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

Individual provider Internal Medicine Physician · NPI 1508060583

Dr. Ryan Cassaday, MD is a Hematology/Oncology in Seattle, Washington. Qualified in 2007, 19 years ago. Practices with The Association of University Physicians, a 3,459-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
19
Licensed in
WA
In the registry since
2007
Specialties on file
2
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

825 Eastlake Ave E
Seattle, WA 98109-4405
Phone: (206) 288-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence MD60158445 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60158445 (WA)

Record details

NPI number1508060583
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2007
Last updated in NPPESJanuary 24, 2014
Mailing addressPo Box 50095, Seattle, WA 98145-5095

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesHEMATOLOGY, INTERNAL MEDICINE
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice The Association Of University Physicians — 3459 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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