Quick answers
- Does Richard N. Hamilton accept Medicare assignment?
- Yes. Medicare's clinician data says Richard N. Hamilton accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Richard N. Hamilton see?
- In 2024, CMS data shows 42 Original Medicare patients and 86 services for Richard N. Hamilton. This counts Original Medicare only and measures volume, not quality.
- What is Richard N. Hamilton's NPI number?
- 1851387484. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Richard N. Hamilton, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 42 |
|---|---|
| Services billed to Medicare | 86 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)18 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)13 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure71%
- High cholesterol62%
- Arthritis52%
- Atrial fibrillation36%
- Diabetes31%
- Ischemic heart disease29%
Hospitals where Richard N. Hamilton works
Medicare's Facility Affiliation Data lists Richard N. Hamilton at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Legacy Emanuel Medical CenterPortland, OR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 380007
Practice locations
Addresses where Richard N. Hamilton is enrolled with Medicare (CMS data updated October 2, 2026).
- 24800 SE Stark StGresham, OR 97030 (503) 413‑8988
- 2800 N Vancouver Ave, Suite 230Portland, OR 97227 (503) 413‑4340
- 2801 N Gantenbein AvePortland, OR 97227 (503) 413‑2200
Group practices
Medicare enrollment lists Richard N. Hamilton as a member of these groups (CMS data updated October 2, 2026).
- Legacy Clinics LLC713 clinicians in the group
- Legacy Emanuel Hospital and Health Center238 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Gresham
Clinicians with the same Medicare primary specialty in Gresham, OR — not a recommendation.
Other clinicians in Legacy Clinics LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jefferson Medical College Of Thomas Jefferson University |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851387484 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians