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

Dr. John David McGowan, MD

Individual provider Diagnostic Radiology Physician · NPI 1962480897

Dr. John David McGowan, MD practises Diagnostic Radiology in Lynnwood, Washington. Graduated from Creighton University School of Medicine in 1998, 28 years ago. Practices with Radia Inc P S, a 274-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Alaska, Idaho and Washington.

Years since qualifying
28
Trained at
Creighton University School of Medicine
Licensed in
AK, ID, WA
In the registry since
2005
Specialties on file
3
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

19020 33rd Ave W Ste 210
Lynnwood, WA 98036-4748
Phone: (425) 563-1500
Fax: (425) 563-1501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 203 S Western Ave, Tonasket, WA 98855-8803 — (509) 486-2151

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence MD00043387 (WA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence MEDS6002 (AK)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence M-12327 (ID)

Record details

NPI number1962480897
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 30, 2005
Last updated in NPPESFebruary 23, 2026
Certification dateFebruary 23, 2026

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Radia Inc P S — 274 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations23 on file with Medicare

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 patients2,585
Services billed 5,804 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

  • Overlake Hospital Medical Center & Clinics Hospital · Bellevue, WA · listed as Overlake Hospital Medical Center
  • Swedish Medical Center Hospital · Seattle, WA
  • Asante Rogue Regional Medical Center Hospital · Medford, OR
  • Northwest Specialty Hospital Hospital · Post Falls, ID
  • Providence Santa Rosa Memorial Hospital Hospital · Santa Rosa, CA

Colleagues at Radia Inc P S

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 274 clinicians in the practice; 12 are shown here.

Other providers in Lynnwood