Gregory Kenneth May, M.D.
Orthopaedic Surgery (M.D.) in Aberdeen, Washington, trained at Creighton University School of Medicine (class of 1990). 601 Medicare patients in 2024, $177,806 paid; nearly all of their 249 Part D prescriptions were generic (97%). Stryker Corporation reported $211.23 in payments in 2025, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1265401533 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 17, 2006 |
| Last updated in NPPES | Jun 20, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD00032541 | WA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in Washington, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Gregory Dale May · Psychology | 1128b1 | Jan 20, 1998 | Yelm, WA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 - Orthopedic Surgery (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 601 |
|---|---|
| Services billed | 6,878 across 102 procedure codes |
| Paid by Medicare | $177,806 |
Part D prescriptions in 2024
| Prescriptions (claims) | 249 · 254 30-day fills |
|---|---|
| Patients | 146 |
| Total drug cost | $3,239 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Creighton University School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Orthopedic Surgery |
| Secondary specialties | Hand Surgery |
Medical group
- Ghch Physician Services, LLCAberdeen, WA · 12 clinicians
Hospital affiliation
- Grays Harbor Community HospitalAberdeen, WA
Other facilities
- Assured Home Health and HospiceHome health agency · Centralia, WA
- Harbors Home Health / HospiceHome health agency · Hoquiam, WA
Industry payments (Open Payments)
- 2025$211.23 · 6 payments from 1 company
- 2024$326.14 · 13 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $211.23 | 6 |
What the 2025 payments were for
- Food and Beverage$211.23 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other orthopedic surgeons in Aberdeen
- 1720151905