Simon Mack, D.D.S.
NPI 1639676166 · Dentist · Longview, TX
Enrolled with Medicare as Practitioner - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Simon Mack, D.D.S. is a Dentist provider in Longview, TX (NPI 1639676166).
Provider details
- NPI number
- 1639676166
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Dental Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
11 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 11 | $69 |
Typical Medicare-allowed amounts for these services range $69–$69 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Penicillin V Potassium | 177 | 163 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 103 | 101 |
| Tramadol Hcl | 87 | 83 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 48 | 47 |
| Clindamycin Hcl | 47 | 44 |
| Amoxicillin | 39 | 34 |
| Chlorhexidine Gluconate | 28 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-11
- Last updated
- 2022-09-09
- Certified
- 2022-09-09
Frequently asked questions
- What is Simon Mack's NPI number?
- Simon Mack's National Provider Identifier (NPI) is 1639676166, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Simon Mack's specialty?
- Simon Mack is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Simon Mack located?
- Simon Mack's practice location on file with NPPES is 3004 H.g. Mosley Pkwy, Longview, TX 75605.
- What is Simon Mack's phone number?
- The practice phone number listed in the NPPES registry for Simon Mack is (903) 758-3444.
- Does Simon Mack accept Medicare?
- Simon Mack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Simon Mack's NPI active?
- Yes — Simon Mack's NPI (1639676166) is active in the NPPES registry as of the last update on 2022-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.