Doctor profile · Federal record

Dr. Terry Grainger, MD

Sleep Medicine (Internal Medicine) Physician (CMS: Cardiovascular Disease (Cardiology)) · Cardiovascular Disease Physician · Columbia, SC

  • NPI 1003854464
  • Accepts Medicare
  • MIPS 95.3 / 100 · 2023
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8 Richland Medical Park Dr Ste 100
Columbia, SC 29203
(803) 434-3800
fax (803) 744-2759
Mailing address
300 E McBee Ave Fl 4
Greenville, SC 296012842

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
September 30, 2025
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
207RS0012X — NUCC code
State license (1)
South Carolina #16593
Medicaid
SC #165939

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003854464. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,843
Distinct HCPCS
10
Medicare allowed
$282,061
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,196 693 $121
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 486 407 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 229 197 $85
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 191 189 $65
36415 Insertion of needle into vein for collection of blood sample 157 133 $8
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 145 145 $13
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 142 141 $181
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect 140 140 $73
93296 Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 125 74 $21
93294 Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 106 61 $29

In context: peer comparison

Among 3 peers in Columbia Sleep Medicine (Internal Medicine) Physician, average services per provider: 103. This provider delivers 37× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,090
Transactions
95
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 21 $447.72
Philips North America LLC 10 $215.89
Abbott Laboratories 7 $162.43
Amgen INC. 11 $160.17
Boston Scientific Corporation 4 $143.90
Merck Sharp & Dohme LLC 5 $106.10
Alnylam Pharmaceuticals INC. 4 $101.96
Scpharmaceuticals INC. 5 $88.23
Boehringer Ingelheim Pharmaceuticals, INC. 5 $85.63
Pfizer INC. 5 $85.41
Zoll Services LLC (A/K/A Zoll LifeCor Corp) 4 $69.79
Bayer Healthcare Pharmaceuticals INC. 4 $61.81
E.R. Squibb & Sons, L.L.C. 4 $60.33
AstraZeneca Pharmaceuticals Lp 4 $57.09
Kiniksa Pharmaceuticals International, Plc 2 $46.49

By nature of payment

Food and Beverage
$2,090

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
617
Patients
222
Total drug cost
$163,729
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 93 34 $90,082
Carvedilol Generic 91 42 $1,285
Amlodipine Besylate Generic 78 35 $549
Metoprolol Succinate Generic 44 21 $824
Rosuvastatin Calcium Generic 39 15 $1,517
Entresto (Sacubitril/Valsartan) Brand 37 11 $46,510
Losartan Potassium Generic 37 21 $641
Atorvastatin Calcium Generic 33 16 $539
Metoprolol Tartrate Generic 30 14 $370
Isosorbide Mononitrate ER (Isosorbide Mononitrate) Brand 27 0 $676

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Terry Grainger's medical specialty?
Dr. Terry Grainger practices Sleep Medicine (Internal Medicine) Physician in Columbia, SC.
Where does Dr. Terry Grainger practice?
Dr. Terry Grainger practices at 8 Richland Medical Park Dr Ste 100, Columbia, SC 29203. Office phone: 8034343800.
What is Dr. Terry Grainger's NPI?
Dr. Terry Grainger's National Provider Identifier (NPI) is 1003854464, issued by NPPES.
Does Dr. Terry Grainger accept Medicare assignment?
Yes. Dr. Terry Grainger accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Terry Grainger commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.