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

GRANT K O'NEAL PHD
NPI 1356390389
Psychiatry & Neurology - Psychiatry in Columbia, MO

Q: What is Grant O'neal's NPI number?

The NPI number for Grant O'neal is 1356390389. It was assigned to this individual provider in the NPPES registry on May 8, 2006.

Q: What is Grant O'neal's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Grant O'neal was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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 May 08, 2006

601 BUSINESS LOOP 70 W, COLUMBIA, MO 65203(660) 248-2197 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Grant K O'neal Phd NPPES

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

GRANT K O'NEAL PHD (NPI 1356390389) is an individual psychiatry provider in Columbia, Missouri, licensed in Missouri (R0462) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1356390389

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameGRANT K O'NEALCredential: PHD

Location Address601 BUSINESS LOOP 70 WColumbia, MO 65203-2546

Mailing AddressPo Box 7687Columbia, MO 65205-7687 · (573) 882-2259 · Fax (573) 884-8526

Phone(660) 248-2197

Sole ProprietorNo

Enumeration DateMay 8, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1356390389 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in MO · R0462

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

601 BUSINESS LOOP 70 W, Columbia, MO 65203

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Other Providers at the Same Location NPPES 20

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

ALICE E WONDRA APRN

Nurse Practitioner

601 BUSINESS LOOP 70 W, STE 202
COLUMBIA, MO 65203

Boone County (573) 884-0863

DIANA J WALZ LCSW

Social Worker (Clinical)

601 BUSINESS LOOP 70 W
COLUMBIA, MO 65203

Boone County (573) 884-1400

PHYSICIAN GROUPS LC

Clinic/Center (Urgent Care)

601 BUSINESS LOOP 70 W
COLUMBIA, MO 65203

Boone County (573) 874-0008

MS. KATHERINE M ALBERS PLPC

Counselor (Professional)

601 BUSINESS LOOP 70 W, SUITE 153A
COLUMBIA, MO 65203

Boone County (573) 499-4572

JOHN MRUZIK

Family Medicine

601 BUSINESS LOOP 70 W, SUITE 275
COLUMBIA, MO 65203

Boone County (573) 874-0008

DR. KIM MARIE ANDERSON PHD LCSW SW002258

Social Worker (Clinical)

601 BUSINESS LOOP 70 W, SUITE 153B
COLUMBIA, MO 65203

Boone County (573) 499-4572

DR. BARRY L. SLANSKY PH.D.

Speech-Language Pathologist

601 BUSINESS LOOP 70 W, SUITE 137-B
COLUMBIA, MO 65203

Boone County (573) 268-5732

BRUCE HORWITZ PHD

Psychologist (Clinical)

601 BUSINESS LOOP 70 W
COLUMBIA, MO 65203

Boone County (573) 884-1400

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 Grant O'neal's NPI number?

The NPI number for Grant O'neal is 1356390389. It was assigned to this individual provider in the NPPES registry on May 8, 2006.

Where is Grant O'neal located?

Grant O'neal practices at 601 Business Loop 70 W, Columbia, MO 65203. The listed phone number is (660) 248-2197.

What is Grant O'neal's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Grant O'neal was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.