Dr. John Steven Walczyk, MD
- Medicare services, 2024
- 26,197
- Medicare patients, 2024
- 868
- Part D claims, 2024
- 899
- MIPS score, 2024
- 75
- Industry payments
- $327
- Practice address
- 825 Northern Blvd, Great Neck, NY 11021
- Practice phone
- Call (929) 470-5354
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Schweiger Dermatology
Great Neck, New York
Find Dr. Walczyk's professional email, personal email and mobile number
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Dr. John Steven Walczyk is a dermatologist in Great Neck, New York
Dr. Walczyk practices at Schweiger Dermatology in Great Neck, New York.
Dr. Walczyk's NPI, 1043233166, was assigned on July 26, 2006. Dr. Walczyk graduated from Columbia University Vagelos College of Physicians and Surgeons in 1990. Dr. Walczyk holds New York license 191586.
- NPI
- 1043233166NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961393301
- NPI enumeration date
- July 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (929) 470-5354
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Steven Walczyk practices at Schweiger Dermatology in Great Neck, New York
Dr. Walczyk's primary practice is Schweiger Dermatology, at 825 Northern Blvd, Great Neck, NY 11021 in Nassau County. The practice phone is (929) 470-5354.
- Schweiger Dermatology825 Northern Blvd, Great Neck, NY 11021 · Nassau CountyPhone(929) 470-5354
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Steven Walczyk is affiliated with 3 sites of care and 1 medical group
Dr. Walczyk's primary practice is Schweiger Dermatology in Great Neck, New York. The medical group on file is Schweiger Dermatology Group. Dmand AI also links Dr. Walczyk to 1 more physician office and 1 group practice or clinic, each 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. John Steven Walczyk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walczyk practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Schweiger Dermatology | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Steven Walczyk is one of 1,038 dermatologists in New York
Dermatology is Dr. Walczyk's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Walczyk is licensed in New York.
Specialties and state licenses
- Dermatology, New YorkPrimary
Dermatologists near Dr. Walczyk
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. John Steven Walczyk billed Medicare for 26,197 services in 2024
CMS data shows 26,197 Medicare services from Dr. Walczyk across 11 procedure codes in 2024, for 868 Medicare patients. Medicare paid $547,102 for them. Every service was in an office.
Dr. Walczyk's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 21,9232024: 23,4297%
- Office and hospital visits
- 2023: 2,6872024: 2,7683%
Dr. Walczyk compared with the New York median for dermatologists, 2024
- Dr. Walczyk
- New York median
- Medicare services
- 26,197vs 1,01625.8 times
- Medicare patients
- 868vs 3242.7 times
- Part D claims
- 775vs 3342.3 times
Medians across 1,022 dermatologists in New York with Dmand AI profiles that report each measure.
Dr. Walczyk'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walczyk and other dermatologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Steven Walczyk treated 868 Medicare patients in 2024, average age 76
CMS counts 868 Medicare patients who saw Dr. Walczyk in 2024. The largest group is 65 to 74, with 384 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 2% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Walczyk's median patient age at 60, with 44% women.
Dr. Walczyk's Medicare patients by age, 2024
Dr. Walczyk's Medicare patients by sex, 2024
- Women40146%
- Men46754%
Chronic conditions among Dr. Walczyk's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis47%
- Ischemic heart disease35%
- Diabetes26%
- Cancer22%
- Atrial fibrillation21%
- Anxiety18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walczyk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women44%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Steven Walczyk wrote 899 Medicare Part D claims in 2024
In 2024, Dr. Walczyk wrote 899 Medicare Part D claims for 327 patients. 95% of them were for generic drugs. CMS names the drug for 775 of them, across 16 drugs with 11 or more claims each, at $27,708 in total drug cost. In 2023, CMS named 649 claims across 15 drugs.
Dr. Walczyk's Part D claims by kind of drug, 2024
- Generic854 claims95%
- Brand-name45 claims5%
Dr. Walczyk'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. Walczyk's Part D claims, 2024
- Antibiotics11%100 of 899 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: 6492024: 77519%
Drugs named by CMS: 16 in 2024, 15 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. John Steven Walczyk scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Walczyk for performance year 2024, reported individually. Dr. Walczyk accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 3,095 procedures of removal of skin lesions by Dr. Walczyk, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Walczyk ranks in Medicare procedure volume
- Removal of skin lesions
- 99th percentile3,095 procedures
- Skin biopsy
- 99th percentile1,297 procedures
- Removal or shaving of skin growth
- 67th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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)
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Dr. John Steven Walczyk received $327 in industry payments in 2025
CMS Open Payments shows 15 general payments to Dr. Walczyk from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $151.
Companies that paid Dr. Walczyk the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Steven Walczyk graduated from Columbia University Vagelos College of Physicians and Surgeons
Dr. Walczyk graduated from Columbia University Vagelos College of Physicians and Surgeons in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Steven Walczyk's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Steven Walczyk
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. John Steven Walczyk's NPI number?
Dr. John Steven Walczyk's NPI number is 1043233166. It was assigned on July 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Steven Walczyk?
Dr. John Steven Walczyk is a dermatologist in Great Neck, New York. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. John Steven Walczyk practice?
Dr. Walczyk practices at 825 Northern Blvd, Great Neck, NY 11021. Dr. Walczyk's primary practice is Schweiger Dermatology in Great Neck, New York. Dmand AI also links Dr. Walczyk to 1 physician office and 1 group practice or clinic.
What is Dr. John Steven Walczyk's office phone number?
The practice phone on file for Dr. Walczyk is (929) 470-5354.
What is Dr. John Steven Walczyk's medical license number?
Dr. Walczyk holds New York license 191586.
What medical group is Dr. John Steven Walczyk part of?
Dr. Walczyk is linked to Schweiger Dermatology Group.
Does Dr. John Steven Walczyk accept Medicare?
Yes. CMS data shows Dr. Walczyk billed Medicare for 26,197 services in 2024, and Dr. Walczyk accepts Medicare assignment.
What is Dr. John Steven Walczyk's MIPS score?
Dr. Walczyk's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. John Steven Walczyk see?
CMS counts 868 Medicare patients who saw Dr. Walczyk in 2024, with an average age of 76.
What services does Dr. John Steven Walczyk bill to Medicare?
In 2024, Dr. Walczyk's most billed Medicare services were surgery: skin and soft tissue (17003), surgery: skin and soft tissue (17000) and office visit, established patient (99212).
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Where did Dr. John Steven Walczyk go to medical school?
Dr. Walczyk graduated from Columbia University Vagelos College of Physicians and Surgeons in 1990.
What drugs does Dr. John Steven Walczyk prescribe most?
In 2024 Medicare Part D data, Dr. Walczyk's most prescribed drugs by claims were Metronidazole, Triamcinolone Acetonide and Mupirocin.
Has Dr. John Steven Walczyk received payments from drug or device companies?
CMS Open Payments shows $327 in general payments to Dr. Walczyk from 4 companies from 2025 to 2025. The largest total came from Amgen Inc.
How long has Dr. John Steven Walczyk been practicing?
Dr. Walczyk graduated from medical school in 1990, 36 years ago.
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