Bret M. Garretson, MD
Gastroenterology Physician · Rock Hill, SC
Bret M. Garretson, MD is a gastroenterology physician with a practice address in Rock Hill, South Carolina, and NPI 1760443352, issued on Mar 31, 2006. Check the license (South Carolina 26839, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Bret M. Garretson
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 26839 SC
Self-reported in NPPES; status is on the state search - Practice location
- 170 Amendment Ave, Rock Hill, SC 29732
- Phone
- (803) 324-7607
- Enumerated
- Mar 31, 2006
- Record last updated
- Jun 10, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (803) 324-1449
- Medicaid ID
- 268392 SC
- Medicare enrollment
- Enrolled (PECOS I20040625000274); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In Shreveport, 1996
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 303 in South Carolina → Look up another NPI →
Also registered at 170 Amendment Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Bott, MDGastroenterology Physician1255392072
- Liudmila CassidyAdult Health Nurse Practitioner1477268464
- Sarah Christ, FNPFamily Nurse Practitioner1063113736
- Chiemeziem Eke, MDGastroenterology Physician1417485376
- Monica Freeman, NURSE PRACTITIONERFamily Nurse Practitioner1629538939
- Catherine Gracey, APRN.CNPNurse Practitioner1679244651
Verify Bret M. Garretson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 26839Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average gastroenterology physician in 2024
150 Medicare Part D claims for 83 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Pantoprazole Sodium48 claims
- Sod Sulf-Potass Sulf-Mag Sulf13 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 practice group's MIPS final score for 2023 (Medicare payment program): 78.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Digestive Disease Associates OF York Coutny PARock Hill, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bret M. Garretson among 303 gastroenterology physician records in South Carolina
Bret M. Garretson, MD is one of 303 gastroenterology physician records with a practice address in South Carolina. 82% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 44% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1996 · median 2005 among the 217 with a school on file
- Record last updated2011 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in South Carolina
There are 303 gastroenterology physician records in South Carolina.
All 303 in South Carolina → Every provider in Rock Hill → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Stephen Bott, MDRock Hill, SC 297321255392072
- Chiemeziem Eke, MDRock Hill, SC 297321417485376
- Larry Pennington, MDRock Hill, SC 297321962463554
- Amir Rezk, M.D.Rock Hill, SC 297321558626234
- Scott Richardson, MDRock Hill, SC 297321669437125
- Randolph Rodrigue, MDRock Hill, SC 297321104880095
- Birju Shah, D.O.Rock Hill, SC 297321326335977
- Victor Amato, MDLancaster, SC 297201053325076
Common questions
What is Bret M. Garretson, MD's NPI number?
Bret M. Garretson, MD's National Provider Identifier (NPI) is 1760443352, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bret M. Garretson, MD located?
The NPPES record lists a practice address at 170 Amendment Ave, Rock Hill, SC, 29732. Phone: (803) 324-7607. Providers update this record themselves, so call before visiting.
How can I verify Bret M. Garretson, MD's license?
NPPES lists South Carolina license number 26839, 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 Bret M. Garretson, MD prescribe under Medicare Part D?
In 2024, Bret M. Garretson, MD had 150 Medicare Part D claims for 83 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Bret M. Garretson, MD's MIPS final score?
The 2023 MIPS final score is 78.7 of 100, reported for the practice group. 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.