Catherine Son, MD
Family Medicine Physician · Federal Way, WA
Catherine Son, MD is a family medicine physician with a practice address in Federal Way, Washington, and NPI 1801424726, issued on Mar 27, 2020. Check the license (Washington MD61323141, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Catherine Son
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD61323141 WA
Self-reported in NPPES; status is on the state search - Practice location
- 33431 13TH PL S, Federal Way, WA 98003
- Phone
- (253) 874-7634
- Enumerated
- Mar 27, 2020
- Record last updated
- Jan 17, 2025
- Fax
- (253) 874-7635
- Medicare enrollment
- Enrolled (PECOS I20240129002689); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 33431 13TH PL S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julisa AguilarCase Manager/Care Coordinator1497383426
- Nawaf AlfaouriNurse Practitioner1023716818
- Melissa Avila, WHNP-BC, CNMWomen's Health Nurse Practitioner1598279135
- Jasmine Brar, ARNPNurse Practitioner1659048593
- Patricia Buzzard, RNRegistered Nurse1558899294
- Minh-Y Canh, D.O.Pediatrics Physician1407139496
Verify Catherine Son in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61323141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
275 Medicare Part D claims for 54 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Amlodipine Besylate26 claims
- Atorvastatin Calcium19 claims
- Hydrochlorothiazide16 claims
- Sumatriptan Succinate12 claims
- Trazodone Hcl11 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
- HealthpointFederal Way, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Son among 5,534 family medicine physician records in Washington
Catherine Son, MD 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2009 among the 3,294 with a school on file
- Record last updated2025 · 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).
91 family medicine physician records list a practice address in Federal Way
They are 91 of the 2,770 NPPES records with a practice address in Federal Way, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Federal Way → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alnasir Adatia, DOFederal Way, WA 980031164474227
- Jai Jun Byeon, MDFederal Way, WA 980031386694982
- Jill Fuller, MDFederal Way, WA 980031871576744
- Tina Hawley, M.D.Federal Way, WA 980031699764472
- Nan-Shing Hsu, M.D.Federal Way, WA 980031598731804
- Doug Kim, MDFederal Way, WA 980031720087067
- Vuthy Leng, M.D.Federal Way, WA 980031710952379
- Peter Littlewood, MDFederal Way, WA 980031083607758
Common questions
What is Catherine Son, MD's NPI number?
Catherine Son, MD's National Provider Identifier (NPI) is 1801424726, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Son, MD located?
The NPPES record lists a practice address at 33431 13TH PL S, Federal Way, WA, 98003. Phone: (253) 874-7634. Providers update this record themselves, so call before visiting.
How can I verify Catherine Son, MD's license?
NPPES lists Washington license number MD61323141, 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 Catherine Son, MD prescribe under Medicare Part D?
In 2024, Catherine Son, MD had 275 Medicare Part D claims for 54 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.