Philip A. Hennessey, PA-C
Physician Assistant · Seattle, WA
Philip A. Hennessey, PA-C is a physician assistant with a practice address in Seattle, Washington, and NPI 1992227110, issued on Jul 10, 2017. Check the license (Washington PA60771962, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Philip A. Hennessey
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA60771962 WA
Self-reported in NPPES; status is on the state search - Practice location
- 221 1St Ave W Ste 200, Seattle, WA 98119
- Phone
- (206) 333-4656
- Enumerated
- Jul 10, 2017
- Record last updated
- May 4, 2026
- Fax
- (253) 449-0727
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,718 in Washington → Look up another NPI →
Also registered at 221 1St Ave W Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Philip A. Hennessey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA60771962Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average physician assistant in 2024
280 Medicare Part D claims for 16 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Mirtazapine23 claims
- Duloxetine Hcl22 claims
- Nortriptyline Hcl20 claims
- Trazodone Hcl17 claims
- Lamotrigine15 claims
- Dextroamphetamine-Amphetamine14 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.
Philip A. Hennessey among 3,718 physician assistant records in Washington
Philip A. Hennessey, 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 2017, is newer than 58% of them.
- NPI issued2017 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- 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
- Kathryn Moser, PA-CSeattle, WA 981191225234792
- Chelsea Bajet, PASeattle, WA 981181750005815
- Eric Chang, PA-CSeattle, WA 981181922499870
- Katherine Chatham, P.A.Seattle, WA 981181760526446
- Ariel Farris, PA-CSeattle, WA 981181124787551
- Michelle Glatt, PA-CSeattle, WA 981181740374313
- Samantha Lettenberger, PA-CSeattle, WA 981181962324053
- Jason Mateo, PA-SSeattle, WA 981181982058525
Common questions
What is Philip A. Hennessey, PA-C's NPI number?
Philip A. Hennessey, PA-C's National Provider Identifier (NPI) is 1992227110, issued on Jul 10, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Philip A. Hennessey, PA-C located?
The NPPES record lists a practice address at 221 1St Ave W Ste 200, Seattle, WA, 98119. Phone: (206) 333-4656. Providers update this record themselves, so call before visiting.
How can I verify Philip A. Hennessey, PA-C's license?
NPPES lists Washington license number PA60771962, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Philip A. Hennessey, PA-C prescribe under Medicare Part D?
In 2024, Philip A. Hennessey, PA-C had 280 Medicare Part D claims for 16 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.