NPPES file of Aug 9, 2026

Katharine Sherrard Taylor Olsen, RDN, CDR, MS

Registered Dietitian · Seattle, WA

Katharine Sherrard Taylor Olsen, RDN, CDR, MS is a registered dietitian with a practice address in Seattle, Washington, and NPI 1679205603, issued on Jun 28, 2022. Check the license (Washington DI61335594, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1679205603
Name
Katharine Sherrard Taylor Olsen
Credential
RDN, CDR, MS
Primary taxonomy
Registered Dietitian 133V00000X
License number
DI61335594 WA
Self-reported in NPPES; status is on the state search
Practice location
1124 Columbia St Ste 400, Seattle, WA 98104
Phone
(206) 215-2440
Enumerated
Jun 28, 2022
Record last updated
Jan 28, 2025
Fax
(206) 215-2457
Medicare enrollment
Enrolled (PECOS I20220901002215); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest registered dietitian records → All 2,134 in Washington → Look up another NPI →

Also registered at 1124 Columbia St Ste 400

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

  1. Eric Bedson, PA-CSurgical Physician Assistant1588312524
  2. Andrea Breuner, PA-CPhysician Assistant1730172586
  3. Mackenzie Brewer, RDRegistered Dietitian1396484655
  4. Eric Carpentier, M.D.Internal Medicine Physician1972852291
  5. May Chang, ARNPNurse Practitioner1174771885
  6. Hou Hsien Chiang, MDEndocrinology, Diabetes & Metabolism Physician1255837100

Verify Katharine Sherrard Taylor Olsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license DI61335594    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 Washington 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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Bills Medicare through one group practice

  1. Swedish Health ServicesSeattle, WA

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

Katharine Sherrard Taylor Olsen among 2,134 registered dietitian records in Washington

Katharine Sherrard Taylor Olsen, RDN, CDR, MS is one of 2,134 registered dietitian records with a practice address in Washington. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 78% of them.

  • NPI issued2022 · 78% of these records are older, 17% newer
  • In a Medicare fileYes · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2021 · median 2014 among the 238 with a school on file
  • Record last updated2025 · 63% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

603 registered dietitian records list a practice address in Seattle

They are 603 of the 41,956 NPPES records with a practice address in Seattle, and 2,134 registered dietitian records in Washington.

All 2,134 in Washington → Every provider in Seattle → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Vickeri Barton, R.D.Seattle, WA 981041518915610
  2. Karen Conger, R.D.Seattle, WA 981041992763288
  3. Alice Dowdy, R.D.Seattle, WA 981041891753653
  4. Catherine Farver, R.D.Seattle, WA 981041972561744
  5. Aliya Haq, R.D.Seattle, WA 981041720046410
  6. Melanie Kurtzbein, R.D.Seattle, WA 981041942268669
  7. Ann Lipkin, RDSeattle, WA 981041811081656
  8. Karen Litalien, R.D.Seattle, WA 981041104874130

Common questions

What is Katharine Sherrard Taylor Olsen, RDN, CDR, MS's NPI number?

Katharine Sherrard Taylor Olsen, RDN, CDR, MS's National Provider Identifier (NPI) is 1679205603, issued on Jun 28, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Katharine Sherrard Taylor Olsen, RDN, CDR, MS located?

The NPPES record lists a practice address at 1124 Columbia St Ste 400, Seattle, WA, 98104. Phone: (206) 215-2440. Providers update this record themselves, so call before visiting.

How can I verify Katharine Sherrard Taylor Olsen, RDN, CDR, MS's license?

NPPES lists Washington license number DI61335594, as entered by the provider. Search the Washington 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. Medicare files from data.cms.gov. 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.