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

Jennifer O'Brien, MD

Individual provider Hospitalist Physician · NPI 1235354796

Jennifer O'Brien, MD practises Internal Medicine in Greenwood Village, Colorado. Graduated from University of Washington School of Medicine in 2006, 20 years ago. Practices with Critical Care and Pulmonary Consultants, PC, a 149-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
20
Trained at
University of Washington School of Medicine
Licensed in
CO
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

5200 Dtc Pkwy Ste 400
Greenwood Village, CO 80111-2709
Phone: (303) 745-0000
Fax: (303) 773-3101
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 47653 (CO)
Hospitalist Physician Taxonomy 208M00000X · Licence 47653 (CO)

Record details

NPI number1235354796
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2007
Last updated in NPPESNovember 18, 2016

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Critical Care And Pulmonary Consultants, P.C. — 149 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 patients233
Services billed 527 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Colleagues at Critical Care and Pulmonary Consultants, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 149 clinicians in the practice; 12 are shown here.

Other providers in Greenwood Village