Gary Joseph Barrett, MD
Internal Medicine Physician · Loris, SC
Gary Joseph Barrett, MD is an internal medicine physician with a practice address in Loris, South Carolina, and NPI 1578571592, issued on Aug 4, 2006. Check the license (South Carolina SC11051, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gary Joseph Barrett
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- SC11051 SC
Self-reported in NPPES; status is on the state search - Practice location
- 3109 Casey St, Loris, SC 29569
- Phone
- (843) 756-8090
- Enumerated
- Aug 4, 2006
- Record last updated
- Feb 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (843) 756-6122
- Medicaid ID
- GB0648 SC
- Medicare enrollment
- Enrolled (PECOS I20120105001021); accepts Medicare assignment
- Medical or professional school
- Medical College Of Pennsylvania, 1979
- Entity
- Type 1 · individual
Also registered at 3109 Casey St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wanda Grainger, FNPFamily Nurse Practitioner1073684577
- Donna Sellers, FNPFamily Nurse Practitioner1316267396
- Ashley Tiller, PA-CPhysician Assistant1700451499
- Ashley Wilson, P.A.Physician Assistant1487655106
Verify Gary Joseph Barrett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license SC11051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average internal medicine physician in 2024
8,631 Medicare Part D claims for 459 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 182 claims were for opioids.
Most prescribed
- Atorvastatin Calcium413 claims
- Levothyroxine Sodium338 claims
- Amlodipine Besylate283 claims
- Omeprazole249 claims
- Pantoprazole Sodium239 claims
- Lisinopril235 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: $557.64
30 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Mcleod Physician Associates IIFlorence, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
6 internal medicine physician records list a practice address in Loris
They are 6 of the 129 NPPES records with a practice address in Loris, and 1,881 internal medicine physician records in South Carolina.
All 6 in Loris → All 1,881 in South Carolina → Every provider in Loris →
Other internal medicine physician records in South Carolina
- Sheharyar Abbasi, DOMyrtle Beach, SC1619617222
- John Abbott, M.D.Sumter, SC1093830762
- Amjad Abdulrahman, MDIrmo, SC1194718841
- Alvin Abinsay, M.D.Marion, SC1689608002
- Izabela Abissi, DOCharleston, SC1376387803
- Tinu Abraham, MDGreenwood, SC1194354399
- Natallia Abramovich, MDSeneca, SC1568647949
- Ibrahim Abu Dayah, MDMyrtle Beach, SC1306368667
- Lauren Abusal, MD, MSCRMyrtle Beach, SC1093552911
- John Adams, MDElgin, SC1750395570
Common questions
What is Gary Joseph Barrett, MD's NPI number?
Gary Joseph Barrett, MD's National Provider Identifier (NPI) is 1578571592, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary Joseph Barrett, MD located?
The NPPES record lists a practice address at 3109 Casey St, Loris, SC, 29569. Phone: (843) 756-8090. Providers update this record themselves, so call before visiting.
How can I verify Gary Joseph Barrett, MD's license?
NPPES lists South Carolina license number SC11051, 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 Gary Joseph Barrett, MD prescribe under Medicare Part D?
In 2024, Gary Joseph Barrett, MD had 8,631 Medicare Part D claims for 459 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.