Joseph David Markowitz, M.D.
Addiction Medicine (Psychiatry & Neurology) Physician · Columbia, SC
Joseph David Markowitz, M.D. is an addiction medicine (psychiatry & neurology) physician with a practice address in Columbia, South Carolina, and NPI 1922203223, issued on Jun 18, 2007. Check the license (South Carolina 23709, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joseph David Markowitz
- Credential
- M.D.
- Primary taxonomy
- Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
- License numbers
- 23709 SC
ME88558 FL
Self-reported in NPPES; status is on the state search - Practice location
- 3555 Harden Street Ext Ste 141, Columbia, SC 29203
- Phone
- (803) 434-4300
- Enumerated
- Jun 18, 2007
- Record last updated
- Jun 22, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 237096 SC
- Entity
- Type 1 · individual
2 nearest addiction medicine (psychiatry & neurology) physician records → All 3 in South Carolina → Look up another NPI →
Also registered at 3555 Harden Street Ext Ste 141
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Benn, MSN, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1558028746
- Leigh BlendowskiPsychiatric/Mental Health Nurse Practitioner1104275148
- John Bragg, M.D.Child & Adolescent Psychiatry Physician1790746584
- Robert Breen, M.D.Psychiatry Physician1427019181
- Amanda Caywood, RNPsychiatric/Mental Health Nurse Practitioner1417520230
- John Clinton, LISW-CPClinical Social Worker1780742882
Verify Joseph David Markowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 23709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $15.86
1 payment: food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., 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.
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
- Diana Thorne, MDColumbia, SC 292091275643538
- Sam Ross, M.D.Anderson, SC 296211245264506
Common questions
What is Joseph David Markowitz, M.D.'s NPI number?
Joseph David Markowitz, M.D.'s National Provider Identifier (NPI) is 1922203223, issued on Jun 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joseph David Markowitz, M.D. located?
The NPPES record lists a practice address at 3555 Harden Street Ext Ste 141, Columbia, SC, 29203. Phone: (803) 434-4300. Providers update this record themselves, so call before visiting.
How can I verify Joseph David Markowitz, M.D.'s license?
NPPES lists South Carolina license number 23709, 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.
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.