Dr. Terry A. Grainger, MD
- Medicare services, 2024
- 4,868
- Medicare patients, 2024
- 2,159
- Part D claims, 2024
- 988
- Hospital affiliations
- 5
- Industry payments
- $14,850
- Practice address
- 8 Richland Medical Park Dr, Columbia, SC 29203
- Practice phone
- Call (803) 765-0871
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prisma Health Cardiology - 8 Med Park
Columbia, South Carolina
Find Dr. Grainger's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Terry A. Grainger is a sleep medicine (internal medicine) physician in Columbia, South Carolina
Dr. Grainger practices at Prisma Health Cardiology - 8 Med Park in Columbia, South Carolina.
Dr. Grainger's NPI, 1003854464, was assigned on June 4, 2006. Dr. Grainger graduated from Medical University of South Carolina College of Medicine in 1987. Dr. Grainger holds South Carolina license 16593.
- NPI
- 1003854464NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486729886
- NPI enumeration date
- June 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 765-0871
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Terry A. Grainger practices at Prisma Health Cardiology - 8 Med Park in Columbia, South Carolina
Dr. Grainger's primary practice is Prisma Health Cardiology - 8 Med Park, at 8 Richland Medical Park Dr, Columbia, SC 29203 in Richland County. The practice phone is (803) 765-0871.
- Prisma Health Cardiology - 8 Med Park8 Richland Medical Park Dr, Columbia, SC 29203 · Richland CountyPhone(803) 765-0871
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Terry A. Grainger is affiliated with 10 sites of care and 5 medical groups
Dr. Grainger's primary practice is Prisma Health Cardiology - 8 Med Park in Columbia, South Carolina. Dr. Grainger is also affiliated with Prisma Health Richland Hospital. The medical group on file is Prisma Health Medical Group-Midlands. Dmand AI also links Dr. Grainger to 4 more hospitals, 4 group practices and clinics and 4 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Terry A. Grainger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grainger practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prisma Health Cardiology - 8 Med Park | Available with a free account |
| +9 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Terry A. Grainger is one of 14 sleep medicine (internal medicine) physicians in South Carolina
Internal medicine is Dr. Grainger's primary specialty in the NPI Registry, under taxonomy code 207RS0012X. The record also lists sleep medicine. Dr. Grainger is licensed in South Carolina.
Specialties and state licenses
- Sleep medicine (internal medicine), South CarolinaPrimary
Sleep medicine (internal medicine) physicians near Dr. Grainger
Counts of sleep medicine (internal medicine) physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Terry A. Grainger billed Medicare for 4,868 services in 2024
CMS data shows 4,868 Medicare services from Dr. Grainger across 35 procedure codes in 2024, for 2,159 Medicare patients. Medicare paid $235,592 for them.
Dr. Grainger's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,8982024: 3,11064%
- Office and hospital visits
- 2023: 1,5432024: 1,36112%
- Imaging
- 2023: 1512024: 23254%
- Surgery
- 2023: 1572024: 1655%
- Other services
- 2023: 942024: 0100%
Where Dr. Grainger's Medicare services took place, 2024
- In an office2,66655%
- In a facility2,20245%
Dr. Grainger compared with the South Carolina median for sleep medicine (internal medicine) physicians, 2024
- Dr. Grainger
- South Carolina median
- Medicare services
- 4,868vs 1,4843.3 times
- Part D claims
- 815vs 91611% below
Medians across 12 sleep medicine (internal medicine) physicians in South Carolina with Dmand AI profiles that report each measure.
Dr. Grainger's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Grainger?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grainger and other sleep medicine (internal medicine) physicians in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Terry A. Grainger treated 2,159 Medicare patients in 2024, average age 76
CMS counts 2,159 Medicare patients who saw Dr. Grainger in 2024. The largest group is 75 to 84, with 898 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.65, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Grainger's median patient age at 67, with 55% women.
