SANJAY AGGARWAL, MD, LLC
NPI 1730377342
Internal Medicine in New Haven, CT
About Sanjay Aggarwal, Md, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SANJAY AGGARWAL, MD, LLC (NPI 1730377342) is a healthcare organization registered as an internal medicine in New Haven, Connecticut and active in the NPI registry since October 2007. The organization holds 3 active CLIA laboratory certificates and lists Sanjay Aggarwal, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sanjay Aggarwal, Md, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
10Medicare enrollment records show 10 clinicians reassign Medicare billing to Sanjay Aggarwal, MD, LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 6 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (10)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA 3
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 07D0954402
Sanjay K Aggarwal MD LLC · New Haven, CTCertificate of Waiver 07D2241855
Sanjay Aggarwal MD · West Haven, CTCertificate of Accreditation 07D2270900
Sanjay Aggarwal, MD, LLC · Milford, CTFrequently 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 Sanjay Aggarwal's NPI number?
The NPI number for Sanjay Aggarwal is 1730377342. It was assigned to this organization in the NPPES registry on October 9, 2007. The provider is doing business as Sanjay Aggarwal, MD, LLC.
Where is Sanjay Aggarwal located?
Sanjay Aggarwal is located at 1427 Chapel St, New Haven, CT 06511. The listed phone number is (203) 865-3880.
What is Sanjay Aggarwal's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sanjay Aggarwal enrolled in Medicare?
Yes. Sanjay Aggarwal is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Sanjay Aggarwal?
According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 2 Medicare specialties reassign their Medicare billing to Sanjay Aggarwal. A 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 the clinician's services. The largest specialties are Nurse Practitioner (9) and Internal Medicine (1). Of these, 3 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Sanjay Aggarwal hold CLIA laboratory certificates?
Yes. 3 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.
When was this NPI record last updated?
The NPPES record for Sanjay Aggarwal was last updated on October 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Sanjay Aggarwal, Md, Llc · NPI 1730377342
Internal Medicine organization in New Haven, Connecticut. Organization record, active in the CMS NPPES registry since October 9, 2007.
## Identity
- **NPI:** 1730377342 (Entity type: Organization)
- **Enumerated:** October 9, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Legal business name:** Sanjay Aggarwal
- **Organization subpart:** No
- **Authorized official:** Sanjay Aggarwal, PRESIDENT
## Practice location
- **Address:** 1427 CHAPEL ST, New Haven, CT 06511-4403
- **Phone:** (203) 865-3880
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 10 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (9), Internal Medicine (1); 3 practice at this address and 6 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 9, 2007
- **Other identifiers:** Medicare PIN C03455 (CT)
- **CLIA laboratory certificates:** 3 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1730377342) · Data from the CMS NPPES public registry.