Samuel Mathis, MD
NPI 1366853913 · Family Medicine Physician · Galveston, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Mathis, MD is a Family Medicine Physician provider in Galveston, TX (NPI 1366853913).
Provider details
- NPI number
- 1366853913
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
456 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 190 | $95 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 168 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 38 | $64 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 34 | $116 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 14 | $97 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 155 | 52 |
| Amlodipine Besylate | 141 | 46 |
| Metformin Hcl | 87 | 20 |
| Rosuvastatin Calcium | 87 | 26 |
| Lisinopril | 82 | 28 |
| Gabapentin | 71 | 24 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$106 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 301 University BlvdGalveston, TX 77555-3550Phone: (409) 772-2166
- 14023 Southwest FwySugar Land, TX 77478-3550Phone: (281) 325-4100Fax: (281) 325-4292
Registry dates
- Enumerated
- 2014-05-16
- Last updated
- 2026-03-12
- Certified
- 2026-03-12
Frequently asked questions
- What is Samuel Mathis's NPI number?
- Samuel Mathis's National Provider Identifier (NPI) is 1366853913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Mathis's specialty?
- Samuel Mathis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel Mathis located?
- Samuel Mathis's practice location on file with NPPES is 400 Harborside Dr, Galveston, TX 77555-0001.
- What is Samuel Mathis's phone number?
- The practice phone number listed in the NPPES registry for Samuel Mathis is (409) 772-2166.
- Does Samuel Mathis accept Medicare?
- Samuel Mathis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Mathis's NPI active?
- Yes — Samuel Mathis's NPI (1366853913) is active in the NPPES registry as of the last update on 2026-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.