NPPES file of Aug 9, 2026

Richard N. Hamilton, MD

Gynecology Physician · Portland, OR

Richard N. Hamilton, MD is a gynecology physician with a practice address in Portland, Oregon, and NPI 1851387484, issued on Sep 20, 2005. Check the license (Oregon MD21544, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851387484
Name
Richard N. Hamilton
Credential
MD
Primary taxonomy
Gynecology Physician 207VG0400X
License number
MD21544 OR
Self-reported in NPPES; status is on the state search
Practice location
9701 SW Barnes RD Ste 150, Portland, OR 97225
Phone
(503) 734-3535
Enumerated
Sep 20, 2005
Record last updated
Jan 29, 2026
Fax
(503) 734-3530
Medicaid ID
288347 OR
Medicare enrollment
Enrolled (PECOS I20040624000304); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 1996
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9701 SW Barnes RD Ste 150

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brooke Andrews, MDGynecology Physician1801391198
  2. Lisa Bayne, FNPFamily Nurse Practitioner1609090398
  3. Sarah Boyles, MDUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1881615102
  4. Laura Epton, PA-CSurgical Physician Assistant1760715312
  5. Kendra Flores, WHNPWomen's Health Nurse Practitioner1265004204
  6. Elizabeth Miller, PA-CSurgical Physician Assistant1306303466

Verify Richard N. Hamilton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD21544
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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61% fewer Medicare Part D claims than the average gynecology physician in 2024

118 Medicare Part D claims for 58 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Richard Hamilton118
  2. Specialty average299

Most prescribed

  1. Estradiol50 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $14.86

1 payment: food and beverage; the largest payer was Tactile Systems Technology Inc. The 1,398 providers of this specialty with any payment received $2,469.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Richard Hamilton$14.86
  2. Specialty average$2,469.88

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Legacy Clinics LLCPortland, OR
  2. Legacy Emanuel Hospital And Health CenterPortland, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gynecology Physician providers in Oregon

There are 64 gynecology physician records in Oregon.

Other gynecology physician records in Oregon

  1. Gina Allison, MDTualatin, OR1710969340
  2. Faye Ameredes, DORoseburg, OR1811066822
  3. Brooke Andrews, MDPortland, OR1801391198
  4. Jacqueline Barbour, MDEugene, OR1821132978
  5. Duane Beard, MDSalem, OR1114921103
  6. Diana Bell, MDPortland, OR1922174507
  7. Richard Beyerlein, MDEugene, OR1932298494
  8. Jane Birschbach, MDBend, OR1164435566
  9. Amy Bruner, M.D.Beaverton, OR1194757708
  10. Gary Burgoine, MDTualatin, OR1184615304

Common questions

What is Richard N. Hamilton, MD's NPI number?

Richard N. Hamilton, MD's National Provider Identifier (NPI) is 1851387484, issued on Sep 20, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Richard N. Hamilton, MD located?

The NPPES record lists a practice address at 9701 SW Barnes RD Ste 150, Portland, OR, 97225. Phone: (503) 734-3535. Providers update this record themselves, so call before visiting.

How can I verify Richard N. Hamilton, MD's license?

NPPES lists Oregon license number MD21544, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Richard N. Hamilton, MD prescribe under Medicare Part D?

In 2024, Richard N. Hamilton, MD had 118 Medicare Part D claims for 58 beneficiaries; the average among gynecology physician prescribers was 299. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.