JONATHAN CHANG
NPI 1861924755
Colon & Rectal Surgery in Bloomfield, CT
About Jonathan Chang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JONATHAN CHANG (NPI 1861924755) is an individual colon & rectal surgery provider in Bloomfield, Connecticut, licensed in Connecticut (80291) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in South Windsor, and is a graduate of Tufts University School Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Jonathan Chang is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jonathan Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bloomfield, CT 06002
- Reassigned Medicare billing, Connecticut enrollment
- 7 clinicians in this Medicare group
Hartford, CT 06105
- Reassigned Medicare billing, Connecticut enrollment
- 1,186 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06002 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BLOOMFIELD, CT 06002
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 Jonathan Chang's NPI number?
The NPI number for Jonathan Chang is 1861924755. It was assigned to this individual provider in the NPPES registry on March 30, 2017.
Where is Jonathan Chang located?
Jonathan Chang practices at 6 Northwestern Dr Ste 305, Bloomfield, CT 06002. The listed phone number is (860) 242-8591.
What is Jonathan Chang's specialty?
The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.
Is Jonathan Chang enrolled in Medicare?
Yes. Jonathan Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jonathan Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Chang reassigns Medicare benefits to 2 organizations: Colon And Rectal Surgeons Of Greater Hartford, LLC (Bloomfield, CT) and Trinity Health Of New England Provider Network Organization Inc (Hartford, CT). Each 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 Jonathan Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jonathan Chang accept?
Health plans from Anthem Blue Cross and Blue Shield list Jonathan Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Jonathan Chang was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.
# Jonathan Chang · NPI 1861924755
Colon & Rectal Surgery physician in Bloomfield, Connecticut. Individual provider, active in the CMS NPPES registry since March 30, 2017.
## Identity
- **NPI:** 1861924755 (Entity type: Individual)
- **Enumerated:** March 30, 2017
- **Primary specialty:** Colon & Rectal Surgery · taxonomy 208C00000X
- **State license:** 80291 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 6 NORTHWESTERN DR STE 305, Bloomfield, CT 06002-3428
- **Phone:** (860) 242-8591 · **Fax:** (860) 242-2511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Colon And Rectal Surgeons Of Greater Hartford, LLC (NPI 1871556225, Bloomfield, CT); Trinity Health Of New England Provider Network Organization Inc (NPI 1003882812, Hartford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** August 5, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1861924755) · Data from the CMS NPPES public registry.