Hai Sun, M.D.
NPI 1952507774ActiveIndividual· Neurological Surgery· New Brunswick, NJ
Neurological Surgery (M.D.) in New Brunswick, New Jersey, trained at Geisel School of Medicine at Dartmouth (class of 2007). Mostly services rather than prescriptions: Medicare paid $43,903 for 36 patients in 2024, with only 16 Part D claims. Brainlab, Inc. was the largest of 7 companies reporting payments in 2025, $3,212 in all, mostly travel and lodging.
Overview
| NPI | 1952507774 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 27, 2007 |
| Last updated in NPPES | Jul 23, 2021 |
| Certified by provider | Jul 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 25MA10662700 | NJ |
| Neurological Surgery | 207T00000X | 208174 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurosurgery (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 36 |
|---|---|
| Services billed | 86 across 32 procedure codes |
| Paid by Medicare | $43,903 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16 · 20 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $523.99 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Geisel School of Medicine at Dartmouth |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical group
- Rutgers Health-Rwj Neurosurgery FacultyNew Brunswick, NJ · 192 clinicians
Hospital affiliation
- Robert Wood Johnson University HospitalNew Brunswick, NJ
Industry payments (Open Payments)
- 2025$3,212 · 15 payments from 7 companies
- 2024$2,925 · 22 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Brainlab, Inc. | $2,098 | 7 |
| Omniscient Neurotechnology America Ltd | $512.58 | 2 |
| Depuy Synthes Sales Inc. | $183.78 | 2 |
| Microvention, Inc. | $163.35 | 1 |
| Novocure Inc. | $160.60 | 1 |
What the 2025 payments were for
- Travel and Lodging$1,923 · 5 payments
- Food and Beverage$1,289 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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