DR. RICHARD N HAMILTON MD
NPI 1851387484
Obstetrics & Gynecology - Gynecology in Portland, OR
About Dr. Richard N Hamilton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RICHARD N HAMILTON MD (NPI 1851387484) is an individual gynecology provider in Portland, Oregon, licensed in Oregon (MD21544) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Legacy Emanuel Medical Center, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (1996).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Richard N Hamilton Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Richard Hamilton reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97210
- Reassigned Medicare billing, Oregon enrollment
- 387 clinicians in this Medicare group
Portland, OR 97210
- Reassigned Medicare billing, Oregon enrollment
- 1,248 clinicians in this Medicare group
Portland, OR 97227
- Reassigned Medicare billing, Oregon enrollment
- 719 clinicians in this Medicare group
Portland, OR 97223
- Reassigned Medicare billing, Oregon enrollment
- Medicare enrollment name: Womens Healthcare Associates LLC
- 127 clinicians in this Medicare group
Woodburn, OR 97071
- Reassigned Medicare billing, Oregon enrollment
- 568 clinicians in this Medicare group
Mesa, AZ 85202
- Reassigned Medicare billing, Arizona enrollment
- 12 clinicians in this Medicare group
Dothan, AL 36303
- Reassigned Medicare billing, Alabama enrollment
- 19 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Legacy Emanuel Medical Center
Acute Care Hospitals · Portland, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTLAND, OR 97225
PORTLAND, OR 97225
PORTLAND, OR 97225
PORTLAND, OR 97225
PORTLAND, OR 97225
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Richard Hamilton's NPI number?
The NPI number for Richard Hamilton is 1851387484. It was assigned to this individual provider in the NPPES registry on September 20, 2005.
Where is Richard Hamilton located?
Richard Hamilton practices at 9701 SW Barnes Rd Ste 150, Portland, OR 97225. The listed phone number is (503) 734-3535.
What is Richard Hamilton's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.
Is Richard Hamilton enrolled in Medicare?
Yes. Richard Hamilton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Richard Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Hamilton reassigns Medicare benefits to 7 organizations: Legacy Good Samaritan Hospital And Medical Center (Portland, OR), Legacy Clinics LLC (Portland, OR), Legacy Emanuel Hospital & Health Center (Portland, OR), Women's Healthcare Associates, LLC (Portland, OR), Silverton Health (Woodburn, OR) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Richard Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Richard Hamilton accept?
Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Richard Hamilton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Richard Hamilton affiliated with any hospitals?
According to CMS data, Richard Hamilton is affiliated with Legacy Emanuel Medical Center.
When was this NPI record last updated?
The NPPES record for Richard Hamilton was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Richard N Hamilton, MD · NPI 1851387484
Gynecology physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since September 20, 2005.
## Identity
- **NPI:** 1851387484 (Entity type: Individual)
- **Enumerated:** September 20, 2005
- **Primary specialty:** Obstetrics & Gynecology - Gynecology · taxonomy 207VG0400X
- **State license:** MD21544 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 9701 SW BARNES RD STE 150, Portland, OR 97225-6689
- **Phone:** (503) 734-3535 · **Fax:** (503) 734-3530
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Legacy Good Samaritan Hospital And Medical Center (NPI 1780608216, Portland, OR); Legacy Clinics LLC (NPI 1902827272, Portland, OR); Legacy Emanuel Hospital & Health Center (NPI 1831112358, Portland, OR); Women's Healthcare Associates, LLC (NPI 1346296142, Portland, OR); Silverton Health (NPI 1215347109, Woodburn, OR); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Jefferson Medical College Of Thomas Jefferson University, class of 1996
## Record status
- **NPPES last updated:** January 29, 2026
- **Other identifiers:** Medicaid 288347 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1851387484) · Data from the CMS NPPES public registry.