G N Endocrinology Ltd
NPI 1285957266 · Endocrinology, Diabetes & Metabolism Physician · Dekalb, IL
G N Endocrinology Ltd is a Endocrinology, Diabetes & Metabolism Physician organization in Dekalb, IL (NPI 1285957266).
Provider details
- NPI number
- 1285957266
- Entity type
- Organization
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Amer Kassar, Owner, MD(219) 440-5350
- License
- 036124942 (IL)
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
16 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
- 2010-03-05
- Last updated
- 2018-10-10
Frequently asked questions
- What is G N Endocrinology Ltd's NPI number?
- G N Endocrinology Ltd's National Provider Identifier (NPI) is 1285957266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is G N Endocrinology Ltd?
- G N Endocrinology Ltd is classified in the NPPES registry as Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is G N Endocrinology Ltd located?
- G N Endocrinology Ltd's practice location on file with NPPES is Five Kish Hospital Dr, Dekalb, IL 60115-9602.
- What is G N Endocrinology Ltd's phone number?
- The practice phone number listed in the NPPES registry for G N Endocrinology Ltd is (815) 748-8335.
- Who is the authorized official for G N Endocrinology Ltd?
- The authorized official listed on G N Endocrinology Ltd's NPPES record is Amer Kassar, Owner, MD. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is G N Endocrinology Ltd's NPI active?
- Yes — G N Endocrinology Ltd's NPI (1285957266) is active in the NPPES registry as of the last update on 2018-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.