Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Diana Marie Ferdana, APNP, EAMP

Individual provider Nurse Practitioner · NPI 1922212547

MS. Diana Marie Ferdana, APNP, EAMP is a Nurse Practitioner in Seattle, Washington. Qualified in 2012, 14 years ago. Practices with The Polyclinic PLLC, a 366-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
14
Licensed in
WA
In the registry since
2007
Specialties on file
2
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Practice location Address checks out

904 7th Ave
Seattle, WA 98104-1132
Phone: (206) 329-1760
Fax: (206) 860-5466
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence AP60321260 (WA)
Acupuncturist Taxonomy 171100000X · Licence AC00002121 (WA)

Record details

NPI number1922212547
Entity typeIndividual (Type 1)
GenderFemale
Credentials APNP , EAMP
Sole proprietorNo
NPI enumeratedMay 10, 2007
Last updated in NPPESNovember 20, 2025
Certification dateNovember 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice The Polyclinic Pllc — 366 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients91
Services billed 918 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at The Polyclinic PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 366 clinicians in the practice; 12 are shown here.

Other providers in Seattle