Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

David B Cowan, MD

Individual provider Family Medicine Physician · NPI 1487763405

David B Cowan, MD is registered under Family Practice in Bainbridge Island, Washington. Graduated from Yale University School of Medicine in 1988, 38 years ago. Practices with Virginia Mason Medical Center, a 867-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
38
Trained at
Yale University School of Medicine
Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1344 Wintergreen Ln NE
Bainbridge Island, WA 98110
Phone: (206) 842-5632
Fax: (206) 842-5992
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 380 Winslow Way E, Bainbridge Island, WA 98110-2424 — (206) 842-5632

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD00027659 (WA)

Record details

NPI number1487763405
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESJune 13, 2018

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Virginia Mason Medical Center — 867 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients668
Services billed 22,692 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Virginia Mason Medical Center Hospital · Seattle, WA
  • St Michael Medical Center Hospital · Silverdale, WA
  • Aleca Home Health Home health agency · Silverdale, WA
  • Chi Franciscan Health At Home Home health agency · University Place, WA
  • Signature Healthcare At Home Home health agency · Federal Way, WA

Colleagues at Virginia Mason Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 867 clinicians in the practice; 12 are shown here.

Other providers in Bainbridge Island