Phyllis Anne Cowan, DO
Emergency Medicine Physician · Port Angeles, WA
Phyllis Anne Cowan, DO is an emergency medicine physician with a practice address in Port Angeles, Washington, and NPI 1578978151, issued on Jun 23, 2014. Check the license (Washington OP60732394, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Phyllis Anne Cowan
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- OP60732394 WA
009915 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 939 Caroline St, Port Angeles, WA 98362
- Phone
- (360) 417-7724
- Enumerated
- Jun 23, 2014
- Record last updated
- Aug 24, 2022
- Fax
- (360) 452-5772
- Medicare enrollment
- Enrolled (PECOS I20170726003274); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2014
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,459 in Washington → Look up another NPI →
Also registered at 939 Caroline St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jan Adams, MDEmergency Medicine Physician1548221096
- Meghan Ahearn, M.D.Emergency Medicine Physician1568754943
- Nancy Ahlstrom, MDInternal Medicine Physician1962431122
- Lealyn Alin-Alin, NACNurse's Aide1922870831
- Rudo Ambayi, M.DHospitalist Physician1831381011
- Pamela Arnott, RNRegistered Nurse1164638722
Verify Phyllis Anne Cowan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP60732394Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average emergency medicine physician in 2024
234 Medicare Part D claims for 149 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Azithromycin25 claims
- Cephalexin24 claims
- Methylprednisolone20 claims
- Prednisone20 claims
- Ondansetron Odt18 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 3 group practices
- Northwest Emergency Physicians LLCRichland, WA
- Pecos County Memorial Hospital DistrictFort Stockton, TX
- Western Washington Emergency Physicians PLLCTacoma, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Phyllis Anne Cowan among 1,459 emergency medicine physician records in Washington
Phyllis Anne Cowan, DO is one of 1,459 emergency medicine physician records with a practice address in Washington. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 75% of them.
- NPI issued2014 · 75% of these records are older, 22% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2014 · median 2010 among the 851 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 emergency medicine physician records list a practice address in Port Angeles
They are 14 of the 1,273 NPPES records with a practice address in Port Angeles, and 1,459 emergency medicine physician records in Washington.
All 1,459 in Washington → Every provider in Port Angeles → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jan Adams, MDPort Angeles, WA 983621548221096
- Meghan Ahearn, M.D.Port Angeles, WA 983621568754943
- Bradley Bringgold, M.D.Port Angeles, WA 983621205802824
- Stephen Churchley, MDPort Angeles, WA 983621285602706
- Gregory Harrah, MDPort Angeles, WA 983621437106747
- Josiah Hill, MDPort Angeles, WA 983621881125433
- R Kennedy, MDPort Angeles, WA 983621447228960
- Robert Lewis, M.D.Port Angeles, WA 983621083949325
Common questions
What is Phyllis Anne Cowan, DO's NPI number?
Phyllis Anne Cowan, DO's National Provider Identifier (NPI) is 1578978151, issued on Jun 23, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Phyllis Anne Cowan, DO located?
The NPPES record lists a practice address at 939 Caroline St, Port Angeles, WA, 98362. Phone: (360) 417-7724. Providers update this record themselves, so call before visiting.
How can I verify Phyllis Anne Cowan, DO's license?
NPPES lists Washington license number OP60732394, 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 Phyllis Anne Cowan, DO prescribe under Medicare Part D?
In 2024, Phyllis Anne Cowan, DO had 234 Medicare Part D claims for 149 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.