Grayson Smith, MD
NPI 1740224567 · Internal Medicine Physician · San Marcos, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grayson Smith, MD is a Internal Medicine Physician provider in San Marcos, TX (NPI 1740224567).
Provider details
- NPI number
- 1740224567
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- H2792 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,027 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 762 | $121 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 557 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 256 | $85 |
| Hemoglobin A1c Level83036 | 179 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 152 | $124 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 113 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 405 | 109 |
| Meloxicam | 340 | 103 |
| Lisinopril | 325 | 98 |
| Amlodipine Besylate | 317 | 85 |
| Atorvastatin Calcium | 274 | 81 |
| Rosuvastatin Calcium | 249 | 79 |
| Omeprazole | 244 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2009-11-19
Frequently asked questions
- What is Grayson Smith's NPI number?
- Grayson Smith's National Provider Identifier (NPI) is 1740224567, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grayson Smith's specialty?
- Grayson Smith is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grayson Smith located?
- Grayson Smith's practice location on file with NPPES is 1305 Wonder World Dr, San Marcos, TX 78666-7546.
- What is Grayson Smith's phone number?
- The practice phone number listed in the NPPES registry for Grayson Smith is (512) 396-1525.
- Does Grayson Smith accept Medicare?
- Grayson Smith is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grayson Smith's NPI active?
- Yes — Grayson Smith's NPI (1740224567) is active in the NPPES registry as of the last update on 2009-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.