Joshua Siu Lim Ng, MDCM, MPH
NPI 1295311462ActiveIndividual· Surgery· Boston, MA
Surgery (MDCM, MPH) in Boston, Massachusetts, trained at McGill University, Faculty of Medicine (class of 2012). Mostly services rather than prescriptions: Medicare paid $112,588 for 396 patients in 2024, with only 13 Part D claims. Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $7,772 in all, mostly education.
Overview
| NPI | 1295311462 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MDCM, MPH |
| Sole proprietor | No |
| NPI issued | Mar 19, 2021 |
| Last updated in NPPES | Aug 11, 2026 |
| Certified by provider | Aug 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 1015951 | MA |
| Surgery, Trauma Surgery | 2086S0127X | 1015951 | MA |
| Surgery, Surgical Critical Care | 2086S0102X | 1015951 | 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 - General Surgery (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 396 |
|---|---|
| Services billed | 853 across 70 procedure codes |
| Paid by Medicare | $112,588 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13 · 13 30-day fills |
|---|---|
| Total drug cost | $147.83 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | McGill University, Faculty of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | General Surgery |
Medical groups
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
- The General Hospital CorporationBoston, MA · 1,267 clinicians
Hospital affiliations
- Massachusetts General HospitalBoston, MA
- North Shore Medical Center -Salem, MA
Industry payments (Open Payments)
- 2025$7,772 · 14 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $7,635 | 13 |
| Davol Inc. | $136.46 | 1 |
What the 2025 payments were for
- Education$5,500 · 3 payments
- Travel and Lodging$2,089 · 8 payments
- Food and Beverage$182.43 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other general surgeons in Boston
- 1023244746
- 1033132303
- 1033152160
- 1063447597
- 1063942209
- 1093970287
- 1124104591
- 1124226766
- 1124411855
- 1134256563
- 1154521367
- 1164413613
All 452 general surgeons in Boston · All general surgeons in Massachusetts