Doctor profile · Federal record
Dr. William Walkup, MD
Psychiatry Physician (CMS: Psychiatry) · Columbia, SC
- NPI 1386619948
- Accepts Medicare
- 35 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
125 Alpine Circle
Columbia, SC 29223
(803) 779-3548
fax (803) 779-7055
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- January 19, 2012
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- South Carolina #16261
- Medicaid (2)
- SC #162610 · SC #400186
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1386619948. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
513
Distinct HCPCS
4
Medicare allowed
$56,672
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 428 | 104 | $113 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 40 | 20 | $85 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 27 | 24 | $67 | |
90792 |
Psychiatric diagnostic evaluation with medical services | 18 | 18 | $180 |
In context: peer comparison
Among 22 peers in this city , average services per provider: 105. This provider delivers 4.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,721
Patients
295
Total drug cost
$28,040
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Bupropion Xl (Bupropion Hcl) | Brand | 209 | 33 | $4,440 |
| Trazodone Hcl | Generic | 191 | 35 | $2,337 |
| Lorazepam | Generic | 173 | 29 | $1,706 |
| Alprazolam | Generic | 151 | 27 | $1,686 |
| Venlafaxine Hcl Er (Venlafaxine Hcl) | Brand | 137 | 23 | $2,583 |
| Clonazepam | Generic | 127 | 22 | $1,254 |
| Escitalopram Oxalate | Generic | 114 | 21 | $1,208 |
| Sertraline Hcl | Generic | 93 | 15 | $836 |
| Aripiprazole | Generic | 84 | 15 | $2,922 |
| Mirtazapine | Generic | 82 | 19 | $1,290 |
Frequently asked questions
What is Dr. William Walkup's medical specialty?
Dr. William Walkup practices Psychiatry Physician in Columbia, SC.
Where does Dr. William Walkup practice?
Dr. William Walkup practices at 125 Alpine Circle, Columbia, SC 29223. Office phone: 8037793548.
What is Dr. William Walkup's NPI?
Dr. William Walkup's National Provider Identifier (NPI) is 1386619948, issued by NPPES.
Does Dr. William Walkup accept Medicare assignment?
Yes. Dr. William Walkup accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Walkup commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Psychotherapy with evaluation and management visit (HCPCS 90833). Source: CMS Medicare Physician & Other Practitioners file.