FELDERMAN DERMATOLOGY LLC
FELDERMAN DERMATOLOGY LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003140765, based in New York, NY. It is classified under Specialist.
Getting there
Here is what surrounds this office in New York, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.32 mi away. There is EV charging 0.40 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 373 ft away, served by Madison Avenue & East 79th Street. A pharmacy sits 0.23 mi from the entrance (Caligor Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 764 ft away.
Getting here and what is nearby
Transit East 79 Street & Madison Avenue 220 ft ~1 min
Transit East 79th Street & Madison Ave 311 ft ~2 min
Transit Madison Avenue & East 79th Street 373 ft ~2 min
Restaurant Tokugawa 399 ft ~2 min
1022 Madison Avenue
Mo-Su 12:00-15:00, 17:00-22:00
Restaurant Serafina Fabulous Pizza 404 ft ~2 min
Coffee E.A.T. 605 ft ~3 min
Hotel The Mark 614 ft ~3 min
Hotel The Mark 614 ft ~3 min
Pharmacy Eisler Chemists 634 ft ~3 min
1142 Lexington Avenue, 10075
Mo-Fr 09:00-19:00; Sa 09:00-17:00
Restaurant Burger One 656 ft ~3 min
1150 Lexington Avenue
Mo-Fr 06:00-20:00; Sa 07:00-17:00; Su 08:00-17:00
Coffee Café Carlyle 749 ft ~3 min
Coffee Angelina Paris 764 ft ~3 min
1121 Lexington Avenue, 10075
Mo-Fr 07:00-19:00; Sa, Su 09:00-18:00
Hotel The Carlyle 713 ft ~3 min
Pharmacy Duane Reade 931 ft ~4 min
1091 Lexington Avenue, 10075
00:00-24:00 open "Store" || Mo-Fr 08:00-20:00; Sa 09:00-18:00; Su 10:00-17:00 open "Pharmacy"
Parking Metropolitan Museum 0.20 mi ~5 min
Grocery D'Agostino 0.20 mi ~4 min
Lexington Avenue
Convenience East Side Smoke Shop 0.21 mi ~5 min
1390 3rd Avenue, 10075
Pharmacy Caligor Pharmacy 0.23 mi ~5 min
1226 Lexington Avenue
Mo-Fr 09:00-18:00; Sa 10:00-16:00
Grocery Gristedes 0.24 mi ~5 min
1365 3rd Avenue, 10075
Mo-Sa 06:00-24:00; Su 07:00-23:00
EV charging ChargePoint 0.25 mi ~6 min
Parking 0.25 mi ~5 min
Convenience Freedom Market 0.26 mi ~6 min
Convenience Marche Madison 0.26 mi ~6 min
931 Madison Avenue
Grocery Gristedes 0.27 mi ~6 min
1450 3rd Avenue, New York 10028
Mo-Sa 07:00-22:00;Su 08:00-22:00
Parking 0.32 mi ~7 min
EV charging ChargePoint 0.37 mi ~8 min
EV charging ChargePoint 0.40 mi ~8 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 1159201 | NY | Specialist primary |
This provider holds licence 1159201 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
- 8628118080
- Enrollment ID
- O20091215000379
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 Specialist covers
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree. NUCC Health Care Provider Taxonomy, code 174400000X
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 | 1003140765 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 29, 2009 |
| Last updated | Dec 18, 2024 |
| Status | Active |
| Practice address |
74 E 79TH ST APT 1B New York, NY 10075 (212) 734-0091 Fax (212) 861-8456 |
| Other names |
Lenora Felderman Former Legal Name |
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 | 0 | 0 | 3 | 1 | 4 | 0 | 7 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 4 | 0 | 7 | 3 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
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.