Geoffrey P. Colby, M.D., PH.D.
NPI 1144373739ActiveIndividual· Neurological Surgery· Los Angeles, CA
Neurological Surgery (M.D., PH.D.) in Los Angeles, California, trained at Columbia University College of Physicians and Surgeons (class of 2006). Mostly services rather than prescriptions: Medicare paid $86,080 for 205 patients in 2024, with only 13 Part D claims. Stryker Corporation was the largest of 7 companies reporting payments in 2025, $115,237 in all, mostly consulting fees.
Overview
| NPI | 1144373739 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 19, 2007 |
| Last updated in NPPES | Jun 27, 2025 |
| Certified by provider | Jun 27, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | A149100 | CA |
| Neurological Surgery | 207T00000X | 74356 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurosurgery (AZ); Practitioner - Neurosurgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 205 |
|---|---|
| Services billed | 543 across 49 procedure codes |
| Paid by Medicare | $86,080 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13 · 22 30-day fills |
|---|---|
| Total drug cost | $598.48 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical groups
- Tucson Physician Group Holdings LLCTucson, AZ · 201 clinicians
- The Regents of the University of CaliforniaLos Angeles, CA · 42 clinicians
Hospital affiliations
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
- St Joseph's HospitalTucson, AZ
Industry payments (Open Payments)
- 2025$115,237 · 94 payments from 7 companies
- 2024$118,657 · 120 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $96,450 | 71 |
| Rapid Medical Ltd | $9,548 | 12 |
| Microvention, Inc. | $5,826 | 4 |
| Medtronic, Inc. | $2,558 | 4 |
| Medical Device Business Services, Inc. | $600.00 | 1 |
What the 2025 payments were for
- Consulting Fee$89,175 · 23 payments
- Travel and Lodging$17,419 · 28 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$5,750 · 1 payment
- Food and Beverage$2,893 · 42 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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