NPPES file of Aug 9, 2026

Martha E. Duffy, RD

Registered Dietitian · Portland, OR

Martha E. Duffy, RD is a registered dietitian with a practice address in Portland, Oregon, and NPI 1245247170, issued on Aug 2, 2006. Check the license (Oregon 692, as entered in NPPES) with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1245247170
Name
Martha E. Duffy
Credential
RD
Primary taxonomy
Registered Dietitian 133V00000X
License number
692 OR
Self-reported in NPPES; status is on the state search
Practice location
707 SW Gaines St, Portland, OR 97239
Phone
(800) 452-3563
Enumerated
Aug 2, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest registered dietitian records → All 927 in Oregon → Look up another NPI →

Also registered at 707 SW Gaines St

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

  1. Elyse Adler, MSStudent in an Organized Health Care Education/Training Program1396583662
  2. Jessica Adsit, M.S.Genetic Counselor (M.S.)1124340633
  3. Sarah Allen, M.S. CF-SLPSpeech-Language Pathologist1386042604
  4. Daryl Anderson, PHDSpeech-Language Pathologist1417965930
  5. Laurie Armsby, MDPediatric Cardiology Physician1184613960
  6. Kristi Atkins, M.A, CCC-SLPSpeech-Language Pathologist1366702938

Verify Martha E. Duffy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 692    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
Find the Oregon license search

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Martha E. Duffy among 927 registered dietitian records in Oregon

Martha E. Duffy, RD is one of 927 registered dietitian records with a practice address in Oregon. 13% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 89% newer
  • In a Medicare fileNo · 13% of these records are
  • In the CMS Doctors and Clinicians fileNo · 15% of these records are
  • Record last updated2007 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Dietitian providers in Oregon

There are 927 registered dietitian records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 927 in Oregon → Every provider in Portland → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Dawn Barnachea, R.D.Portland, OR 972391386654978
  2. Christin Bregman, R.D.Portland, OR 972391780608372
  3. Deanne Carlisle, RD, MBA, LDPortland, OR 972391194833681
  4. Megan Clark, RD, MHA, MBAPortland, OR 972391548234537
  5. Patricia Fischer, RD LDPortland, OR 972391508972779
  6. James Fox, R.D., L.D.Portland, OR 972391073537924
  7. Teresa Hoos, M.S., R.D.Portland, OR 972391558477174
  8. Shannon Hughes, RD, LDPortland, OR 972391154330595

Common questions

What is Martha E. Duffy, RD's NPI number?

Martha E. Duffy, RD's National Provider Identifier (NPI) is 1245247170, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Martha E. Duffy, RD located?

The NPPES record lists a practice address at 707 SW Gaines St, Portland, OR, 97239. Phone: (800) 452-3563. Providers update this record themselves, so call before visiting.

How can I verify Martha E. Duffy, RD's license?

NPPES lists Oregon license number 692, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.