Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Chad Gier, MD

Individual provider Internal Medicine Physician · NPI 1568999555

Chad Gier, MD is an Internal Medicine Physician in Chicago, Illinois. Practices as a sole proprietor and works from 3 locations. Licensed in Connecticut and Illinois.

Licensed in
CT, IL
In the registry since
2017
Specialties on file
3
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

251 E Huron St
Chicago, IL 60611-2908
Phone: (312) 926-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 20 York Street, New Haven, CT 06510 — (203) 688-9503
  • Hsc T-16-080 Stony Brook University Medical Center, Stony Brook, NY 11794-0001 — (631) 444-7515

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence 036.170782 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 66333 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1568999555
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 22, 2017
Last updated in NPPESJune 27, 2024
Certification dateJune 27, 2024

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.

Grant $11,545 5 payments · funding for a project or programme, not a fee for the clinician’s time
Consulting Fee $9,000 1 payment
Food and Beverage $3,364 71 payments · a meal or drink at a meeting or visit, not a fee
Education $214 1 payment · educational material or training, not a fee
Travel and Lodging $18 2 payments · travel or lodging paid or reimbursed, such as to attend a conference

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.

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