NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Colin Patrick Keelan, DPT

Physical Therapist in Aberdeen, MD · enumerated 2013 · practices at Ati Holdings, LLC.

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

National Provider Identifier

1467885111

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Colin Patrick Keelan
Credential DPT
Sex Male
Practice address 4 N Parke St, Aberdeen, MD, 21001
Fax (410) 297-8142
Enumeration date Aug 16, 2013
Last updated in NPPES Jun 13, 2016

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 24592 (MD) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT credential

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

Where does Colin Keelan practice?
The practice location on file with NPPES is in Aberdeen, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Colin Keelan?
The National Provider Identifier (NPI) for Colin Keelan is 1467885111, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-13.