MANDEL-WILENTZ DERMATOLOGY PLLC
MANDEL-WILENTZ DERMATOLOGY PLLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1821359670, based in Greenvale, NY. The organization lists 5 taxonomy classifications, with Dermatology Physician recorded as primary.
Getting there
The practice address on file is 45 NORTHERN BLVD, Greenvale, NY 11548. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 184691 | NY | Dermatology Physician primary |
| 184691 | NY | Pediatric Dermatology Physician |
| 184691 | NY | Procedural Dermatology Physician |
| 184691 | NY | MOHS-Micrographic Surgery Physician |
| 184691 | NY | Dermatopathology Physician |
This provider holds licence 184691 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 7012137292
- Enrollment ID
- O20141010001044
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Dermatology covers
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging. NUCC Health Care Provider Taxonomy, code 207N00000X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207N00000X | Dermatology Physician | 184691 | NY | primary |
| 207NP0225X | Pediatric Dermatology Physician Pediatric Dermatology | 184691 | NY | |
| 207NS0135X | Procedural Dermatology Physician Procedural Dermatology | 184691 | NY | |
| 207ND0101X | MOHS-Micrographic Surgery Physician MOHS-Micrographic Surgery | 184691 | NY | |
| 207ND0900X | Dermatopathology Physician Dermatopathology | 184691 | NY |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1821359670 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jun 7, 2012 |
| Last updated | Apr 16, 2026 |
| Status | Active |
| Practice address |
45 NORTHERN BLVD Greenvale, NY 11548 (516) 506-7546 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 2 | 1 | 3 | 5 | 9 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 4 | 1 | 6 | 5 | 9 | 6 | 5 |
Sum = 70 · next multiple of 10 = 70 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.