Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Tsunkang Chiang, MD

Individual provider Ophthalmology Physician · NPI 1033745021

Tsunkang Chiang, MD practises Ophthalmology in Merrillville, Indiana. Qualified in 2020, 6 years ago. Practices with Vitreo Retinal Surgery PLLC, a 25-clinician group, works from 7 locations and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
6
Licensed in
IL, IN
In the registry since
2020
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

8679 Connecticut St Ste A
Merrillville, IN 46410-6383
Phone: (219) 769-9022
Fax: (219) 649-2995
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (6)

  • 963 N 129th Infantry Dr Ste 130, Joliet, IL 60435-3103 — (815) 744-1812
  • 4930 W 95th St, Oak Lawn, IL 60453-2504 — (708) 424-8855
  • 15255 S 94th Ave Ste 202e, Orland Park, IL 60462-3810 — (708) 364-1700
  • 2000 Franklin St Ste A, Michigan City, IN 46360-4535 — (219) 872-4445
  • 931 Ridge Rd Ste H, Munster, IN 46321-1756 — (219) 836-4110
  • 4400 N Calumet Ave Ste 100, Valparaiso, IN 46383-1696 — (219) 242-8221

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 01098754A (IN)
Ophthalmology Physician Taxonomy 207W00000X · Licence 036178209 (IL)

Record details

NPI number1033745021
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 21, 2020
Last updated in NPPESSeptember 14, 2026
Certification dateSeptember 14, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Vitreo Retinal Surgery Pllc — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $1,639 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Grant $750 1 payment · funding for a project or programme, not a fee for the clinician’s time
Food and Beverage $415 8 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Vitreo Retinal Surgery PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 25 clinicians in the practice; 12 are shown here.

Other providers in Merrillville