Dr. Warren R. Kemper, MD
- Medicare services, 2024
- 2,071
- Medicare patients, 2024
- 355
- Part D claims, 2024
- 14,138
- Hospital affiliations
- 5
- Industry payments
- $17,397
- Practice address
- 1 Audubon Plaza Dr, Louisville, KY 40217
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Norton Audubon Hospital-Pre Op/Post Op - HOPD
Acute Care Hospital outpatient department · Louisville, Kentucky
Find Dr. Kemper'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. Warren R. Kemper is an internist in Louisville, Kentucky
Dr. Kemper practices at Norton Audubon Hospital-Pre Op/Post Op - HOPD in Louisville, Kentucky.
Dr. Kemper's NPI, 1770595035, was assigned on August 13, 2006. Dr. Kemper graduated from University of Louisville School of Medicine in 1991. Dr. Kemper holds Kentucky license 27171.
- NPI
- 1770595035NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032376587
- NPI enumeration date
- August 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Warren R. Kemper practices at Norton Audubon Hospital-Pre Op/Post Op - HOPD in Louisville, Kentucky
Dr. Kemper's primary practice is Norton Audubon Hospital-Pre Op/Post Op - HOPD, at 1 Audubon Plaza Dr, Louisville, KY 40217.
- Norton Audubon Hospital-Pre Op/Post Op - HOPD1 Audubon Plaza Dr, Louisville, KY 40217
Source: Dmand AI Affiliation Data
Dr. Warren R. Kemper is affiliated with 10 sites of care and 1 medical group
Dr. Kemper's primary practice is Norton Audubon Hospital-Pre Op/Post Op - HOPD in Louisville, Kentucky. Dr. Kemper is also affiliated with Norton Hospital. The medical group on file is UofL Physicians, Radiology. Dmand AI also links Dr. Kemper to 4 more hospitals, 3 home health agencies and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Warren R. Kemper's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kemper practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Norton Audubon Hospital-Pre Op/Post Op - HOPD | Available with a free account |
| +9 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Warren R. Kemper is one of 1,380 internists in Kentucky
Internal medicine is Dr. Kemper's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kemper is licensed in Kentucky.
Specialties and state licenses
- Internal medicine, KentuckyPrimary
Internists near Dr. Kemper
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. Warren R. Kemper billed Medicare for 2,071 services in 2024
CMS data shows 2,071 Medicare services from Dr. Kemper across 19 procedure codes in 2024, for 355 Medicare patients. Medicare paid $97,828 for them. Every service was in an office.
Dr. Kemper's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2782024: 1,14111%
- Lab and pathology
- 2023: 3992024: 48421%
- Other services
- 2023: 4072024: 26036%
- Tests and treatments
- 2023: 1302024: 14713%
- Imaging
- 2023: 762024: 3949%
Dr. Kemper compared with the Kentucky median for internists, 2024
- Dr. Kemper
- Kentucky median
- Medicare services
- 2,071vs 6133.4 times
- Medicare patients
- 355vs 22359% above
- Part D claims
- 13,358vs 36836.3 times
Medians across 1,380 internists in Kentucky with Dmand AI profiles that report each measure.
Dr. Kemper'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. Kemper and other internists in Kentucky.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Warren R. Kemper treated 355 Medicare patients in 2024, average age 77
CMS counts 355 Medicare patients who saw Dr. Kemper in 2024. The largest group is 65 to 74, with 146 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kemper's median patient age at 72, with 52% women.
Dr. Kemper's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Kemper's Medicare patients by sex, 2024
- Women17449%
- Men18151%
Chronic conditions among Dr. Kemper's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Chronic kidney disease32%
- Ischemic heart disease30%
- Diabetes29%
- Osteoporosis28%
- Anxiety25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kemper's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Warren R. Kemper wrote 14,138 Medicare Part D claims in 2024
In 2024, Dr. Kemper wrote 14,138 Medicare Part D claims for 807 patients. 87% of them were for generic drugs. CMS names the drug for 13,358 of them, across 162 drugs with 11 or more claims each, at $1,289,323 in total drug cost. In 2023, CMS named 12,694 claims across 161 drugs.
Dr. Kemper's Part D claims by kind of drug, 2024
- Generic12,268 claims87%
- Brand-name1,799 claims13%
- Other71 claims1%
Dr. Kemper'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. Kemper's Part D claims, 2024
- Opioids4%528 of 14,138 claims
- Antibiotics3%449 of 14,138 claims
- Antipsychotics, patients 65 and over0%20 of 14,138 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: 12,6942024: 13,3585%
Drugs named by CMS: 162 in 2024, 161 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. Warren R. Kemper takes part in Medicare
Dr. Kemper 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. Warren R. Kemper received $17,397 in industry payments from 2016 to 2025
CMS Open Payments shows 1,161 general payments to Dr. Kemper from 44 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,631.
General payments to Dr. Kemper by program year, 2016 to 2025
General payments to Dr. Kemper by kind, 2016 to 2025
- Food and beverage$17,29299%
- Education$1051%
Companies that paid Dr. Kemper 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. Warren R. Kemper graduated from University of Louisville School of Medicine
Dr. Kemper graduated from University of Louisville School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Warren R. Kemper'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. Warren R. Kemper
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. Warren R. Kemper's NPI number?
Dr. Warren R. Kemper's NPI number is 1770595035. It was assigned on August 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Warren R. Kemper?
Dr. Warren R. Kemper is an internist in Louisville, Kentucky. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Warren R. Kemper practice?
Dr. Kemper practices at 1 Audubon Plaza Dr, Louisville, KY 40217. Dr. Kemper's primary practice is Norton Audubon Hospital-Pre Op/Post Op - HOPD in Louisville, Kentucky. Dmand AI also links Dr. Kemper to 4 hospitals, 3 home health agencies and 1 group practice or clinic.
What is Dr. Warren R. Kemper's medical license number?
Dr. Kemper holds Kentucky license 27171.
Which hospitals is Dr. Warren R. Kemper affiliated with?
Dr. Kemper is affiliated with Norton Hospital. Dmand AI links Dr. Kemper to 4 more hospitals.
What medical group is Dr. Warren R. Kemper part of?
Dr. Kemper is linked to UofL Physicians, Radiology.
Does Dr. Warren R. Kemper accept Medicare?
Yes. CMS data shows Dr. Kemper billed Medicare for 2,071 services in 2024, and Dr. Kemper accepts Medicare assignment.
How many Medicare patients does Dr. Warren R. Kemper see?
CMS counts 355 Medicare patients who saw Dr. Kemper in 2024, with an average age of 77.
What services does Dr. Warren R. Kemper bill to Medicare?
In 2024, Dr. Kemper's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and lab and pathology test (83036).
Where did Dr. Warren R. Kemper go to medical school?
Dr. Kemper graduated from University of Louisville School of Medicine in 1991.
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What drugs does Dr. Warren R. Kemper prescribe most?
In 2024 Medicare Part D data, Dr. Kemper's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Warren R. Kemper received payments from drug or device companies?
CMS Open Payments shows $17,397 in general payments to Dr. Kemper from 44 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Warren R. Kemper been practicing?
Dr. Kemper graduated from medical school in 1991, 35 years ago.
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