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

Ellen Michaelson MD PC

Organization Hematology (Internal Medicine) Physician · NPI 1245437110

Ellen Michaelson MD PC provides Hematology (Internal Medicine) Physician services in Portland, Oregon. Licensed in Oregon. Registered with an NPI since 2007.

Licensed in
OR
In the registry since
2007
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

2456 NW Northrup St Unit 1-A
Portland, OR 97210-3253 Not confirmed with CMS for 14 years — call before visiting
Phone: (503) 274-0045
Fax: (503) 243-6632
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence MD018281 (OR)

Record details

NPI number1245437110
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Ellen Michaelson — President · (503) 274-0045
NPI enumeratedJuly 2, 2007
Last updated in NPPESJuly 17, 2012
Mailing address2456 Nw Northrup St, Unit 1-A, Portland, OR 97210-3253

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