What is Thomas Llewellyn, DDS, Assoc. PA's NPI number?

Thomas Llewellyn, DDS, Assoc. PA's National Provider Identifier (NPI) is 1679658959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is Thomas Llewellyn, DDS, Assoc. PA?

Thomas Llewellyn, DDS, Assoc. PA is classified in the NPPES registry as Dentist (Dental Providers).

Where is Thomas Llewellyn, DDS, Assoc. PA located?

Thomas Llewellyn, DDS, Assoc. PA's practice location on file with NPPES is 120 Sister Pierre Drive, Towson, MD 21204-7526.

What is Thomas Llewellyn, DDS, Assoc. PA's phone number?

The practice phone number listed in the NPPES registry for Thomas Llewellyn, DDS, Assoc. PA is (410) 821-0100.

Who is the authorized official for Thomas Llewellyn, DDS, Assoc. PA?

The authorized official listed on Thomas Llewellyn, DDS, Assoc. PA's NPPES record is Thomas Llewellyn, Dentist Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is Thomas Llewellyn, DDS, Assoc. PA's NPI active?

Yes — Thomas Llewellyn, DDS, Assoc. PA's NPI (1679658959) is active in the NPPES registry as of the last update on 2008-07-15.

OrganizationActive

Thomas Llewellyn, DDS, Assoc. PA

NPI 1679658959 · Dentist · Towson, MD

Thomas Llewellyn, DDS, Assoc. PA is a Dentist organization in Towson, MD (NPI 1679658959).

Provider details

NPI number: 1679658959
Entity type: Organization
Primary specialty: DentistDental Providers
Organization subpart: No
Authorized official: Thomas Llewellyn, Dentist Owner(410) 821-0100

Practice location

120 Sister Pierre Drive

Suite 302

Towson, MD 21204-7526

Phone: (410) 821-0100

Fax: (410) 821-0112

Street-level locationGet directions

More MD providers

Mailing address

120 Sister Pierre Drive

Towson, MD 21204-7526

Specialties & taxonomies

DentistPrimary122300000X
Dental Providers

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2006-10-26
Last updated: 2008-07-15

Frequently asked questions

What is Thomas Llewellyn, DDS, Assoc. PA's NPI number?: Thomas Llewellyn, DDS, Assoc. PA's National Provider Identifier (NPI) is 1679658959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is Thomas Llewellyn, DDS, Assoc. PA?: Thomas Llewellyn, DDS, Assoc. PA is classified in the NPPES registry as Dentist (Dental Providers).
Where is Thomas Llewellyn, DDS, Assoc. PA located?: Thomas Llewellyn, DDS, Assoc. PA's practice location on file with NPPES is 120 Sister Pierre Drive, Towson, MD 21204-7526.
What is Thomas Llewellyn, DDS, Assoc. PA's phone number?: The practice phone number listed in the NPPES registry for Thomas Llewellyn, DDS, Assoc. PA is (410) 821-0100.
Who is the authorized official for Thomas Llewellyn, DDS, Assoc. PA?: The authorized official listed on Thomas Llewellyn, DDS, Assoc. PA's NPPES record is Thomas Llewellyn, Dentist Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is Thomas Llewellyn, DDS, Assoc. PA's NPI active?: Yes — Thomas Llewellyn, DDS, Assoc. PA's NPI (1679658959) is active in the NPPES registry as of the last update on 2008-07-15.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions