NPPES file of Aug 9, 2026

Zheryl Baldonado Sounthala, ARNP

Nurse Practitioner · Seattle, WA

Zheryl Baldonado Sounthala, ARNP is a nurse practitioner with a practice address in Seattle, Washington, and NPI 1912588047, issued on Apr 20, 2021. Check the license (Washington AP61148962, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912588047
Name
Zheryl Baldonado Sounthala
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
AP61148962 WA
RN60066995 WA
Self-reported in NPPES; status is on the state search
Practice location
550 17TH Ave FL 6, Seattle, WA 98122
Phone
(206) 861-8550
Enumerated
Apr 20, 2021
Record last updated
Apr 26, 2024
Fax
(206) 861-8551
Medicaid ID
2185119 WA
Medicare enrollment
Enrolled (PECOS I20210908001845); 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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Also registered at 550 17TH Ave FL 6

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

  1. Kelly Chandler, ARNPNurse Practitioner1942714571
  2. John Chen, MDCardiovascular Disease Physician1750745121
  3. James Demas, ARNP, DNPNurse Practitioner1710612858
  4. Sameer Gafoor, MDInterventional Cardiology Physician1003933987
  5. Jennifer Hickey, ARNPNurse Practitioner1093982191
  6. Amy Hillier, PA-CPhysician Assistant1801588868

Verify Zheryl Baldonado Sounthala 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 AP61148962
    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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88% fewer Medicare Part D claims than the average nurse practitioner in 2024

135 Medicare Part D claims for 56 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Zheryl Sounthala135
  2. Specialty average1,109

Most prescribed

  1. Amiodarone Hcl15 claims
  2. Pantoprazole Sodium15 claims
  3. Clopidogrel14 claims
  4. Metoprolol Succinate13 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. Swedish Health ServicesSeattle, WA

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

Zheryl Baldonado Sounthala among 2,308 nurse practitioner records in Washington

Zheryl Baldonado Sounthala, ARNP is one of 2,308 nurse practitioner records with a practice address in Washington. 72% 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 75% of them.

  • NPI issued2021 · 75% of these records are older, 19% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2021 · median 2018 among the 1,301 with a school on file
  • Record last updated2024 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

569 nurse practitioner records list a practice address in Seattle

They are 569 of the 41,956 NPPES records with a practice address in Seattle, and 2,308 nurse practitioner records in Washington.

The 8 nurse practitioner records with the nearest ZIP codes

  1. John Bishop, ARNPSeattle, WA 981221881669752
  2. Sarah Brown, A.R.N.P.-CSeattle, WA 981221134220692
  3. Kenda Bulley, ARNPSeattle, WA 981221609956150
  4. Jormain Cady, ARNPSeattle, WA 981221902944986
  5. Jenny Choi, ARNPSeattle, WA 981221366560997
  6. Janice Ekemo, ARNPSeattle, WA 981221477529394
  7. Kathleen HansonSeattle, WA 981221326124108
  8. Betty Mosley, RNSeattle, WA 981221982646394

Common questions

What is Zheryl Baldonado Sounthala, ARNP's NPI number?

Zheryl Baldonado Sounthala, ARNP's National Provider Identifier (NPI) is 1912588047, issued on Apr 20, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Zheryl Baldonado Sounthala, ARNP located?

The NPPES record lists a practice address at 550 17TH Ave FL 6, Seattle, WA, 98122. Phone: (206) 861-8550. Providers update this record themselves, so call before visiting.

How can I verify Zheryl Baldonado Sounthala, ARNP's license?

NPPES lists Washington license number AP61148962, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Zheryl Baldonado Sounthala, ARNP prescribe under Medicare Part D?

In 2024, Zheryl Baldonado Sounthala, ARNP had 135 Medicare Part D claims for 56 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.