Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas Clark Keller Sr., D.D.S.

General Practice Dentistry in Towson, MD · enumerated 2006.

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

National Provider Identifier

1194832279

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas Clark Keller Sr.

Credential D.D.S.

Sex Male

Practice address 21 West Rd, 104, Towson, MD, 21204

Phone (410) 828-1177

Fax (410) 828-1252

Enumeration date Aug 24, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 5771 (MD) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 Thomas Keller practice?

The practice location on file with NPPES is in Towson, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Thomas Keller?

The National Provider Identifier (NPI) for Thomas Keller is 1194832279, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Robin Korotki Physical Therapist · Towson, MD NPI 1235139064 Leo I. Korotki, M.D. Physical Medicine & Rehabilitation Physician · Baltimore, MD NPI 1053371617 Judith Tunkle Counselor · Towson, MD NPI 1841244068 Danae Wheatley Clinical Social Worker · Towson, MD NPI 1942241567 Daniel Mcleod Clinical Psychologist · Towson, MD NPI 1770508129 Albert Ousborne Prosthodontics · Towson, MD NPI 1932216108 Ousborne and Keller, D.D.S., P.A. Dentist · Towson, MD NPI 1013024116 Ralph Raphael Psychologist · Baltimore, MD NPI 1144316175

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.