Donald Longjohn, MD
Adult Reconstructive Orthopaedic Surgery · Los Angeles, CANPI 1215949524
Payments from drug & device makers
Across 31 payments — averaging $147.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- KCI USA, Inc.$3K
- Stryker$1K
- Smith+Nephew$170
- Zimmer Biomet$169
- Davol Inc.$142
- Intellijoint Surgical Inc.$108
- plus $36 from 2 others
What the payments were for
- Consulting fees$2,52555%
- Travel & lodging$1223%
- Food & beverage$1,57034%
- Education$3538%
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 |
|---|---|---|
| KCI USA, Inc. | 2 | $2,525 |
| Stryker | 22 | $1,421 |
| Smith+Nephew | 1 | $170 |
| Zimmer Biomet | 2 | $169 |
| Davol Inc. | 1 | $142 |
| Intellijoint Surgical Inc. | 1 | $108 |
| Solventum Corporation | 1 | $21 |
| Innovation Technologies Inc | 1 | $15 |
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.
- MAKO$450
- TRIATHLON$353
- T-Fix$170
- Journey II BCS$170
- PICO 7 Single Use Negative Pressure Wound Therapy$170
- REDAPT Revision Hip System$170
- PROGEL$142
- Persona$141
- Intellijoint HIP$108
How this compares
$4,571 in reported general payments places this provider in the 35th percentile of 136 adult reconstructive orthopaedic surgery providers in California.
See all adult reconstructive orthopaedic surgery providers in California →
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 |
|---|---|---|
| Diclofenac Sodium | 33 | $3,479 |
| Mupirocin | 29 | $128 |
| Amoxicillin | 53 | $99 |
| Celecoxib | 11 | $98 |
| Oxycodone Hcl | 18 | $86 |
| Meloxicam | 16 | $20 |
Paid to pharmacies, not to this prescriber.
Other adult reconstructive orthopaedic surgery in Los Angeles
- William LongLos Angeles$2.8M
- Nathanael HeckmannLos Angeles$778K
- Adam SassoonLos Angeles$381K
- Daniel OakesLos Angeles$296K
- Murray WongLos Angeles$49K
- William MaloneyStanford$11.1M
- James CaillouetteNewport Beach$4.8M
- John DearbornMenlo Park$2.5M
- James HuddlestonStanford$2.2M
- William Bugbeela Jolla$2.2M
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.