Diana L. Thorne, MD
Addiction Medicine (Psychiatry & Neurology) Physician · Columbia, SC
Diana L. Thorne, MD is an addiction medicine (psychiatry & neurology) physician with a practice address in Columbia, South Carolina, and NPI 1275643538, issued on Aug 30, 2006. Check the license (South Carolina 21703, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Diana L. Thorne
- Credential
- MD
- Primary taxonomy
- Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
- License number
- 21703 SC
Self-reported in NPPES; status is on the state search - Practice location
- 6439 Garners Ferry RD, Columbia, SC 29209
- Phone
- (803) 776-4000
- Enumerated
- Aug 30, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (803) 695-6891
- Medicare enrollment
- Enrolled (PECOS I20210331000892); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1995
- Entity
- Type 1 · individual
2 nearest addiction medicine (psychiatry & neurology) physician records → All 3 in South Carolina → Look up another NPI →
Also registered at 6439 Garners Ferry RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Oluwafunmilayo Abe, LMSWSocial Worker1679235048
- Ibukun AdedokunStudent in an Organized Health Care Education/Training Program1235847526
- Lisa Albins, PA-CPhysician Assistant1477769370
- Nael Alghothani, MDAnesthesiology Physician1811909674
- Dwayne Alleyne, ACNPCAcute Care Nurse Practitioner1962644393
- Landon Amick, DPTPhysical Therapist1740535772
Verify Diana L. Thorne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 21703Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average addiction medicine (psychiatry & neurology) physician in 2024
893 Medicare Part D claims for 50 beneficiaries, against an average of 870 among the 264 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Trazodone Hcl145 claims
- Bupropion Xl74 claims
- Venlafaxine Hcl Er61 claims
- Duloxetine Hcl56 claims
- Lamotrigine56 claims
- Quetiapine Fumarate50 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $195.21
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 142 providers of this specialty with any payment received $4,513.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- South Carolina Dept OF Mental Health Accounting OfficeBeaufort, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Addiction Medicine (Psychiatry & Neurology) Physician providers in South Carolina
There are 3 addiction medicine (psychiatry & neurology) physician records in South Carolina.
All 3 in South Carolina → Every provider in Columbia → Addiction Medicine (Psychiatry & Neurology) Physician nationwide →
The 2 addiction medicine (psychiatry & neurology) physician records with the nearest ZIP codes
- Joseph Markowitz, M.D.Columbia, SC 292031922203223
- Sam Ross, M.D.Anderson, SC 296211245264506
Common questions
What is Diana L. Thorne, MD's NPI number?
Diana L. Thorne, MD's National Provider Identifier (NPI) is 1275643538, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diana L. Thorne, MD located?
The NPPES record lists a practice address at 6439 Garners Ferry RD, Columbia, SC, 29209. Phone: (803) 776-4000. Providers update this record themselves, so call before visiting.
How can I verify Diana L. Thorne, MD's license?
NPPES lists South Carolina license number 21703, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diana L. Thorne, MD prescribe under Medicare Part D?
In 2024, Diana L. Thorne, MD had 893 Medicare Part D claims for 50 beneficiaries; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.