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

Margaret A Oppenheimer, MD

Individual provider Internal Medicine Physician · NPI 1598956419

Margaret A Oppenheimer, MD is an Internal Medicine in Bellingham, Washington. Graduated from University of Missouri, Columbia School of Medicine in 2007, 19 years ago. Practices with St Anthonys Physician Organization Hospitalist Services Lc, a 139-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri and Oregon.

Years since qualifying
19
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
MO, OR
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

709 W Orchard Dr Ste 4
Bellingham, WA 98225-1766
Phone: (360) 318-8800
Fax: (360) 318-1085
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10010 Kennerly Rd, Saint Louis, MO 63128-2106 — (314) 525-1328

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD151425 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2026011662 (MO)

Record details

NPI number1598956419
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 6, 2007
Last updated in NPPESApril 27, 2026
Certification dateApril 27, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice St Anthonys Physician Organization Hospitalist Services Lc — 139 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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