Dr. David Wayne Koontz, MD
- Medicare services, 2024
- 15,889
- Medicare patients, 2024
- 500
- Part D claims, 2024
- 9,282
- Hospital affiliations
- 6
- Industry payments
- $623
- Practice address
- 1025 Verdae Blvd, Greenville, SC 29607
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Internal Medicine Associates of Greenville - HOPD
Acute Care Hospital outpatient department · Greenville, South Carolina
Find Dr. Koontz'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. David Wayne Koontz is an internist in Greenville, South Carolina
Dr. Koontz practices at Internal Medicine Associates of Greenville - HOPD in Greenville, South Carolina.
Dr. Koontz's NPI, 1750366647, was assigned on December 13, 2005. Dr. Koontz graduated from Wake Forest University School of Medicine in 1998. Dr. Koontz holds South Carolina license 22464.
- NPI
- 1750366647NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527038033
- NPI enumeration date
- December 13, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Wayne Koontz practices at Internal Medicine Associates of Greenville - HOPD in Greenville, South Carolina
Dr. Koontz's primary practice is Internal Medicine Associates of Greenville - HOPD, at 1025 Verdae Blvd, Greenville, SC 29607.
- Internal Medicine Associates of Greenville - HOPD1025 Verdae Blvd, Greenville, SC 29607
Source: Dmand AI Affiliation Data
Dr. David Wayne Koontz is affiliated with 15 sites of care and 3 medical groups
Dr. Koontz's primary practice is Internal Medicine Associates of Greenville - HOPD in Greenville, South Carolina. Dr. Koontz is also affiliated with Prisma Health Greenville Memorial Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Koontz to 5 more hospitals, 3 group practices and clinics, 3 home health agencies, 2 medical groups, 1 therapy and rehab clinic and 1 skilled nursing facility, each named with a free account. Dr. Koontz's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Wayne Koontz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koontz practices, 15 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Internal Medicine Associates of Greenville - HOPD | Available with a free account |
| +14 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Wayne Koontz is one of 1,707 internists in South Carolina
Internal medicine is Dr. Koontz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Koontz is licensed in South Carolina.
Specialties and state licenses
- Internal medicine, South CarolinaPrimary
Internists near Dr. Koontz
Counts of internists 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 Wayne Koontz billed Medicare for 15,889 services in 2024
CMS data shows 15,889 Medicare services from Dr. Koontz across 53 procedure codes in 2024, for 500 Medicare patients. Medicare paid $347,157 for them. Every service was in an office.
Dr. Koontz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 5,8752024: 5,5605%
- Drugs given in the office
- 2023: 2,0002024: 3,30965%
- Other services
- 2023: 1,6432024: 2,93679%
- Office and hospital visits
- 2023: 2,1642024: 2,56819%
- Surgery
- 2023: 9122024: 8813%
- Tests and treatments
- 2023: 3502024: 44126%
- Imaging
- 2023: 1642024: 19418%
Dr. Koontz compared with the South Carolina median for internists, 2024
- Dr. Koontz
- South Carolina median
- Medicare services
- 15,889vs 74021.5 times
- Medicare patients
- 500vs 25894% above
- Part D claims
- 8,569vs 33125.9 times
Medians across 1,708 internists in South Carolina with Dmand AI profiles that report each measure.
Dr. Koontz'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koontz and other internists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Wayne Koontz treated 500 Medicare patients in 2024, average age 76
CMS counts 500 Medicare patients who saw Dr. Koontz in 2024. The largest group is 65 to 74, with 207 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Koontz's median patient age at 71, with 51% women.
Dr. Koontz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Koontz's Medicare patients by sex, 2024
- Women26653%
- Men23447%
Chronic conditions among Dr. Koontz's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis49%
- Chronic kidney disease46%
- Osteoporosis44%
- Anxiety36%
- Mood disorders27%
- Depression25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koontz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Wayne Koontz wrote 9,282 Medicare Part D claims in 2024
In 2024, Dr. Koontz wrote 9,282 Medicare Part D claims for 646 patients. 89% of them were for generic drugs. CMS names the drug for 8,569 of them, across 131 drugs with 11 or more claims each, at $675,254 in total drug cost. In 2023, CMS named 7,995 claims across 128 drugs.
