Kathleen Ann Hughes, MD
Internal Medicine Physician · Marysville, WA
Kathleen Ann Hughes, MD is an internal medicine physician with a practice address in Marysville, Washington, and NPI 1962512996, issued on Aug 31, 2006. Check the license (Washington MD00036550, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Kathleen Ann Hughes
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD00036550 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4420 76TH St NE, Marysville, WA 98270
- Phone
- (360) 651-7497
- Enumerated
- Aug 31, 2006
- Record last updated
- Jun 17, 2026
- Fax
- (360) 651-7479
- Medicaid IDs
- 1023320 WA
8241952 WA - Medicare enrollment
- Enrolled (PECOS I20050323001164); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 4420 76TH St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathleen Ann Hughes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00036550Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
316 Medicare Part D claims for 225 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone49 claims
- Amoxicillin-Clavulanate Potass33 claims
- Cefpodoxime Proxetil20 claims
- Cephalexin17 claims
- Sulfamethoxazole-Trimethoprim16 claims
- Doxycycline Hyclate15 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 2 group practices
- Optum Care Washington PLLCShoreline, WA
- The Polyclinic PLLCSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen Ann Hughes among 3,079 internal medicine physician records in Washington
Kathleen Ann Hughes, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1996 · median 2006 among the 1,852 with a school on file
- Record last updated2026 · 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 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in Marysville
They are 18 of the 874 NPPES records with a practice address in Marysville, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Marysville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Chad Cleven, DOMarysville, WA 982701700987856
- Santosa Ho, MDMarysville, WA 982701053378018
- Amandeep KaurMarysville, WA 982701356775266
- Olga Kennedy, MDMarysville, WA 982701699742122
- Toshiko Magnus, MDMarysville, WA 982701750358875
- Mandeep Saini, MDMarysville, WA 982701912974031
- Brett Schweizer, D.O.Marysville, WA 982701265778849
- Manuel Sierra AscencioMarysville, WA 982701093952582
Common questions
What is Kathleen Ann Hughes, MD's NPI number?
Kathleen Ann Hughes, MD's National Provider Identifier (NPI) is 1962512996, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Ann Hughes, MD located?
The NPPES record lists a practice address at 4420 76TH St NE, Marysville, WA, 98270. Phone: (360) 651-7497. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Ann Hughes, MD's license?
NPPES lists Washington license number MD00036550, 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 Kathleen Ann Hughes, MD prescribe under Medicare Part D?
In 2024, Kathleen Ann Hughes, MD had 316 Medicare Part D claims for 225 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.