Jonathan Chang
NPI 1861924755 · Colon & Rectal Surgery Physician · Bloomfield, CT
Enrolled with Medicare as Practitioner - Colorectal Surgery (proctology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Chang is a Colon & Rectal Surgery Physician provider in Bloomfield, CT (NPI 1861924755).
Provider details
- NPI number
- 1861924755
- Entity type
- Individual
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 80291 (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
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 2400 Tamarack Ave Ste 200South Windsor, CT 06074-5559Phone: (860) 242-8591Fax: (860) 242-2511
Registry dates
- Enumerated
- 2017-03-30
- Last updated
- 2025-08-05
- Certified
- 2025-08-05
Frequently asked questions
- What is Jonathan Chang's NPI number?
- Jonathan Chang's National Provider Identifier (NPI) is 1861924755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Chang's specialty?
- Jonathan Chang is listed in the NPPES registry with a primary specialty of Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Chang located?
- Jonathan Chang's practice location on file with NPPES is 6 Northwestern Dr Ste 305, Bloomfield, CT 06002-3428.
- What is Jonathan Chang's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Chang is (860) 242-8591.
- Does Jonathan Chang accept Medicare?
- Jonathan Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Chang's NPI active?
- Yes — Jonathan Chang's NPI (1861924755) is active in the NPPES registry as of the last update on 2025-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.