Dr. David I. Gaines, MD
- Medicare services, 2024
- 1,423
- Medicare patients, 2024
- 688
- Part D claims, 2024
- 1,233
- Hospital affiliations
- 5
- Industry payments
- $466
- Practice address
- 125 Halton Rd, Greenville, SC 29607
- Practice phone
- Call (864) 232-7338
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gastroenterology Associates, PA
Greenville, South Carolina
Find Dr. Gaines' 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. David I. Gaines is a gastroenterologist in Greenville, South Carolina
Dr. Gaines practices at Gastroenterology Associates, PA in Greenville, South Carolina.
Dr. Gaines' NPI, 1689618753, was assigned on June 16, 2006. Dr. Gaines graduated from University of Alabama School of Medicine in 2000. Dr. Gaines holds South Carolina license 26756.
- NPI
- 1689618753NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052339181
- NPI enumeration date
- June 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (864) 232-7338
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David I. Gaines practices at Gastroenterology Associates, PA in Greenville, South Carolina
Dr. Gaines' primary practice is Gastroenterology Associates, PA, at 125 Halton Rd, Greenville, SC 29607 in Greenville County. The practice phone is (864) 232-7338.
- Gastroenterology Associates, PA125 Halton Rd, Greenville, SC 29607 · Greenville CountyPhone(864) 232-7338
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David I. Gaines is affiliated with 7 sites of care and 1 medical group
Dr. Gaines' primary practice is Gastroenterology Associates, PA in Greenville, South Carolina. Dr. Gaines is also affiliated with Prisma Health Greenville Memorial Hospital. The medical group on file is Gastroenterology Associates. Dmand AI also links Dr. Gaines to 4 more hospitals and 1 group practice or clinic, 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. David I. Gaines' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gaines practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gastroenterology Associates, PA | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David I. Gaines is one of 255 gastroenterologists in South Carolina
Gastroenterology is Dr. Gaines' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Gaines is licensed in South Carolina.
Specialties and state licenses
- Gastroenterology, South CarolinaPrimary
Gastroenterologists near Dr. Gaines
Counts of gastroenterologists 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. David I. Gaines billed Medicare for 1,423 services in 2024
CMS data shows 1,423 Medicare services from Dr. Gaines across 16 procedure codes in 2024, for 688 Medicare patients. Medicare paid $111,607 for them.
Dr. Gaines' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4412024: 4799%
- Lab and pathology
- 2023: 4942024: 4509%
- Surgery
- 2023: 3602024: 361No change
- Other services
- 2023: 802024: 11544%
- Imaging
- 2023: 172024: 186%
Where Dr. Gaines' Medicare services took place, 2024
- In an office94767%
- In a facility47633%
Dr. Gaines compared with the South Carolina median for gastroenterologists, 2024
- Dr. Gaines
- South Carolina median
- Medicare services
- 1,423vs 74591% above
- Medicare patients
- 688vs 44555% above
- Part D claims
- 1,028vs 4972.1 times
Medians across 249 gastroenterologists in South Carolina with Dmand AI profiles that report each measure.
Dr. Gaines' 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. Gaines?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gaines and other gastroenterologists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David I. Gaines treated 688 Medicare patients in 2024, average age 73
CMS counts 688 Medicare patients who saw Dr. Gaines in 2024. The largest group is 65 to 74, with 392 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 3% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gaines' median patient age at 63, with 58% women.
Dr. Gaines' Medicare patients by age, 2024
Dr. Gaines' Medicare patients by sex, 2024
- Women40058%
- Men28842%
Chronic conditions among Dr. Gaines' Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis50%
- Ischemic heart disease30%
- Mood disorders28%
- Anxiety27%
- Depression27%
- Diabetes25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gaines' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David I. Gaines wrote 1,233 Medicare Part D claims in 2024
In 2024, Dr. Gaines wrote 1,233 Medicare Part D claims for 396 patients. 87% of them were for generic drugs. CMS names the drug for 1,028 of them, across 26 drugs with 11 or more claims each, at $959,640 in total drug cost. In 2023, CMS named 1,013 claims across 28 drugs.
Dr. Gaines' Part D claims by kind of drug, 2024
- Generic1,068 claims87%
- Brand-name165 claims13%
Dr. Gaines' 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.
Drug classes CMS tracks in Dr. Gaines' Part D claims, 2024
- Opioids3%31 of 1,233 claims
- Antibiotics4%45 of 1,233 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,0132024: 1,0281%
Drugs named by CMS: 26 in 2024, 28 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
Dr. David I. Gaines ranks in the 88th percentile for colonoscopy in Medicare
Dr. Gaines accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 147 procedures of colonoscopy by Dr. Gaines, more than 88% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Gaines ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 86th percentile162 procedures
- Colonoscopy
- 88th percentile147 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David I. Gaines received $466 in industry payments from 2017 to 2025
CMS Open Payments shows 25 general payments to Dr. Gaines from 11 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $177.
General payments to Dr. Gaines by program year, 2017 to 2025
Companies that paid Dr. Gaines the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David I. Gaines graduated from University of Alabama School of Medicine
Dr. Gaines graduated from University of Alabama School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David I. Gaines'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)Doctors and Clinicians Utilization Data (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. David I. Gaines
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. David I. Gaines' NPI number?
Dr. David I. Gaines' NPI number is 1689618753. It was assigned on June 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David I. Gaines?
Dr. David I. Gaines is a gastroenterologist in Greenville, South Carolina. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. David I. Gaines practice?
Dr. Gaines practices at 125 Halton Rd, Greenville, SC 29607. Dr. Gaines' primary practice is Gastroenterology Associates, PA in Greenville, South Carolina. Dmand AI also links Dr. Gaines to 4 hospitals and 1 group practice or clinic.
What is Dr. David I. Gaines' office phone number?
The practice phone on file for Dr. Gaines is (864) 232-7338.
What is Dr. David I. Gaines' medical license number?
Dr. Gaines holds South Carolina license 26756.
Which hospitals is Dr. David I. Gaines affiliated with?
Dr. Gaines is affiliated with Prisma Health Greenville Memorial Hospital. Dmand AI links Dr. Gaines to 4 more hospitals.
What medical group is Dr. David I. Gaines part of?
Dr. Gaines is linked to Gastroenterology Associates.
Does Dr. David I. Gaines accept Medicare?
Yes. CMS data shows Dr. Gaines billed Medicare for 1,423 services in 2024, and Dr. Gaines accepts Medicare assignment.
How many Medicare patients does Dr. David I. Gaines see?
CMS counts 688 Medicare patients who saw Dr. Gaines in 2024, with an average age of 73.
What services does Dr. David I. Gaines bill to Medicare?
In 2024, Dr. Gaines' most billed Medicare services were lab and pathology test (88305), office visit, established patient (99213) and office visit, established patient (99214).
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Where did Dr. David I. Gaines go to medical school?
Dr. Gaines graduated from University of Alabama School of Medicine in 2000.
What drugs does Dr. David I. Gaines prescribe most?
In 2024 Medicare Part D data, Dr. Gaines' most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-G.
Has Dr. David I. Gaines received payments from drug or device companies?
CMS Open Payments shows $466 in general payments to Dr. Gaines from 11 companies from 2017 to 2025. The largest total came from Abbvie Inc.
How long has Dr. David I. Gaines been practicing?
Dr. Gaines graduated from medical school in 2000, 26 years ago.
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