Randall Porter, MD
Neurological Surgery · Phoenix, AZNPI 1730176389
Payments from drug & device makers
What this record shows
The money is spread across several categories — royalties or licence payments (59.7%), consulting fees and speaking fees — rather than concentrated in one kind of arrangement. 18 manufacturers reported payments, led by Alphatec Spine, Inc at 49.5% of the total. Among neurological surgery clinicians in AZ with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 252 payments — averaging $1627.04 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alphatec Spine, Inc$203K
- Globus Medical$128K
- Stryker$22K
- Orthofix Medical, Inc.$19K
- Zimmer Biomet$16K
- Providence Medical Technology, Inc.$9K
- plus $14K from 12 others
What the payments were for
- Royalty or licence$244,95260%
- Consulting fees$115,38328%
- Speaking & faculty fees$23,5506%
- Travel & lodging$20,2005%
- Food & beverage$5,9291%
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 |
|---|---|---|
| Alphatec Spine, Inc | 56 | $203,122 |
| Globus Medical | 81 | $127,603 |
| Stryker | 35 | $22,152 |
| Orthofix Medical, Inc. | 23 | $18,944 |
| Zimmer Biomet | 20 | $15,687 |
| Providence Medical Technology, Inc. | 9 | $8,886 |
| Medtronic | 4 | $8,350 |
| Seaspine Orthopedics Corporation | 12 | $3,758 |
| Highridge Medical LLC | 2 | $328 |
| Spineology Inc. | 1 | $289 |
| Carlsmed, Inc. | 1 | $241 |
| Abbott | 2 | $172 |
| Zap Surgical Systems, Inc. | 1 | $129 |
| Zimvie Inc. | 1 | $95 |
| Carl Zeiss Meditec, Inc. | 1 | $95 |
| Johnson & Johnson | 1 | $88 |
| Centinel Spine, LLC | 1 | $41 |
| Augmedics Inc. | 1 | $34 |
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.
- IdentiTi$136,189
- Other - Miscellaneous$65,180
- Graft Delivery$39,264
- Hedron$22,801
- InstaFill$22,027
- CASCADIA$13,645
- EXCELSIUS$11,274
- 3D Printed PLIF/TLIF$9,250
- PIVOX Oblique Lateral Spinal System$8,320
- HEDRON T$8,229
- CAYMAN$7,500
- MISCELLANEOUS$5,873
- Virage$5,865
- LIF$4,750
- TLIF$4,750
- CASCADIA INTERBODY SYSTEM$3,000
- HEDRON IC$2,583
- PRONE LATERAL$2,500
- RISE-L$2,500
- Regatta Lateral System$2,500
How this compares
$410,013 in reported general payments places this provider in the 90th percentile of 173 neurological surgery providers in Arizona.
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 |
|---|---|---|
| Oxycodone Hcl | 60 | $872 |
| Gabapentin | 66 | $572 |
| Methocarbamol | 43 | $571 |
| Pregabalin | 30 | $459 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 20 | $293 |
| Diclofenac Sodium ErDiclofenac Sodium | 20 | $266 |
| Methylprednisolone | 41 | $218 |
| Hydromorphone Hcl | 14 | $165 |
| Diclofenac Sodium | 15 | $137 |
| SsdSilver Sulfadiazine | 12 | $119 |
| Tramadol Hcl | 29 | $116 |
| Prednisone | 11 | $64 |
| Diazepam | 11 | $32 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Phoenix
- Robert SpetzlerPhoenix$12.8M
- Juan UribePhoenix$6.7M
- Stephen PapadopoulosPhoenix$6M
- Volker SonntagPhoenix$2M
- Jay TurnerPhoenix$1.2M
- Michael LawtonPhoenix$761K
- Bryan LeePhoenix$441K
- Joseph ZabramskiPhoenix$381K
- Francisco PoncePhoenix$292K
- Curtis DickmanPhoenix$260K
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.