Doctor profile · Federal record
Dr. Vanessa Diaz, MD
Family Medicine Physician (CMS: Family Practice) · Charleston, SC
- NPI 1104934074
- Accepts Medicare
- 27 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
171 Ashley Ave
Charleston, SC 294250001
(843) 792-1414 - Mailing address
-
Po Box 751461
Charlotte, NC 282751461
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- October 8, 2020
- Year of graduation
- 1999 — 27 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- South Carolina #23349
- Medicaid
- SC #T75371
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104934074. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
243
Distinct HCPCS
6
Medicare allowed
$21,604
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 87 | 51 | $120 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 58 | 11 | $59 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 33 | 24 | $85 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 25 | 25 | $116 | |
G0008 |
Administration of influenza virus vaccine | 21 | 20 | $29 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 19 | 18 | $75 |
In context: peer comparison
Among 39 peers in Charleston Family Medicine Physician, average services per provider: 409. This provider delivers 0.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,029
Patients
248
Total drug cost
$18,784
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 140 | 43 | $3,036 |
| Amlodipine Besylate | Generic | 138 | 38 | $1,128 |
| Oxycodone Hcl | Generic | 85 | 12 | $2,107 |
| Hydrochlorothiazide | Generic | 68 | 25 | $421 |
| Pantoprazole Sodium | Generic | 67 | 14 | $833 |
| Diclofenac Sodium | Generic | 65 | 23 | $1,651 |
| Losartan Potassium | Generic | 59 | 19 | $843 |
| Levothyroxine Sodium | Generic | 56 | 18 | $1,072 |
| Omeprazole | Generic | 56 | 13 | $868 |
| Gabapentin | Generic | 53 | 17 | $1,320 |
Frequently asked questions
What is Dr. Vanessa Diaz's medical specialty?
Dr. Vanessa Diaz practices Family Medicine Physician in Charleston, SC.
Where does Dr. Vanessa Diaz practice?
Dr. Vanessa Diaz practices at 171 Ashley Ave, Charleston, SC 294250001. Office phone: 8437921414.
What is Dr. Vanessa Diaz's NPI?
Dr. Vanessa Diaz's National Provider Identifier (NPI) is 1104934074, issued by NPPES.
Does Dr. Vanessa Diaz accept Medicare assignment?
Yes. Dr. Vanessa Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Vanessa Diaz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Chronic care management services (HCPCS 99490); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.