What is Thomas Sullivan's NPI number?

Thomas Sullivan's National Provider Identifier (NPI) is 1003033283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas Sullivan's specialty?

Thomas Sullivan is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).

Where is Thomas Sullivan located?

Thomas Sullivan's practice location on file with NPPES is 1200 High Ridge Parkway, Westchester, IL 60154.

What is Thomas Sullivan's phone number?

The practice phone number listed in the NPPES registry for Thomas Sullivan is (708) 562-4474.

Is Thomas Sullivan's NPI active?

Yes — Thomas Sullivan's NPI (1003033283) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Thomas Sullivan, DDS

NPI 1003033283 · General Practice Dentistry · Westchester, IL

Thomas Sullivan, DDS is a General Practice Dentistry provider in Westchester, IL (NPI 1003033283).

Provider details

NPI number: 1003033283
Entity type: Individual
Primary specialty: General Practice DentistryDental Providers
Credential: DDS
Sex: Male
Sole proprietor: No

Practice location

1200 High Ridge Parkway

Westchester, IL 60154

Phone: (708) 562-4474

Fax: (708) 562-4535

Street-level locationGet directions

More IL providers

Mailing address

9840 Dickens

Westchester, IL 60154

Specialties & taxonomies

General Practice DentistryPrimary1223G0001X
Dental Providers

Profile Score

Detailed profile(84/100 index)

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

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
83% 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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Amoxicillin	42	35

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2007-04-19
Last updated: 2007-07-08

Frequently asked questions

What is Thomas Sullivan's NPI number?: Thomas Sullivan's National Provider Identifier (NPI) is 1003033283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Thomas Sullivan's specialty?: Thomas Sullivan is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
Where is Thomas Sullivan located?: Thomas Sullivan's practice location on file with NPPES is 1200 High Ridge Parkway, Westchester, IL 60154.
What is Thomas Sullivan's phone number?: The practice phone number listed in the NPPES registry for Thomas Sullivan is (708) 562-4474.
Is Thomas Sullivan's NPI active?: Yes — Thomas Sullivan's NPI (1003033283) is active in the NPPES registry as of the last update on 2007-07-08.

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

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Frequently asked questions