Individual Healthcare Provider
Donald Tanis, M.D.
Provider's NPPES record last updated: April 22, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1902822158
- Primary Specialty
- Internal Medicine — Adult Congenital Heart Disease
- Practice Location
- Chicago, Illinois
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 18, 2026, 1:41 PM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Internal Medicine
Adult Congenital Heart Disease
Allopathic & Osteopathic Physicians
A physician who specializes in the care and treatment of adults with congenital heart disease. Adult congenital heart disease (ACHD) physicians are trained to understand the complexities of congenital heart disease, anatomy, physiology, surgical repairs, and long-term complications and use that to manage ACHD with acquired heart disease, including heart failure, arrhythmias, and pulmonary hypertension.
Taxonomy code 207RA0002X Internal Medicine
Cardiovascular Disease
Allopathic & Osteopathic Physicians
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Taxonomy code 207RC0000X
Provider-Reported License Information
- Internal Medicine (Illinois)
- 036083772
- Internal Medicine (Illinois)
- 036-083772
Practice Locations
Practice Location
1725 W Harrison St
Suite 1159
Chicago, Illinois 60612-3841
Phone: (312) 942-5020
Record Information
- Enumeration Date
- July 14, 2006
- Provider's NPPES Record Last Updated
- April 22, 2026
- Certification Date
- April 22, 2026
- NPISignal NPPES Dataset
- August 2026
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