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

Prof. Basile M Njei, MD, PHD, MPH

Individual provider Gastroenterology Physician · NPI 1336435965

Prof. Basile M Njei, MD, PHD, MPH is a Gastroenterology in New Haven, Connecticut. Qualified in 2008, 18 years ago. Practices with Yale University, a 2,618-clinician group and accepts Medicare assignment. Licensed in Connecticut, Delaware, Maryland and Ohio.

Years since qualifying
18
Licensed in
CT, DE, MD, OH
In the registry since
2011
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MPH — Master of Public Health
A graduate degree in population health.

See every abbreviation used in this directory →

Practice location Address checks out

20 York St
New Haven, CT 06510-3220
Phone: (475) 227-5537
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 54218 (CT)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 35134037 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 54218 (CT)
Gastroenterology Physician Taxonomy 207RG0100X · Licence C1-0012777 (DE)
Gastroenterology Physician Taxonomy 207RG0100X · Licence D83058 (MD)

Record details

NPI number1336435965
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD , MPH
Sole proprietorNo
NPI enumeratedJune 22, 2011
Last updated in NPPESAugust 5, 2025
Certification dateAugust 5, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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