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Edit this profileAt a glance
- 1165 Northern Blvd, Suite 405, Manhasset, NY 11030
About Dr. Walczyk
John S. Walczyk, M.D. practices dermatology in Manhasset, NY. John is a 1990 graduate of Columbia University College of Physicians and Surgeons. According to Medicare claims data, John cared for 3,890 Medicare patients across 26,197 services. The services billed most often include destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth, and established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more. The provider's National Provider Identifier (NPI) is 1043233166.
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
- (516) 365-8030
- Email not available
Practice Locations
1165 NORTHERN BLVD SUITE 405
Manhasset, NY 11030
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
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
Autoimmune and connective tissue
Infections
Rashes & allergy
Skin growths
Procedures & services
Most searched procedures
Diagnostic procedures
Lesion treatment
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
- Incision and drainage of an abscess
Medical dermatology treatment
Cosmetic
Cosmetic and minor surgery
Cosmetic dermatology
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Skin cancer surgery
Skin growths
Procedures Most Often Billed to Medicare
26,197 services · 3,890 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
20,229 | More than most peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
1,561 | More than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
894 | More than most peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
594 | More than most peers in Dermatology |
| Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm | Procedure | 17262 |
74 | More often than most peers in Dermatology |
| Biopsy of ear | Procedure | 69100 |
45 | More often than most peers in Dermatology |
| Destruction of cancer skin growth of trunk, arms, or legs, 2.1-3.0 cm | Procedure | 17263 |
20 | As often as other peers in Dermatology |
| Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm | Procedure | 17272 |
12 | Less often than most peers in Dermatology |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
1,353 | More than most peers in Dermatology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
1,351 | More than most 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.
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.
Other dermatologists in Manhasset 7
Same specialty, same city.
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1990 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 8
Providers in NY who bill this service to Medicare most often.
Common questions
What kind of doctor is John S. Walczyk?
John S. Walczyk is a dermatologist (skin doctor) in Manhasset, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
What is John S. Walczyk's address?
John S. Walczyk is listed at 1165 Northern Blvd Suite 405, Manhasset, NY 11030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John S. Walczyk?
The number on file is (516) 365-8030. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John S. Walczyk's NPI number?
John S. Walczyk's National Provider Identifier is 1043233166. 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 John S. Walczyk train?
John S. Walczyk attended Columbia University College of Physicians and Surgeons, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has John S. Walczyk been practicing?
John S. Walczyk has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What procedures does John S. Walczyk perform?
According to Medicare billing data, John S. Walczyk 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 John S. Walczyk confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John S. Walczyk. If this is you, claiming it is free.
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