Michael Sullivan, DDS
NPI 1639586258 · General Practice Dentistry · Harlingen, TX
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Sullivan, DDS is a General Practice Dentistry provider in Harlingen, TX (NPI 1639586258).
Provider details
- NPI number
- 1639586258
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 30117 (TX)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-07-15
- Last updated
- 2017-02-08
Frequently asked questions
- What is Michael Sullivan's NPI number?
- Michael Sullivan's National Provider Identifier (NPI) is 1639586258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Sullivan's specialty?
- Michael Sullivan is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Michael Sullivan located?
- Michael Sullivan's practice location on file with NPPES is 2106 Treasure Hills Blvd, Harlingen, TX 78550-8736.
- What is Michael Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Michael Sullivan is (940) 210-2810.
- Does Michael Sullivan accept Medicare?
- Michael Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Sullivan's NPI active?
- Yes — Michael Sullivan's NPI (1639586258) is active in the NPPES registry as of the last update on 2017-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.