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

Dr. James Christopher O'Brien, MD

Individual provider Internal Medicine Physician · NPI 1962465070

Dr. James Christopher O'Brien, MD is a Pulmonary Disease in Farmington, Connecticut. Graduated from New York Medical College in 1975, 51 years ago. Practices with Ear Nose and Throat Institute of Connecticut PLLC, a 25-clinician group and accepts Medicare assignment. Licensed in Connecticut and Massachusetts.

Years since qualifying
51
Trained at
New York Medical College
Licensed in
CT, MA
In the registry since
2006
Specialties on file
4
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

599 Farmington Ave
Farmington, CT 06032-2381
Phone: (860) 284-4950
Fax: (781) 290-0720
Show map & directions

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

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence 40480 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 044652 (CT)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 044652 (CT)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 044652 (CT)

Record details

NPI number1962465070
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 10, 2006
Last updated in NPPESApril 9, 2024
Certification dateApril 9, 2024

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1975 (51 years in practice)
Group practice Ear Nose And Throat Institute Of Connecticut Pllc — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Farmington