NPPES file of Aug 9, 2026

Sienna Rose Foxton, DO

Family Medicine Physician · Yakima, WA

Sienna Rose Foxton, DO is a family medicine physician with a practice address in Yakima, Washington, and NPI 1992382592, issued on Mar 28, 2021. Check the license (Washington OP61571857, as entered in NPPES) on the Washington Medical Commission; 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
1992382592
Name
Sienna Rose Foxton
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OP61571857 WA
Self-reported in NPPES; status is on the state search
Practice location
314 S 11TH Ave Ste A, Yakima, WA 98902
Phone
(509) 902-8585
Enumerated
Mar 28, 2021
Record last updated
Aug 19, 2024
Medicare enrollment
Enrolled (PECOS I20240903001018); accepts Medicare assignment
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 314 S 11TH Ave Ste A

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

  1. Cecia AcevedoRegistered Dietitian1518510858
  2. Melissa ChungMental Health Counselor1851056386
  3. Sydney ContiNurse Practitioner1437705175
  4. Lauren HohmanPhysician Assistant1134213465
  5. Ahmed NahasFamily Medicine Physician1659734440
  6. Daniel RichmondPhysician Assistant1164762621

Verify Sienna Rose Foxton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP61571857
    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 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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82% fewer Medicare Part D claims than the average family medicine physician in 2024

630 Medicare Part D claims for 46 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Sienna Foxton630
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium48 claims
  2. Potassium Chloride31 claims
  3. Gabapentin27 claims
  4. Venlafaxine Hcl Er25 claims
  5. Ozempic22 claims
  6. Jardiance21 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.

Bills Medicare through one group practice

  1. Yakima Valley Farm Workers ClinicYakima, WA

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

Sienna Rose Foxton among 5,534 family medicine physician records in Washington

Sienna Rose Foxton, DO is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2021 · median 2009 among the 3,294 with a school on file
  • Record last updated2024 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

161 family medicine physician records list a practice address in Yakima

They are 161 of the 3,970 NPPES records with a practice address in Yakima, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. Vicki Black, M.D.Yakima, WA 989021609875038
  2. Roger Bracchi, M.D.Yakima, WA 989021811996127
  3. Nathaniel Davenport, MDYakima, WA 989021871588921
  4. Gray Dawson, M.D.Yakima, WA 989021417937509
  5. John Dawson, M.D.Yakima, WA 989021114985090
  6. Mark Deramo, M.D.Yakima, WA 989021205835576
  7. Katherine Funk, M.D.Yakima, WA 989021093718843
  8. Brent Herr, MDYakima, WA 989021982670881

Common questions

What is Sienna Rose Foxton, DO's NPI number?

Sienna Rose Foxton, DO's National Provider Identifier (NPI) is 1992382592, issued on Mar 28, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Sienna Rose Foxton, DO located?

The NPPES record lists a practice address at 314 S 11TH Ave Ste A, Yakima, WA, 98902. Phone: (509) 902-8585. Providers update this record themselves, so call before visiting.

How can I verify Sienna Rose Foxton, DO's license?

NPPES lists Washington license number OP61571857, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sienna Rose Foxton, DO prescribe under Medicare Part D?

In 2024, Sienna Rose Foxton, DO had 630 Medicare Part D claims for 46 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.