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

Dr. Stephan L Cassidy, OD

Individual provider Optometrist · NPI 1679630867

Dr. Stephan L Cassidy, OD is an Optometry in Issaquah, Washington. Graduated from Illinois College of Optometry at Chicago in 1995, 31 years ago. Practices with Stephan Cassidy OD Ps, a 3-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
31
Trained at
Illinois College of Optometry at Chicago
Licensed in
WA
In the registry since
2007
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

450 NW Gilman Blvd Ste 104
Issaquah, WA 98027-2483
Phone: (425) 392-8756
Fax: (425) 391-8631
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 3190 (WA)

Record details

NPI number1679630867
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJanuary 3, 2007
Last updated in NPPESDecember 19, 2007
Mailing address450 Nw Gilman Blvd, Ste 104, Issaquah, WA 98027-2483

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 1995 (31 years in practice)
Group practice Stephan Cassidy Od Ps — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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