Joshua Taylor Thornhill, MD
Psychiatry Physician · Columbia, SC
Joshua Taylor Thornhill, MD is a psychiatry physician with a practice address in Columbia, South Carolina, and NPI 1013977974, issued on Mar 24, 2006. Check the license (South Carolina 15588, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joshua Taylor Thornhill
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 15588 SC
Self-reported in NPPES; status is on the state search - Practice location
- 15 Medical Park RD, Columbia, SC 29203
- Phone
- (803) 434-4300
- Enumerated
- Mar 24, 2006
- Record last updated
- Mar 29, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (803) 434-4351
- Medicaid ID
- 155888 SC
- Medicare enrollment
- Enrolled (PECOS I20101021000914); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 1989
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 891 in South Carolina → Look up another NPI →
Also registered at 15 Medical Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joan Amado, M.S.WClinical Social Worker1992766323
- Tora Brawley, PH.D.Forensic Psychologist1235190653
- Lisa Bryant, M.D.Child & Adolescent Psychiatry Physician1821065921
- Leslie Burke, PH.D.Clinical Psychologist1902867526
- Nioaka Campbell, M.D.Psychiatry Physician1083675615
- Allison Defelice, PH.D.Clinical Psychologist1306807573
Verify Joshua Taylor Thornhill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 15588Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
41 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Duloxetine Hcl17 claims
- Lorazepam11 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.
The MIPS final score for 2023 (Medicare payment program): 99.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Prisma Health Medical Group-MidlandsColumbia, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joshua Taylor Thornhill among 891 psychiatry physician records in South Carolina
Joshua Taylor Thornhill, MD is one of 891 psychiatry physician records with a practice address in South Carolina. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 63% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated1989 · median 2007 among the 365 with a school on file
- Record last updated2017 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
171 psychiatry physician records list a practice address in Columbia
They are 171 of the 11,200 NPPES records with a practice address in Columbia, and 891 psychiatry physician records in South Carolina.
All 891 in South Carolina → Every provider in Columbia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- James Bouknight, M.D.Columbia, SC 292031174584916
- Jeffery Brandenburg, MDColumbia, SC 292031659345379
- Robert Breen, M.D.Columbia, SC 292031427019181
- Nioaka Campbell, M.D.Columbia, SC 292031083675615
- Leslie Frinks, M.D.Columbia, SC 292031699738591
- Marilee Griswold, M.D.Columbia, SC 292031821068719
- Richard Harding, M.D.Columbia, SC 292031356301923
- Jo Marturano, M.D.Columbia, SC 292031609875244
Common questions
What is Joshua Taylor Thornhill, MD's NPI number?
Joshua Taylor Thornhill, MD's National Provider Identifier (NPI) is 1013977974, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Taylor Thornhill, MD located?
The NPPES record lists a practice address at 15 Medical Park RD, Columbia, SC, 29203. Phone: (803) 434-4300. Providers update this record themselves, so call before visiting.
How can I verify Joshua Taylor Thornhill, MD's license?
NPPES lists South Carolina license number 15588, 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 Joshua Taylor Thornhill, MD prescribe under Medicare Part D?
In 2024, Joshua Taylor Thornhill, MD had 41 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Joshua Taylor Thornhill, MD's MIPS final score?
The 2023 MIPS final score is 99.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.