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

Stephen P Markus MD PC

Organization Family Medicine Physician · NPI 1285809525

Stephen P Markus MD PC provides Family Medicine Physician services in Bellevue, Washington. Licensed in Washington. Registered with an NPI since 2008.

Licensed in
WA
In the registry since
2008
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1540 140th Ave NE Ste 100
Bellevue, WA 98005-4516 Not confirmed with CMS for 18 years — call before visiting
Phone: (425) 644-6048
Fax: (425) 641-2721
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD00021837 (WA)

Record details

NPI number1285809525
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Karen Samson — Billing · (425) 644-6048
NPI enumeratedApril 28, 2008
Last updated in NPPESApril 28, 2008
Mailing address1540 140th Ave Ne, Suite 100, Bellevue, WA 98005-4516

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