skulason received payments from drug or device companies?

CMS Open Payments shows $2,257 in general payments to Dr. Skulason from 19 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Thorsteinn Skulason been practicing?

Dr. Skulason graduated from medical school in 1988, 38 years ago.

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