Phanthaboon J. Phannavong, PA-C
Physician Assistant · Seattle, WA
Phanthaboon J. Phannavong, PA-C is a physician assistant with a practice address in Seattle, Washington, and NPI 1831850791, issued on Jan 4, 2022. Check the license (Washington PA61358368, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Phanthaboon J. Phannavong
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA61358368 WA
Self-reported in NPPES; status is on the state search - Practice location
- 825 Eastlake Ave E, Seattle, WA 98109
- Phone
- (206) 520-5000
- Enumerated
- Jan 4, 2022
- Record last updated
- Feb 10, 2026
- Medicare enrollment
- Enrolled (PECOS I20221107001245); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 2022
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 825 Eastlake Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Phanthaboon J. Phannavong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA61358368Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average physician assistant in 2024
318 Medicare Part D claims for 101 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium23 claims
- Omeprazole17 claims
- Glipizide16 claims
- Paxlovid14 claims
- Lisinopril12 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.
2 hospitals and group practices
- Virginia Mason Medical CenterSeattle, WA · Acute Care Hospitals5 of 5 stars
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Phanthaboon J. Phannavong among 3,718 physician assistant records in Washington
Phanthaboon J. Phannavong, PA-C is one of 3,718 physician assistant records with a practice address in Washington. 76% 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 83% of them.
- NPI issued2022 · 83% of these records are older, 12% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2022 · median 2017 among the 2,460 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
828 physician assistant records list a practice address in Seattle
They are 828 of the 41,956 NPPES records with a practice address in Seattle, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Seattle → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Holly Anderson, P.A.Seattle, WA 981091457335747
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- Cipriano Gonzalez, PA-CSeattle, WA 981091962595363
- Jeannette Hammond, PACSeattle, WA 981091275640054
- Peter JohnsonSeattle, WA 981091609956671
- Angela Kirk, PA-CSeattle, WA 981091144289265
- Tammy Muller, PA-CSeattle, WA 981091891879342
Common questions
What is Phanthaboon J. Phannavong, PA-C's NPI number?
Phanthaboon J. Phannavong, PA-C's National Provider Identifier (NPI) is 1831850791, issued on Jan 4, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Phanthaboon J. Phannavong, PA-C located?
The NPPES record lists a practice address at 825 Eastlake Ave E, Seattle, WA, 98109. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Phanthaboon J. Phannavong, PA-C's license?
NPPES lists Washington license number PA61358368, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Phanthaboon J. Phannavong, PA-C prescribe under Medicare Part D?
In 2024, Phanthaboon J. Phannavong, PA-C had 318 Medicare Part D claims for 101 beneficiaries; the average among physician assistant prescribers was 830. 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.