Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Therese Lynn Defabis, APRN, ANP-BC

Individual provider Adult Health Nurse Practitioner · NPI 1538250618

Therese Lynn Defabis, APRN, ANP-BC is an Adult Health Nurse Practitioner in Indianapolis, Indiana. Works from 2 locations. Licensed in Colorado, Florida, Georgia and Indiana and 2 more.

Licensed in
CO, FL, GA, IN, OH, OK
In the registry since
2006
Specialties on file
7
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

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Practice location Address checks out

155 E Market St
Indianapolis, IN 46204-3294
Phone: (866) 849-0692
Fax: (888) 973-8821
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Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 1310 S Lebanon St, Lebanon, IN 46052-2792 — (765) 482-7005

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 71000314A (IN)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 0038109 (OH)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence GAA-NP004702 (GA)
Nurse Practitioner Taxonomy 363L00000X · Licence APRN11037167 (FL)
Nurse Practitioner Taxonomy 363L00000X · Licence 226556 (OK)
Nurse Practitioner Taxonomy 363L00000X · Licence 71000314 (IN)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence C-APN.0103422-C-NP (CO)

Record details

NPI number1538250618
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , ANP-BC
Sole proprietorNo
NPI enumeratedSeptember 27, 2006
Last updated in NPPESMay 19, 2026
Certification dateMay 19, 2026

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients148
Services billed 1,466 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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