Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Karen Ann O'Connor, CRNP

Individual provider Nurse Practitioner · NPI 1861449191

Mrs. Karen Ann O'Connor, CRNP is a Nurse Practitioner in Rockville, Maryland. Qualified in 1999, 27 years ago. Practices with Usacs Critical Care Medicine Services East, LLC, a 39-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
27
Licensed in
MD
In the registry since
2006
What do these letters mean?
CRNP — Certified Registered Nurse Practitioner
The title Pennsylvania and some other states use for a nurse practitioner.

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Practice location Address checks out

1300 Piccard Dr Ste 202
Rockville, MD 20850-4697
Phone: (240) 686-2300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence R108183 (MD)

Record details

NPI number1861449191
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNP
Sole proprietorNo
NPI enumeratedMay 30, 2006
Last updated in NPPESMarch 29, 2010

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Usacs Critical Care Medicine Services East, Llc — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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