Terry A. Grainger, MD
Sleep Medicine (Internal Medicine) Physician · Columbia, SC
Terry A. Grainger, MD is a sleep medicine (internal medicine) physician with a practice address in Columbia, South Carolina, and NPI 1003854464, issued on Jun 4, 2006. Check the license (South Carolina 16593, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Terry A. Grainger
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- 16593 SC
Self-reported in NPPES; status is on the state search - Practice location
- 8 Richland Medical Park Dr Ste 100, Columbia, SC 29203
- Phone
- (803) 434-3800
- Enumerated
- Jun 4, 2006
- Record last updated
- Sep 30, 2025
- Fax
- (803) 744-2759
- Medicaid ID
- 165939 SC
- Medicare enrollment
- Enrolled (PECOS I20080820000084); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 14 in South Carolina → Look up another NPI →
Also registered at 8 Richland Medical Park Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Allgrim, ACNPAcute Care Nurse Practitioner1669808382
- Rodel Bobadilla, N.P.Family Nurse Practitioner1942312111
- Micheal Bunger, ACNPAcute Care Nurse Practitioner1881933885
- Chloe CobbPhysician Assistant1124812557
- Hannah CountsPhysician Assistant1639845589
- Michael Cryer, M.D.Interventional Cardiology Physician1285047191
Verify Terry A. Grainger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 16593Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
988 Medicare Part D claims for 259 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Eliquis116 claims
- Carvedilol114 claims
- Amlodipine Besylate84 claims
- Atorvastatin Calcium71 claims
- Metoprolol Succinate43 claims
- Flecainide Acetate38 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).
Industry payments in 2024: $2,090.14
104 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 664 providers of this specialty with any payment received $3,724.37 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.
2 hospitals and group practices
- Beaufort County Memorial HospitalBeaufort, SC · Acute Care Hospitals4 of 5 stars
- Prisma Health Medical Group-MidlandsColumbia, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Terry A. Grainger among 14 sleep medicine (internal medicine) physician records in South Carolina
Terry A. Grainger, MD is one of 14 sleep medicine (internal medicine) physician records with a practice address in South Carolina. 71% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 14% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1987 · median 1990 among the 10 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in South Carolina
There are 14 sleep medicine (internal medicine) physician records in South Carolina.
All 14 in South Carolina → Every provider in Columbia → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- William Hollins, MDColumbia, SC 292031164422820
- Antoinette Rutherford, M.D.Columbia, SC 292031740316934
- Rodney Harrison, MDColumbia, SC 292121962448712
- Luis De La Cruz, MDSpartanburg, SC 293031033138912
- Megan Brunckhorst, MDCharleston, SC 294251538654025
- Fitzgerald Drummond, MDCharleston, SC 294251700838943
- Jigme Sethi, MDCharlestib, SC 294251891760708
- Luminita Tudor, M.D.Charleston, SC 294251578537197
Common questions
What is Terry A. Grainger, MD's NPI number?
Terry A. Grainger, MD's National Provider Identifier (NPI) is 1003854464, issued on Jun 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Terry A. Grainger, MD located?
The NPPES record lists a practice address at 8 Richland Medical Park Dr Ste 100, Columbia, SC, 29203. Phone: (803) 434-3800. Providers update this record themselves, so call before visiting.
How can I verify Terry A. Grainger, MD's license?
NPPES lists South Carolina license number 16593, 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 Terry A. Grainger, MD prescribe under Medicare Part D?
In 2024, Terry A. Grainger, MD had 988 Medicare Part D claims for 259 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.
What is Terry A. Grainger, 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.