Quick answers
- Where does Simon L. Mack see patients?
- Medicare's clinician data lists 2 practice locations, including Mount Pleasant, TX and Longview, TX. Call before your visit to confirm the address.
- What is Simon L. Mack's specialty?
- Medicare lists Dentist as the primary specialty, and also Oral Surgery.
- Does Simon L. Mack accept Medicare assignment?
- Yes. Medicare's clinician data says Simon L. Mack accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Simon L. Mack?
- (903) 758-3444, as listed in official Medicare / NPI Registry data.
- What is Simon L. Mack's NPI number?
- 1639676166. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Simon L. Mack is enrolled with Medicare (CMS data updated 2026-10-02).
- 1003 N Jefferson AveMount Pleasant, TX 75455 (903) 758‑3444
- 3004 H G Mosley PkwyLongview, TX 75605 (903) 758‑3444
Group practices
Medicare enrollment lists Simon L. Mack as a member of this group (CMS data updated 2026-10-02).
- East Texas Oral and Maxillofacial Surgery Associates Inc3 clinicians in the group
Specialties
- Dentistprimary
- Oral Surgeryalso
Other dentists in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Clinician information
| Credential | DDS |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639676166 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians