Ryan Kretzer, MD
Neurological Surgery · Tucson, AZNPI 1861545766
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $282,850 of the $401,954 with a category attached, or 70.4%. Globus Medical accounts for 79.5% of it on its own, with 10 other manufacturers making up the rest. Reporting peaked in 2023 at $105,030 and has fallen 52.7% since, to $49,689 in 2025. 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 271 payments — averaging $1483.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Globus Medical$319K
- The Institute Of Musculoskeletal Science And Education$69K
- Camber Spine Technologies LLC$9K
- Spinal Elements, Inc.$4K
- Stryker$276
- Orthofix Medical, Inc.$94
- plus $326 from 5 others
What the payments were for
- Royalty or licence$282,85070%
- Consulting fees$100,05925%
- Speaking & faculty fees$4,0001%
- Travel & lodging$12,0573%
- Food & beverage$2,9891%
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 |
|---|---|---|
| Globus Medical(2 entities) | 218 | $319,494 |
| The Institute Of Musculoskeletal Science And Education | 24 | $68,964 |
| Camber Spine Technologies LLC | 13 | $8,887 |
| Spinal Elements, Inc. | 7 | $3,913 |
| Stryker | 2 | $276 |
| Orthofix Medical, Inc. | 1 | $94 |
| Carlsmed, Inc. | 1 | $89 |
| Getset Surgical Inc | 1 | $89 |
| Philadelphia Medical Management Company LLC | 1 | $84 |
| Johnson & Johnson | 1 | $37 |
| Pfizer | 2 | $27 |
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.
How this compares
$401,954 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.
Other neurological surgery in Tucson
- Richard ChuaTucson$1.3M
- Li-Mei LinTucson$653K
- Julie PilitsisTucson$165K
- Paul LarsonTucson$96K
- Ibrahim AlhalalTucson$53K
- Timothy PuttyTucson$39K
- Ryan AustermanTucson$37K
- Kirsty HamiltonTucson$37K
- Arunit ChughTucson$14K
- Robert SpetzlerPhoenix$12.8M
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.