Tsunkang Chiang, MD
Ophthalmology · Merrillville, IN
At a glance
8679 Connecticut St Ste A, Merrillville, IN 46410-6383
NPPES record updated Sep 14, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
8679 Connecticut St Ste AMerrillville, IN 46410-6383
Additional reported practice locations
15255 S 94Th Ave Ste 202EOrland Park, IL 604623810
Phone: 7083641700
Fax: 7083641717 963 N 129Th Infantry Dr Ste 130
Joliet, IL 604353103
Phone: 8157441812
Fax: 7087441589 4930 W 95Th St
Oak Lawn, IL 604532504
Phone: 7084248855
Fax: 7084246954 4400 N Calumet Ave Ste 100
Valparaiso, IN 463831696
Phone: 2192428221
Fax: 2192992580 2000 Franklin St Ste A
Michigan City, IN 463604535
Phone: 2198724445
Fax: 2198724436 931 Ridge Rd Ste H
Munster, IN 463211756
Phone: 2198364110
Fax: 2198362709
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2020
- CMS specialties
- Ophthalmology
Practice groups
Reported hospital affiliations
- Hennepin County Medical Center Minneapolis, MN
- St Mary Medical Center Inc Hobart, IN
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Travel and lodging | $1,638.71 |
| Grant | $750.00 |
| Food and beverage | $415.24 |
Reporting companies
| Company | Amount |
|---|---|
| BAUSCH & LOMB AMERICAS INC. | $2,031.59 |
| REGENERON PHARMACEUTICALS, INC. | $750.00 |
| ALCON VISION LLC | $22.36 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Ophthalmology
- Taxonomy code
- 207W00000X
- Enumeration date
- Mar 21, 2020
- Record updated
- Sep 14, 2026
More registry details
- Provider type
- Individual · Type 1
- Other reported name
- TRENT CHIANG
- Reported credentials
- MD
Reported taxonomies and licenses
207W00000X · Primary
License reported: 01098754A IN
207W00000X
License reported: 036178209 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
8679 Connecticut St Ste AMerrillville, IN 46410-6383
- Phone
- (219) 769-9022
- Fax
- (219) 649-2995
Mailing address
8679 CONNECTICUT ST STE AMERRILLVILLE, IN 464106383
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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