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

Karen O'Brien, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1497234355

Karen O'Brien, DO practises Emergency Medicine in Fishersville, Virginia. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2018, 8 years ago. Practices with Shenandoah Emergency Medicine Specialists LLC, a 10-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
8
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
VA
In the registry since
2018
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Fishersville, VA

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 1 Cooper Plz, Camden, NJ 08103-1461 — (856) 342-2352

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 0102206485 (VA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1497234355
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedAugust 11, 2018
Last updated in NPPESJuly 19, 2021
Certification dateJuly 15, 2021

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2018 (8 years in practice)
Group practice Shenandoah Emergency Medicine Specialists Llc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients785
Services billed 1,336 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Augusta Health Hospital · Fishersville, VA · listed as Augusta Health Care, Inc

Colleagues at Shenandoah Emergency Medicine Specialists LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10 clinicians in the practice; 7 are shown here.

Other providers in Fishersville