Nicolas A. Nelken, MD
NPI 1396899902ActiveIndividual· Surgery, Vascular Surgery· Honolulu, HI
Surgery, Vascular Surgery (MD) in Honolulu, Hawaii, trained at University of California, San Francisco School of Medicine (class of 1982). In 2024 Medicare paid $9,069 for 41 patients, and Part D covered 86 of their prescriptions, 74% of them generic. Cook Medical LLC was the largest of 2 companies reporting payments in 2025, $54.57 in all, mostly food and beverage.
Overview
| NPI | 1396899902 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 22, 2007 |
| Last updated in NPPES | May 26, 2021 |
| Certified by provider | May 26, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | MD-12257 | HI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Vascular Surgery (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 74 across 30 procedure codes |
| Paid by Medicare | $9,069 |
Part D prescriptions in 2024
| Prescriptions (claims) | 86 · 152 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $13,449 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Vascular Surgery |
Medical group
- Hawaii Permanente Medical Group IncHonolulu, HI · 704 clinicians
Hospital affiliation
- Kaiser Foundation HospitalHonolulu, HI
Industry payments (Open Payments)
- 2025$54.57 · 2 payments from 2 companies
- 2024$29.81 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cook Medical LLC | $27.98 | 1 |
| Inspiremd Ltd | $26.59 | 1 |
What the 2025 payments were for
- Food and Beverage$54.57 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other vascular surgeons in Honolulu
- 1023458700
- 1033303524
- 1053483123
- 1154778249
- 1245611912
- 1306159603
- 1366880098
- 1720043706
- 1851323471
- 1184829558
- 1316047293
- 1346739760
All 21 vascular surgeons in Honolulu · All vascular surgeons in Hawaii