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MCDONALD & O'CALLAGHAN, P.A.
NPI 1265553879
Psychologist - Clinical in Arnold, MD

Active since April 02, 2007
1521 RITCHIE HWY STE 3E, ARNOLD, MD 21012(410) 757-9311 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mcdonald & O'callaghan, P.a. NPPES

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

MCDONALD & O'CALLAGHAN, P.A. (NPI 1265553879) is a healthcare organization registered as a clinical in Arnold, Maryland and active in the NPI registry since April 2007. The organization lists P Gayle O'callaghan, President, as its authorized official.

NPPES Registry Identity

NPI1265553879
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameMCDONALD & O'CALLAGHAN, P.A.
Location Address1521 RITCHIE HWY STE 3EArnold, MD 21012-2747
Mailing AddressPo Box 9708, 1521 Ritchie Highway Suite 3eArnold, MD 21012-0708 · (410) 757-9311
Phone(410) 757-9311
Organization SubpartNo
Authorized OfficialP Gayle O'callaghanPresident · (410) 757-9311
Enumeration DateApril 2, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1265553879 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MD · 1753
Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

1521 RITCHIE HWY STE 3E, Arnold, MD 21012
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Other Identifiers 1

OtherNO IDENTIFICATION #MD · No Description Known

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 Mcdonald & O'callaghan, P.A.'s NPI number?

The NPI number for Mcdonald & O'callaghan, P.A. is 1265553879. It was assigned to this organization in the NPPES registry on April 2, 2007.

Where is Mcdonald & O'callaghan, P.A. located?

Mcdonald & O'callaghan, P.A. is located at 1521 Ritchie Hwy Ste 3E, Arnold, MD 21012. The listed phone number is (410) 757-9311.

What is Mcdonald & O'callaghan, P.A.'s specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mcdonald & O'callaghan, P.A. was last updated on August 22, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.