DR. PHYLLIS ANNE COWAN DO
NPI 1578978151
Emergency Medicine in Port Angeles, WA
About Dr. Phyllis Anne Cowan Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PHYLLIS ANNE COWAN DO (NPI 1578978151) is an individual emergency medicine provider in Port Angeles, Washington, licensed in Washington (OP60732394) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS, is affiliated with Pecos County Memorial Hospital, and is a graduate of Arizona College Of Osteopathic Medicine Mid Western University (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Phyllis Anne Cowan Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
8Medicare enrollment records show Phyllis Cowan reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sedro Woolley, WA 98284
- Reassigned Medicare billing, Washington enrollment
- 139 clinicians in this Medicare group
Arlington, WA 98223
- Reassigned Medicare billing, Washington enrollment
- 519 clinicians in this Medicare group
Parkland, WA 98444
- Reassigned Medicare billing, Washington enrollment
- 105 clinicians in this Medicare group
Toppenish, WA 98948
- Reassigned Medicare billing, Washington enrollment
- 55 clinicians in this Medicare group
Sunnyside, WA 98944
- Reassigned Medicare billing, Washington enrollment
- 64 clinicians in this Medicare group
Las Cruces, NM 88011
- Reassigned Medicare billing, New Mexico enrollment
- 183 clinicians in this Medicare group
Hobbs, NM 88240
- Reassigned Medicare billing, New Mexico enrollment
- 119 clinicians in this Medicare group
Fort Stockton, TX 79735
- Reassigned Medicare billing, Texas enrollment
- Also billed through NPI 1386400232 (Texas)
- 51 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Pecos County Memorial Hospital
Critical Access Hospitals · Fort Stockton, TXMulticare Good Samaritan Hospital
Acute Care Hospitals · Puyallup, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Phyllis Cowan's NPI number?
The NPI number for Phyllis Cowan is 1578978151. It was assigned to this individual provider in the NPPES registry on June 23, 2014.
Where is Phyllis Cowan located?
Phyllis Cowan practices at 939 Caroline St, Port Angeles, WA 98362. The listed phone number is (360) 417-7724.
What is Phyllis Cowan's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Phyllis Cowan enrolled in Medicare?
Yes. Phyllis Cowan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Phyllis Cowan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Phyllis Cowan reassigns Medicare benefits to 8 organizations: Sound Physicians Emergency Medicine Of Washington PLLC (Sedro Woolley, WA), Northwest Emergency Physicians LLC (Arlington, WA), Western Washington Emergency Physicians PLLC (Parkland, WA), Olney Emergency Group, A Professional LLC (Toppenish, WA), Sunnyside Emergency Group A Professional LLC (Sunnyside, WA) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Phyllis Cowan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Phyllis Cowan accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and UnitedHealthcare list Phyllis Cowan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Phyllis Cowan affiliated with any hospitals?
According to CMS data, Phyllis Cowan is affiliated with Pecos County Memorial Hospital and Multicare Good Samaritan Hospital.
When was this NPI record last updated?
The NPPES record for Phyllis Cowan was last updated on August 24, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Phyllis Anne Cowan, DO · NPI 1578978151
Emergency Medicine physician in Port Angeles, Washington. Individual provider, active in the CMS NPPES registry since June 23, 2014.
## Identity
- **NPI:** 1578978151 (Entity type: Individual)
- **Enumerated:** June 23, 2014
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** OP60732394 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 939 CAROLINE ST, Port Angeles, WA 98362-3909
- **Phone:** (360) 417-7724 · **Fax:** (360) 452-5772
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Sound Physicians Emergency Medicine Of Washington PLLC (NPI 1629532064, Sedro Woolley, WA); Northwest Emergency Physicians LLC (NPI 1235172370, Arlington, WA); Western Washington Emergency Physicians PLLC (NPI 1801352505, Parkland, WA); Olney Emergency Group, A Professional LLC (NPI 1386108868, Toppenish, WA); Sunnyside Emergency Group A Professional LLC (NPI 1033529367, Sunnyside, WA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Arizona College Of Osteopathic Medicine Mid Western University, class of 2014
## Record status
- **NPPES last updated:** August 24, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1578978151) · Data from the CMS NPPES public registry.