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

KEITH WILLIAM HANNAN PH.D.
NPI 1093758591
Psychologist - Clinical in Clarksville, MD

Active since June 13, 2006
12037 FLOATING CLOUDS PATH, CLARKSVILLE, MD 21029(410) 707-0100 Get Directions Write a Review

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

About Keith William Hannan Ph.d. NPPES

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

KEITH WILLIAM HANNAN PH.D. (NPI 1093758591) is an individual clinical provider in Clarksville, Maryland, licensed in Maryland (02666) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1093758591
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameKEITH WILLIAM HANNANCredential: PH.D.
Location Address12037 FLOATING CLOUDS PATHClarksville, MD 21029-1678
Mailing Address12037 Floating Clouds PathClarksville, MD 21029-1678 · (410) 707-0100
Phone(410) 707-0100
Sole ProprietorNo
Enumeration DateJune 13, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1093758591 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 · 02666
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.
12037 FLOATING CLOUDS PATH, Clarksville, MD 21029
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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 Keith Hannan's NPI number?

The NPI number for Keith Hannan is 1093758591. It was assigned to this individual provider in the NPPES registry on June 13, 2006.

Where is Keith Hannan located?

Keith Hannan practices at 12037 Floating Clouds Path, Clarksville, MD 21029. The listed phone number is (410) 707-0100.

What is Keith Hannan'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 Keith Hannan 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 36 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.