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DARTMOUTH ENDOCRINOLOGY, DIABETES AND METABOLISM, LLC
NPI 1669669982
Internal Medicine - Endocrinology, Diabetes & Metabolism in Avon, CT

Active since October 01, 2007
44 DALE RD STE 201, AVON, CT 06001(860) 679-0234(860) 606-0060 Get Directions Write a Review

NPPES record last updated: December 13, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dartmouth Endocrinology, Diabetes And Metabolism, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DARTMOUTH ENDOCRINOLOGY, DIABETES AND METABOLISM, LLC (NPI 1669669982) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Avon, Connecticut and active in the NPI registry since October 2007. The organization lists Gregory J Bombassei, Owner, as its authorized official.

NPPES Registry Identity

NPI1669669982
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameDARTMOUTH ENDOCRINOLOGY LLC
Location Address44 DALE RD STE 201Avon, CT 06001-4351
Mailing Address44 Dale Rd Ste 201Avon, CT 06001-4351 · (860) 679-0234 · Fax (860) 606-0060
Phone(860) 679-0234
Fax(860) 606-0060
Organization SubpartNo
Authorized OfficialGregory J BombasseiOwner · (860) 679-0234
Enumeration DateOctober 1, 2007
Last NPPES UpdateDecember 13, 2023
NPPES CertifiedDecember 13, 2023
✔ NPI 1669669982 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CT · 032434
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
44 DALE RD STE 201, Avon, CT 06001
Open in Google Maps ↗

Other Names 1

Doing Business AsDartmouth Endocrinology, Diabetes And Metabolism, Llc

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dartmouth Endocrinology, Diabetes And Metabolism, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Dartmouth Endocrinology, Diabetes And Metabolism, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Gregory Bombassei, MD
Endocrinology
NPI 1962582718
44 DALE RD STE 201
Avon, CT 06001
(860) 679-0234
✔ PECOS✔ Accepts MedicareSame address

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

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 07D1031984

Dartmouth Endocrinology, Diabetes · Avon, CT
Expired · Oct 13, 2026
CLIA Number07D1031984
Laboratory TypePhysician Office
Certificate Effective DateOctober 14, 2024
Certificate Expiration DateOctober 13, 2026
Laboratory DirectorGregory J. Bombassei, MD
Laboratory Phone(860) 679-0234
Laboratory LocationDartmouth Endocrinology, Diabetes44 Dale Road, Suite 201, Avon, CT 06001
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Dartmouth Endocrinology LLC's NPI number?

The NPI number for Dartmouth Endocrinology LLC is 1669669982. It was assigned to this organization in the NPPES registry on October 1, 2007. The provider is doing business as Dartmouth Endocrinology, Diabetes And Metabolism, LLC.

Where is Dartmouth Endocrinology LLC located?

Dartmouth Endocrinology LLC is located at 44 Dale Rd Ste 201, Avon, CT 06001. The listed phone number is (860) 679-0234.

What is Dartmouth Endocrinology LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Dartmouth Endocrinology LLC enrolled in Medicare?

Yes. Dartmouth Endocrinology LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dartmouth Endocrinology LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Endocrinology) reassigns their Medicare billing to Dartmouth Endocrinology LLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Dartmouth Endocrinology LLC was last updated on December 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.