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

Stephen Liam O'Connor, MD

Individual provider Internal Medicine Physician · NPI 1881398758

Stephen Liam O'Connor, MD is an Internal Medicine Physician in Indianapolis, Indiana. Works from 2 locations. Licensed in Indiana.

Licensed in
IN
In the registry since
2023
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

8333 Naab Rd Ste 420
Indianapolis, IN 46260-1992
Phone: (317) 338-6666
Fax: (317) 338-9903
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1215 Lee St, Charlottesville, VA 22908-0816 — (434) 924-1931

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 01100294A (IN)

Record details

NPI number1881398758
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2023
Last updated in NPPESJuly 13, 2026
Certification dateJuly 13, 2026

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