Marie Ellen Trenhaile, PA-C
Physician Assistant · Federal Way, WA
Marie Ellen Trenhaile, PA-C is a physician assistant with a practice address in Federal Way, Washington, and NPI 1457522187, issued on Mar 20, 2008. Check the license (Washington PA60341536, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marie Ellen Trenhaile
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA60341536 WA
Self-reported in NPPES; status is on the state search - Practice location
- 34515 9TH Ave S, Federal Way, WA 98003
- Phone
- (253) 944-4401
- Enumerated
- Mar 20, 2008
- Record last updated
- Sep 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (253) 968-3278
- Medicaid ID
- 331-8907 WA
- Medicare enrollment
- Enrolled (PECOS I20140609002170); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 34515 9TH Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marie Ellen Trenhaile in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA60341536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average physician assistant in 2024
326 Medicare Part D claims for 207 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone36 claims
- Albuterol Sulfate Hfa25 claims
- Amoxicillin-Clavulanate Potass21 claims
- Cephalexin21 claims
- Cefuroxime18 claims
- Azithromycin17 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
- South Hill Family Medicine PCBonney Lake, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marie Ellen Trenhaile among 3,718 physician assistant records in Washington
Marie Ellen Trenhaile, 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 2008, is newer than 27% of them.
- NPI issued2008 · 27% of these records are older, 70% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2007 · median 2017 among the 2,460 with a school on file
- Record last updated2016 · 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).
48 physician assistant records list a practice address in Federal Way
They are 48 of the 2,770 NPPES records with a practice address in Federal Way, and 3,718 physician assistant records in Washington.
All 3,718 in Washington → Every provider in Federal Way → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Maureen Batterberry, PA CFederal Way, WA 980031962450064
- Maria Detherage, MS, RPACFederal Way, WA 980031720219173
- Lavonne Felton, P.A.Federal Way, WA 980031477601797
- John Gaudino, P.A.-C.Federal Way, WA 980031033306535
- Rayleen Greathouse, PA-CFederal Way, WA 980031952319972
- Cheryll Handy, PA CFederal Way, WA 980031912942871
- Richard Hanson, PA, MPASFederal Way, WA 980031134117153
- Kevin Lafave, PA-CFederal Way, WA 980031265477129
Common questions
What is Marie Ellen Trenhaile, PA-C's NPI number?
Marie Ellen Trenhaile, PA-C's National Provider Identifier (NPI) is 1457522187, issued on Mar 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marie Ellen Trenhaile, PA-C located?
The NPPES record lists a practice address at 34515 9TH Ave S, Federal Way, WA, 98003. Phone: (253) 944-4401. Providers update this record themselves, so call before visiting.
How can I verify Marie Ellen Trenhaile, PA-C's license?
NPPES lists Washington license number PA60341536, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Marie Ellen Trenhaile, PA-C prescribe under Medicare Part D?
In 2024, Marie Ellen Trenhaile, PA-C had 326 Medicare Part D claims for 207 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.