Doctor profile · Federal record
Dr. William Lambert, MD
Psychiatry Physician (CMS: Psychiatry) · Greenwood, SC
- NPI 1285669507
- Accepts Medicare
- MIPS 96.1 / 100 · 2023
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1325 Spring St, Srh Bhu
Greenwood, SC 296463860
(864) 725-4398
fax (864) 725-4399
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 10, 2021
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- South Carolina #36533
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1285669507. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
167
Distinct HCPCS
2
Medicare allowed
$12,853
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 84 | 16 | $99 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 83 | 16 | $54 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 44. This provider delivers 3.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
569
Patients
42
Total drug cost
$22,464
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clonazepam | Generic | 90 | 12 | $1,129 |
| Lorazepam | Generic | 73 | 15 | $422 |
| Trazodone Hcl | Generic | 63 | 15 | $1,156 |
| Alprazolam | Generic | 47 | 0 | $403 |
| Duloxetine Hcl | Generic | 45 | 0 | $2,125 |
| Quetiapine Fumarate | Generic | 35 | 0 | $2,425 |
| Fluoxetine Hcl | Generic | 31 | 0 | $701 |
| Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) | Brand | 29 | 0 | $586 |
| Escitalopram Oxalate | Generic | 29 | 0 | $203 |
| Diazepam | Generic | 27 | 0 | $92 |
Frequently asked questions
What is Dr. William Lambert's medical specialty?
Dr. William Lambert practices Psychiatry Physician in Greenwood, SC.
Where does Dr. William Lambert practice?
Dr. William Lambert practices at 1325 Spring St, Greenwood, SC 296463860. Office phone: 8647254398.
What is Dr. William Lambert's NPI?
Dr. William Lambert's National Provider Identifier (NPI) is 1285669507, issued by NPPES.
Does Dr. William Lambert accept Medicare assignment?
Yes. Dr. William Lambert accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Lambert commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Psychotherapy with evaluation and management visit (HCPCS 90833). Source: CMS Medicare Physician & Other Practitioners file.