Gregory A. Robertson, M.D.
NPI 1609917418ActiveIndividual· Surgery· Chandler, AZ
Surgery (M.D.) in Chandler, Arizona, trained at Harvard Medical School (class of 1985). 162 Medicare patients in 2024, $68,012 paid; nearly all of their 95 Part D prescriptions were generic (96%). Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $2,301 in all, mostly education.
Overview
| NPI | 1609917418 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 12, 2007 |
| Last updated in NPPES | Dec 6, 2024 |
| Certified by provider | Dec 6, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 17506 | AZ |
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 - General Surgery (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 162 |
|---|---|
| Services billed | 364 across 52 procedure codes |
| Paid by Medicare | $68,012 |
Part D prescriptions in 2024
| Prescriptions (claims) | 95 · 105 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $1,675 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | General Surgery |
Medical group
- Sjhmc Physician ServicesGilbert, AZ · 646 clinicians
Hospital affiliations
- Chandler Regional Medical CenterChandler, AZ
- Mercy Gilbert Medical CenterGilbert, AZ
Industry payments (Open Payments)
- 2025$2,301 · 3 payments from 2 companies
- 2024$9,996 · 8 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $2,150 | 2 |
| Integra Lifesciences Corporation | $151.26 | 1 |
What the 2025 payments were for
- Education$2,000 · 1 payment
- Food and Beverage$301.26 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 general surgeons in Chandler · All general surgeons in Arizona