DR. LEILEI TENG MD
NPI 1619430865
Hospitalist in New Haven, CT
About Dr. Leilei Teng Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LEILEI TENG MD (NPI 1619430865) is an individual hospitalist provider in New Haven, Connecticut, licensed in Connecticut (69757) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Leilei Teng Md 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 Reassignment
Medicare enrollment records show Leilei Teng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Haven, CT 06510
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Northeast Medical Group Inc
- 1,824 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 2
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.
Physician 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Leilei Teng's NPI number?
The NPI number for Leilei Teng is 1619430865. It was assigned to this individual provider in the NPPES registry on April 12, 2019.
Where is Leilei Teng located?
Leilei Teng practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4242.
What is Leilei Teng's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Leilei Teng enrolled in Medicare?
Yes. Leilei Teng 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 organization bills Medicare for Leilei Teng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leilei Teng reassigns Medicare benefits to Mill Hill Medical Consultants Inc (New Haven, CT). The 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 Leilei Teng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leilei Teng accept?
Health plans from Anthem Blue Cross and Blue Shield list Leilei Teng 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.
When was this NPI record last updated?
The NPPES record for Leilei Teng was last updated on July 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Dr. Leilei Teng, MD · NPI 1619430865
Hospitalist physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since April 12, 2019.
## Identity
- **NPI:** 1619430865 (Entity type: Individual)
- **Enumerated:** April 12, 2019
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 69757 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 20 YORK ST, New Haven, CT 06510-3220
- **Phone:** (203) 688-4242
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Mill Hill Medical Consultants Inc (NPI 1952624769, New Haven, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** July 13, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1619430865) · Data from the CMS NPPES public registry.