Dr. Grainger's Medicare patients by age, 2024
Dr. Grainger's Medicare patients by sex, 2024
- Women1,18655%
- Men97345%
Chronic conditions among Dr. Grainger's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease48%
- Diabetes46%
- Chronic kidney disease41%
- Heart failure37%
- Atrial fibrillation36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grainger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Terry A. Grainger wrote 988 Medicare Part D claims in 2024
In 2024, Dr. Grainger wrote 988 Medicare Part D claims for 259 patients. 79% of them were for generic drugs. CMS names the drug for 815 of them, across 25 drugs with 11 or more claims each, at $185,738 in total drug cost. In 2023, CMS named 769 claims across 25 drugs.
Dr. Grainger's Part D claims by kind of drug, 2024
- Generic776 claims79%
- Brand-name212 claims21%
Dr. Grainger's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7692024: 8156%
Drugs named by CMS: 25 in 2024, 25 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Terry A. Grainger takes part in Medicare
Dr. Grainger accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Terry A. Grainger received $14,850 in industry payments from 2016 to 2025
CMS Open Payments shows 747 general payments to Dr. Grainger from 47 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $2,456.
General payments to Dr. Grainger by program year, 2016 to 2025
General payments to Dr. Grainger by kind, 2016 to 2025
- Food and beverage$14,846100%
- Education$40%
Companies that paid Dr. Grainger the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Terry A. Grainger graduated from Medical University of South Carolina College of Medicine
Dr. Grainger graduated from Medical University of South Carolina College of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Terry A. Grainger's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Terry A. Grainger
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Terry A. Grainger's NPI number?
Dr. Terry A. Grainger's NPI number is 1003854464. It was assigned on June 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Terry A. Grainger?
Dr. Terry A. Grainger is a sleep medicine (internal medicine) physician in Columbia, South Carolina. The primary specialty in the NPI Registry is Sleep Medicine (Internal Medicine) Physician (taxonomy code 207RS0012X).
Where does Dr. Terry A. Grainger practice?
Dr. Grainger practices at 8 Richland Medical Park Dr, Columbia, SC 29203. Dr. Grainger's primary practice is Prisma Health Cardiology - 8 Med Park in Columbia, South Carolina. Dmand AI also links Dr. Grainger to 4 hospitals, 4 group practices and clinics and 4 medical groups.
What is Dr. Terry A. Grainger's office phone number?
The practice phone on file for Dr. Grainger is (803) 765-0871.
What is Dr. Terry A. Grainger's medical license number?
Dr. Grainger holds South Carolina license 16593.
Which hospitals is Dr. Terry A. Grainger affiliated with?
Dr. Grainger is affiliated with Prisma Health Richland Hospital. Dmand AI links Dr. Grainger to 4 more hospitals.
What medical group is Dr. Terry A. Grainger part of?
Dr. Grainger is linked to Prisma Health Medical Group-Midlands. Dmand AI links Dr. Grainger to 4 more medical groups.
Does Dr. Terry A. Grainger accept Medicare?
Yes. CMS data shows Dr. Grainger billed Medicare for 4,868 services in 2024, and Dr. Grainger accepts Medicare assignment.
How many Medicare patients does Dr. Terry A. Grainger see?
CMS counts 2,159 Medicare patients who saw Dr. Grainger in 2024, with an average age of 76.
What services does Dr. Terry A. Grainger bill to Medicare?
In 2024, Dr. Grainger's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93010) and heart test or procedure (93000).
Show 4 more questionsShow fewer questions
Where did Dr. Terry A. Grainger go to medical school?
Dr. Grainger graduated from Medical University of South Carolina College of Medicine in 1987.
What drugs does Dr. Terry A. Grainger prescribe most?
In 2024 Medicare Part D data, Dr. Grainger's most prescribed drugs by claims were Eliquis, Carvedilol and Amlodipine Besylate.
Has Dr. Terry A. Grainger received payments from drug or device companies?
CMS Open Payments shows $14,850 in general payments to Dr. Grainger from 47 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Terry A. Grainger been practicing?
Dr. Grainger graduated from medical school in 1987, 39 years ago.
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