Daniel Chichek Sun, M.D.
NPI 1083097497ActiveIndividual· Orthopaedic Surgery· Boston, MA
Orthopaedic Surgery (M.D.) with Pratt Orthopaedic Associates Inc, practicing in Boston, Massachusetts. 471 Medicare patients in 2024, $134,576 paid; all of their 72 Part D prescriptions were generic. Stryker Corporation was the largest of 6 companies reporting payments in 2025, $2,898 in all, mostly travel and lodging. Lists Melrosewakefield Healthcare and 1 other hospital as hospital affiliations.
Overview
| NPI | 1083097497 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 2, 2015 |
| Last updated in NPPES | Sep 5, 2023 |
| Certified by provider | Apr 30, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 283316 | MA |
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 - Orthopedic Surgery (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 471 |
|---|---|
| Services billed | 2,592 across 41 procedure codes |
| Paid by Medicare | $134,576 |
Part D prescriptions in 2024
| Prescriptions (claims) | 72 · 72 30-day fills |
|---|---|
| Patients | 69 |
| Total drug cost | $425.04 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical group
- Pratt Orthopaedic Associates IncBoston, MA · 28 clinicians
Hospital affiliations
- Melrosewakefield HealthcareMelrose, MA
- Tufts Medical CenterBoston, MA
Other facilities
- All Care Vna-Greater Lynn IncHome health agency · Lynn, MA
- Bayada Home Health Care, IncHome health agency · Canton, MA
- Tufts Medicine Care at HomeHome health agency · Lowell, MA
- Visiting Nurse Association of BostonHome health agency · Dorchester, MA
- Vna Care NetworkHome health agency · Worcester, MA
Industry payments (Open Payments)
- 2025$2,898 · 31 payments from 6 companies
- 2024$958.56 · 17 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $2,542 | 23 |
| Zimmer Biomet Holdings, Inc. | $181.35 | 3 |
| Acera Surgical, Inc. | $51.90 | 2 |
| Aroa Biosurgery Incorporated | $42.11 | 1 |
| Smith+nephew, Inc. | $41.57 | 1 |
What the 2025 payments were for
- Travel and Lodging$1,456 · 6 payments
- Food and Beverage$1,441 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 269 orthopedic surgeons in Boston · All orthopedic surgeons in Massachusetts