Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Therese Lynn Defabis, APRN, ANP-BC

Adult Health Nurse Practitioner in Indianapolis, IN · enumerated 2006 · practices at Admire Aba in LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538250618

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Registry record

Entity type Individual (Type 1)

Name Therese Lynn Defabis

Credential APRN, ANP-BC

Sex Female

Practice address 155 E Market St, Indianapolis, IN, 46204

Phone (866) 849-0692

Fax (888) 973-8821

Enumeration date Sep 27, 2006

Last updated in NPPES May 19, 2026

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71000314A (IN) Primary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0038109 (OH) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License GAA-NP004702 (GA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN11037167 (FL) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 226556 (OK) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71000314 (IN) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License C-APN.0103422-C-NP (CO) Secondary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
200855440	Medicaid	IN	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Therese Defabis?

The National Provider Identifier (NPI) for Therese Defabis is 1538250618, a Type 1 (individual) record in the CMS NPPES registry.

Where does Therese Defabis practice?

The practice location on file with NPPES is in Indianapolis, IN. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Admire Aba in LLC Behavior Analyst · Indianapolis, IN NPI 1396618922

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-19.