Norwich Endocrinology LLC
NPI 1558418707 · Endocrinology, Diabetes & Metabolism Physician · Norwich, CT
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Norwich Endocrinology LLC is a Endocrinology, Diabetes & Metabolism Physician organization in Norwich, CT (NPI 1558418707).
Provider details
- NPI number
- 1558418707
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Constantin Carseli, Owner(860) 859-3006
- License
- 040484 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-03
- Last updated
- 2023-03-07
Frequently asked questions
- What is Norwich Endocrinology LLC's NPI number?
- Norwich Endocrinology LLC's National Provider Identifier (NPI) is 1558418707, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Norwich Endocrinology LLC?
- Norwich Endocrinology LLC is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Norwich Endocrinology LLC located?
- Norwich Endocrinology LLC's practice location on file with NPPES is 119 Sachem St, Norwich, CT 06360-4128.
- What is Norwich Endocrinology LLC's phone number?
- The practice phone number listed in the NPPES registry for Norwich Endocrinology LLC is (860) 859-3006.
- Does Norwich Endocrinology LLC accept Medicare?
- Norwich Endocrinology LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Norwich Endocrinology LLC?
- The authorized official listed on Norwich Endocrinology LLC's NPPES record is Constantin Carseli, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Norwich Endocrinology LLC's NPI active?
- Yes — Norwich Endocrinology LLC's NPI (1558418707) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.