PROF. BASILE M NJEI MD, PHD, MPH
NPI 1336435965
Internal Medicine - Gastroenterology in New Haven, CT
About Prof. Basile M Njei Md, Phd, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PROF. BASILE M NJEI MD, PHD, MPH (NPI 1336435965) is an individual gastroenterology provider in New Haven, Connecticut, licensed in Connecticut (54218) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Marietta Memorial Hospital, and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Prof. Basile M Njei Md, Phd, Mph is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Basile Njei reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
Gaithersburg, MD 20878
- Reassigned Medicare billing, District of Columbia enrollment
- 340 clinicians in this Medicare group
Cumberland, MD 21502
- Reassigned Medicare billing, Maryland enrollment
- 210 clinicians in this Medicare group
Woodsfield, OH 43793
- Reassigned Medicare billing, Ohio enrollment
- 411 clinicians in this Medicare group
Marietta, OH 45750
- Reassigned Medicare billing, Ohio enrollment
- 247 clinicians in this Medicare group
Chillicothe, OH 45601
- Reassigned Medicare billing, Ohio enrollment
- 763 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Marietta Memorial Hospital
Acute Care Hospitals · Marietta, OHSelby General Hospital
Critical Access Hospitals · Marietta, OHSistersville General Hospital
Critical Access Hospitals · Sistersville, WVPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06510 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Basile Njei's NPI number?
The NPI number for Basile Njei is 1336435965. It was assigned to this individual provider in the NPPES registry on June 22, 2011.
Where is Basile Njei located?
Basile Njei practices at 20 York St, New Haven, CT 06510. The listed phone number is (475) 227-5537.
What is Basile Njei's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Basile Njei enrolled in Medicare?
Yes. Basile Njei is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Basile Njei's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Basile Njei reassigns Medicare benefits to 6 organizations: Yale University (New Haven, CT), Adventist Physician Services, Inc. (Gaithersburg, MD), Upmc Western Maryland Corporation (Cumberland, MD), Marietta Memorial Hospital (Woodsfield, OH), Selby General Hospital (Marietta, OH) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Basile Njei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Basile Njei accept?
Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., CareSource, MedMutual and Molina Healthcare list Basile Njei as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Basile Njei affiliated with any hospitals?
According to CMS data, Basile Njei is affiliated with Marietta Memorial Hospital, Selby General Hospital and Sistersville General Hospital.
When was this NPI record last updated?
The NPPES record for Basile Njei was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Prof. Basile M Njei, MD, PHD, MPH · NPI 1336435965
Gastroenterology physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since June 22, 2011.
## Identity
- **NPI:** 1336435965 (Entity type: Individual)
- **Enumerated:** June 22, 2011
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 54218 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 20 YORK ST, New Haven, CT 06510-3220
- **Phone:** (475) 227-5537
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Yale University (NPI 1124148887, New Haven, CT); Adventist Physician Services, Inc. (NPI 1376623207, Gaithersburg, MD); Upmc Western Maryland Corporation (NPI 1285779884, Cumberland, MD); Marietta Memorial Hospital (NPI 1962106328, Woodsfield, OH); Selby General Hospital (NPI 1124073465, Marietta, OH); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** August 5, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1336435965) · Data from the CMS NPPES public registry.