Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ELIZABETH O'BRIEN
NPI 1083534036
Nurse Practitioner - Psychiatric/Mental Health in Greenwood, IN

Q: What is Elizabeth O'brien's NPI number?

The NPI number for Elizabeth O'brien is 1083534036. It was assigned to this individual provider in the NPPES registry on July 20, 2026.

Q: What is Elizabeth O'brien's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Elizabeth O'brien was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 20, 2026

333 E COUNTY LINE RD, GREENWOOD, IN 46143(317) 743-5990 Get Directions Write a Review

NPPES record last updated: October 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 29, 2026, Jul 20, 2026 (2 updates tracked since 2026).

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About Elizabeth O'brien NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ELIZABETH O'BRIEN (NPI 1083534036) is an individual psychiatric/mental health provider in Greenwood, Indiana, licensed in Indiana (71018394A) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1083534036

Entity TypeIndividual

Primary Taxonomy363LP0808X

Provider Legal NameELIZABETH O'BRIEN

Location Address333 E COUNTY LINE RDGreenwood, IN 46143-1079

Mailing Address333 E County Line RdGreenwood, IN 46143-1079

Phone(317) 743-5990

Sole ProprietorNo

Enumeration DateJuly 20, 2026

Last NPPES UpdateOctober 29, 20262 updates tracked since enumeration

NPPES CertifiedOctober 29, 2026

✔ NPI 1083534036 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in IN · 71018394A

333 E COUNTY LINE RD, Greenwood, IN 46143

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Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

COMMUNITY HOSPITALS OF INDIANA INC

Family Medicine

333 E COUNTY LINE RD, SUITE B
GREENWOOD, IN 46143

Johnson County (317) 497-6333

KATHRYN ELAINE KASYJANSKI MD

Pediatrics

333 E COUNTY LINE RD, SUITE B
GREENWOOD, IN 46143

Johnson County (317) 497-6333

KATHY ANN MULLIN FNP

Nurse Practitioner (Family)

333 E COUNTY LINE RD, SUITE B
GREENWOOD, IN 46143

Johnson County (317) 621-1247

MERY A KENDALL MD

Family Medicine

333 E COUNTY LINE RD, SUITE B
GREENWOOD, IN 46143

Johnson County (317) 497-6333

RYAN J SANDERSON MD

Family Medicine

333 E COUNTY LINE RD, SUITE B
GREENWOOD, IN 46143

Johnson County (317) 497-6333

DON R DUBOIS MD

Pediatrics

333 E COUNTY LINE RD, SUITE B
GREENWOOD, IN 46143

Johnson County (317) 497-6333

MIKINNA WHITE PHARMD

Pharmacist

333 E COUNTY LINE RD
GREENWOOD, IN 46143

Johnson County (317) 887-7333

DEBRA K TAYLOR NP

Nurse Practitioner (Women's Health)

333 E COUNTY LINE RD, SUITE B
GREENWOOD, IN 46143

Johnson County (317) 497-6333

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Elizabeth O'brien's NPI number?

The NPI number for Elizabeth O'brien is 1083534036. It was assigned to this individual provider in the NPPES registry on July 20, 2026.

Where is Elizabeth O'brien located?

Elizabeth O'brien practices at 333 E County Line Rd, Greenwood, IN 46143. The listed phone number is (317) 743-5990.

What is Elizabeth O'brien's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

When was this NPI record last updated?

The NPPES record for Elizabeth O'brien was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.