Dr. Koontz's Part D claims by kind of drug, 2024
- Generic8,263 claims89%
- Brand-name982 claims11%
- Other37 claims0%
Dr. Koontz'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.
Drug classes CMS tracks in Dr. Koontz's Part D claims, 2024
- Opioids1%116 of 9,282 claims
- Antibiotics3%248 of 9,282 claims
- Antipsychotics, patients 65 and over0%40 of 9,282 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: 7,9952024: 8,5697%
Drugs named by CMS: 131 in 2024, 128 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 Wayne Koontz offers telehealth to Medicare patients
Dr. Koontz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Koontz as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Wayne Koontz received $623 in industry payments from 2016 to 2023
CMS Open Payments shows 3 general payments to Dr. Koontz from 2 drug and device companies from 2016 to 2023. Speaker and faculty fees make up the largest share, 96% of the total. Tandem Diabetes Care, Inc. paid the most, $600.
General payments to Dr. Koontz by program year, 2016 to 2023
General payments to Dr. Koontz by kind, 2016 to 2023
- Speaker and faculty fees$60096%
- Food and beverage$234%
Companies that paid Dr. Koontz the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Wayne Koontz graduated from Wake Forest University School of Medicine
Dr. Koontz graduated from Wake Forest University School of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Wayne Koontz'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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. David Wayne Koontz
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 Wayne Koontz's NPI number?
Dr. David Wayne Koontz's NPI number is 1750366647. It was assigned on December 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David Wayne Koontz?
Dr. David Wayne Koontz is an internist in Greenville, South Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Wayne Koontz practice?
Dr. Koontz practices at 1025 Verdae Blvd, Greenville, SC 29607. Dr. Koontz's primary practice is Internal Medicine Associates of Greenville - HOPD in Greenville, South Carolina. Dmand AI also links Dr. Koontz to 5 hospitals, 3 group practices and clinics, 3 home health agencies, 2 medical groups, 1 therapy and rehab clinic and 1 skilled nursing facility.
What is Dr. David Wayne Koontz's medical license number?
Dr. Koontz holds South Carolina license 22464.
Which hospitals is Dr. David Wayne Koontz affiliated with?
Dr. Koontz is affiliated with Prisma Health Greenville Memorial Hospital. Dmand AI links Dr. Koontz to 5 more hospitals.
What medical group is Dr. David Wayne Koontz part of?
Dr. Koontz is linked to Prisma Health Medical Group. Dmand AI links Dr. Koontz to 2 more medical groups.
Does Dr. David Wayne Koontz accept Medicare?
Yes. CMS data shows Dr. Koontz billed Medicare for 15,889 services in 2024, and Dr. Koontz accepts Medicare assignment.
Does Dr. David Wayne Koontz offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Koontz as offering telehealth services.
How many Medicare patients does Dr. David Wayne Koontz see?
CMS counts 500 Medicare patients who saw Dr. Koontz in 2024, with an average age of 76.
What services does Dr. David Wayne Koontz bill to Medicare?
In 2024, Dr. Koontz's most billed Medicare services were injected or infused drug (J0897), medicare temporary code (Q9967) and office visit, established patient (99214).
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Where did Dr. David Wayne Koontz go to medical school?
Dr. Koontz graduated from Wake Forest University School of Medicine in 1998.
What drugs does Dr. David Wayne Koontz prescribe most?
In 2024 Medicare Part D data, Dr. Koontz's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. David Wayne Koontz received payments from drug or device companies?
CMS Open Payments shows $623 in general payments to Dr. Koontz from 2 companies from 2016 to 2023. The largest total came from Tandem Diabetes Care, Inc.
How long has Dr. David Wayne Koontz been practicing?
Dr. Koontz graduated from medical school in 1998, 28 years ago.
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