Michael Langworthy, MD
Orthopaedic Surgery · North Dartmouth, MANPI 1841301546
Payments from drug & device makers
Across 292 payments — averaging $2447.29 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Ortho Development Corporation$570K
- Pacira Therapeutics, Inc.$41K
- Heron Therapeutics, Inc.$39K
- UOC USA Inc$32K
- Pacira Pharmaceuticals Incorporated$18K
- Sanofi-aventis U.S. LLC$11K
- plus $4K from 14 others
What the payments were for
- Royalty or licence$559,95978%
- Consulting fees$40,5466%
- Speaking & faculty fees$73,89910%
- Travel & lodging$28,3164%
- Food & beverage$11,8882%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Ortho Development Corporation | 130 | $569,695 |
| Pacira Therapeutics, Inc. | 23 | $41,154 |
| Heron Therapeutics, Inc. | 26 | $38,628 |
| UOC USA Inc | 44 | $32,143 |
| Pacira Pharmaceuticals Incorporated | 16 | $17,649 |
| Sanofi-aventis U.S. LLC | 5 | $11,051 |
| Maxx Orthopedics, Inc. | 10 | $1,256 |
| Kerecis Limited | 6 | $637 |
| Stryker | 9 | $549 |
| Catalyst Orthoscience | 5 | $395 |
| Linkbio Corp | 4 | $330 |
| Integra Lifesciences Corporation | 3 | $249 |
| Orthalign Inc | 2 | $163 |
| Kinamed, Inc. | 2 | $160 |
| Smith+Nephew | 2 | $145 |
| Carbofix Orthopedics Inc | 1 | $95 |
| Convatec Inc. | 1 | $92 |
| Illuminoss Medical, Inc. | 1 | $76 |
| Globus Medical | 1 | $75 |
| Bioventus LLC | 1 | $65 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Balanced Knee System$403,896
- BKS Primary$156,062
- Zilretta$54,906
- Zynrelef$36,794
- U-Star II$15,075
- UTS, Conformity, U-MII, U2 Revision Stem, PSA, USTAR, U2 Knee$10,386
- APONVIE$8,832
- NO PRODUCT DISCUSSED$6,056
- USTAR II$4,673
- BKS Revision II$4,000
- SYNVISC$3,724
- Iovera$3,370
- Kerecis SurgiClose$1,520
- HTX-011$1,500
- Kerecis Omega3 Marigen$419
- Kerecis GraftGuide$380
- Ovation Hip Stem$245
- Balanced Knee Revision System$215
- U2, PSA, Conformity, U-Motion II and USTAR II$188
- U-Star, Conformity, U2$188
How this compares
$714,608 in reported general payments places this provider in the 95th percentile of 542 orthopaedic surgery providers in Massachusetts.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Meloxicam | 269 | $790 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 32 | $235 |
| Oxycodone Hcl | 42 | $171 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 15 | $161 |
| Tramadol Hcl | 24 | $108 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery in North Dartmouth
- Paul TornettaBoston$16.7M
- Thomas ThornhillBoston$12M
- Stephen MurphyRoxbury Crossing$8M
- Andrew FreibergBoston$5.9M
- Jon WarnerBoston$5.5M
- Wolfgang FitzBoston$3.7M
- Young Min KwonBoston$2.8M
- Brian KwonWaltham$1.9M
- Simon ChaoNorth Easton$1.6M
- Scott SigmanNorth Chelmsford$1.4M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.