Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William Dreas Lambert, MD

Individual provider Psychiatry Physician · NPI 1285669507

William Dreas Lambert, MD practises Psychiatry in Greenwood, South Carolina. Graduated from Medical University of South Carolina College of Medicine in 1989, 37 years ago. Practices with Self Medical Group, a 396-clinician group, accepts Medicare assignment and offers telehealth. Licensed in South Carolina.

Years since qualifying
37
Trained at
Medical University of South Carolina College of Medicine
Licensed in
SC
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1325 Spring St Srh Bhu
Greenwood, SC 29646-3860
Phone: (864) 725-4398
Fax: (864) 725-4399
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 36533 (SC)

Record details

NPI number1285669507
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESDecember 10, 2021
Certification dateDecember 10, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Self Medical Group — 396 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients13
Services billed 183 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Self Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 396 clinicians in the practice; 12 are shown here.

Other providers in Greenwood