Gregory Ryan Lamberton, M.D.
NPI 1003094889ActiveIndividual· Urology· Puyallup, WA
Urology (M.D.) in Puyallup, Washington, trained at Loma Linda University School of Medicine (class of 2003). 404 Medicare patients in 2024, $159,298 paid; nearly all of their 1,491 Part D prescriptions were generic (93%). Sumitomo Pharma America, Inc. was the largest of 16 companies reporting payments in 2025, $1,030 in all, mostly food and beverage.
Overview
| NPI | 1003094889 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 4, 2008 |
| Last updated in NPPES | Dec 30, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | MD60101321 | WA |
| Urology | 208800000X | A90402 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Urology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 404 |
|---|---|
| Services billed | 2,402 across 72 procedure codes |
| Paid by Medicare | $159,298 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,491 · 3,217 30-day fills |
|---|---|
| Patients | 396 |
| Total drug cost | $143,698 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Urology |
Medical group
- Multicare Health SystemTacoma, WA · 2,325 clinicians
Hospital affiliations
- Multicare Auburn Medical CenterAuburn, WA
- Multicare Good Samaritan HospitalPuyallup, WA
- Tacoma General Allenmore HospitalTacoma, WA
Industry payments (Open Payments)
- 2025$1,030 · 31 payments from 16 companies
- 2024$570.48 · 15 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sumitomo Pharma America, Inc. | $200.04 | 4 |
| Coloplast Corp | $193.98 | 2 |
| Urogen Pharma, Inc. | $137.20 | 5 |
| Intuitive Surgical, Inc. | $73.50 | 1 |
| Endo USA, Inc. | $71.15 | 3 |
What the 2025 payments were for
- Food and Beverage$1,030 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Urology providers in Puyallup
- 1922112234
- 1437178969
- 1437443348