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

Colleen E O'Connor, MD

Individual provider Internal Medicine Physician · NPI 1922087154

Colleen E O'Connor, MD is a Hospitalist in Wynnewood, Pennsylvania. Graduated from Tufts University School of Medicine in 2002, 24 years ago. Practices with Main Line Healthcare, a 1,153-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
24
Trained at
Tufts University School of Medicine
Licensed in
PA
In the registry since
2006
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

100 E Lancaster Ave Ste 4303
Wynnewood, PA 19096
Phone: (484) 476-6421
Fax: (484) 476-3149
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD425878 (PA)

Record details

NPI number1922087154
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 16, 2006
Last updated in NPPESJuly 5, 2018
Mailing address100 E Lancaster Ave Ste 4303, Wynnewood, PA 19096-3450

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Main Line Healthcare — 1153 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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