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

Dr. Colin Daniel Brien, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1649822347

Dr. Colin Daniel Brien, MD is an Internal Medicine in New Haven, Connecticut. Qualified in 2019, 7 years ago. Practices with Northeast Medical Group Inc, a 1,360-clinician group and accepts Medicare assignment. Licensed in Connecticut and Michigan.

Years since qualifying
7
Licensed in
CT, MI
In the registry since
2019
Specialties on file
2
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

20 York St
New Haven, CT 06510-3220
Phone: (203) 688-4242
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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 72247 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 4351045291 (MI)

Record details

NPI number1649822347
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2019
Last updated in NPPESMay 8, 2023
Certification dateMay 8, 2023
Mailing address20 York St, New Haven, CT 06510-3220

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Northeast Medical Group Inc — 1360 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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