Doctor profile · Federal record
Dr. Grayson Smith, MD
Internal Medicine Physician (CMS: Internal Medicine) · San Marcos, TX
- NPI 1740224567
- Accepts Medicare
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1305 Wonder World Dr, Ste 206
San Marcos, TX 786667546
(512) 396-1525
fax (512) 353-2530
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- November 19, 2009
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Texas #H2792
- Medicaid
- TX #042439202
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740224567. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,049
Distinct HCPCS
10
Medicare allowed
$145,130
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 722 | 289 | $120 | |
36415 |
Insertion of needle into vein for collection of blood sample | 551 | 277 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 223 | 141 | $82 | |
83036 |
Hemoglobin a1c level | 161 | 85 | $9 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 161 | 161 | $124 | |
90662 |
Influenza vaccine split virus, preservative free | 60 | 60 | $72 | |
G0008 |
Administration of influenza virus vaccine | 60 | 60 | $30 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 22 | 18 | $172 | |
81002 |
Urinalysis, manual test | 21 | 16 | $3 | |
G0179 |
Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a | 20 | 11 | $39 |
In context: peer comparison
Among 2 peers in San Marcos Internal Medicine Physician, average services per provider: 124. This provider delivers 17× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
3,358
Patients
992
Total drug cost
$37,734
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 391 | 100 | $5,311 |
| Amlodipine Besylate | Generic | 299 | 75 | $1,895 |
| Atorvastatin Calcium | Generic | 294 | 79 | $3,853 |
| Lisinopril | Generic | 262 | 77 | $2,236 |
| Omeprazole | Generic | 237 | 68 | $2,750 |
| Meloxicam | Generic | 228 | 80 | $1,062 |
| Losartan Potassium | Generic | 227 | 61 | $2,821 |
| Rosuvastatin Calcium | Generic | 217 | 62 | $4,520 |
| Metformin Hcl | Generic | 215 | 60 | $2,047 |
| Metoprolol Succinate | Generic | 196 | 55 | $3,626 |
Hospital affiliations
Frequently asked questions
What is Dr. Grayson Smith's medical specialty?
Dr. Grayson Smith practices Internal Medicine Physician in San Marcos, TX.
Where does Dr. Grayson Smith practice?
Dr. Grayson Smith practices at 1305 Wonder World Dr, San Marcos, TX 786667546. Office phone: 5123961525.
What is Dr. Grayson Smith's NPI?
Dr. Grayson Smith's National Provider Identifier (NPI) is 1740224567, issued by NPPES.
Does Dr. Grayson Smith accept Medicare assignment?
Yes. Dr. Grayson Smith accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Grayson Smith commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.