Ryan Michael Kretzer, M.D.
NPI 1861545766ActiveIndividual· Neurological Surgery· Tucson, AZ
Neurological Surgery (M.D.) in Tucson, Arizona, trained at Johns Hopkins University School of Medicine (class of 2004). Medicare paid $221,690 for services to 188 patients in 2024. Globus Medical, Inc. was the largest of 2 companies reporting payments in 2025, $49,689 in all, mostly royalties and licenses.
Overview
| NPI | 1861545766 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 22, 2007 |
| Last updated in NPPES | Feb 8, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | P19038 | MD |
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 - Neurosurgery (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 188 |
|---|---|
| Services billed | 610 across 53 procedure codes |
| Paid by Medicare | $221,690 |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Neurosurgery |
Medical group
- Tucson Physician Group Holdings LLCTucson, AZ · 201 clinicians
Hospital affiliation
- St Joseph's HospitalTucson, AZ
Industry payments (Open Payments)
- 2025$49,689 · 28 payments from 2 companies
- 2024$31,322 · 15 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Globus Medical, Inc. | $47,317 | 26 |
| The Institute of Musculoskeletal Science and Education | $2,372 | 2 |
What the 2025 payments were for
- Royalty or License$46,761 · 18 payments
- Consulting Fee$2,250 · 5 payments
- Travel and Lodging$579.70 · 3 payments
- Food and Beverage$97.76 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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