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Dr. David W. Koeper, MD
NPI1487698387PAC ID9234030206
- Medicare services, 2024
- 1,128
- Medicare patients, 2024
- 277
- Part D claims, 2024
- 780
- Publications
- 1
- Clinical trials
- 1
- Practice address
- 414 Doctors Ct, Oshkosh, WI 54901
- Practice phone
- Call (920) 997-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fresenius Medical Care Appleton
Oshkosh, Wisconsin
Find Dr. Koeper'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 W. Koeper is a nephrologist in Oshkosh, Wisconsin
Dr. Koeper practices at Fresenius Medical Care Appleton in Oshkosh, Wisconsin.
Dr. Koeper's NPI, 1487698387, was assigned on June 15, 2006. Dr. Koeper graduated from Loyola University Chicago Stritch School of Medicine in 1997. Dr. Koeper's Wisconsin license number on file is 42143.
NPI and contact details
- NPI
- 1487698387NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234030206
- NPI enumeration date
- June 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (920) 997-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David W. Koeper practices at Fresenius Medical Care Appleton in Oshkosh, Wisconsin
Dr. Koeper's primary practice is Fresenius Medical Care Appleton, at 414 Doctors Ct, Oshkosh, WI 54901 in Winnebago County. The practice phone is (920) 997-8600.
- Fresenius Medical Care Appleton414 Doctors Ct, Oshkosh, WI 54901 · Winnebago CountyPhone(920) 997-8600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David W. Koeper is affiliated with 12 sites of care and 3 medical groups
Dr. Koeper's primary practice is Fresenius Medical Care Appleton in Oshkosh, Wisconsin. Dr. Koeper is also affiliated with ThedaCare Regional Medical Center-Neenah. The medical group on file is Prevea Health. Dmand AI also links Dr. Koeper to 4 more hospitals, 4 dialysis centers, 2 group practices and clinics and 2 medical groups, each named with a free account.
Fresenius Medical Care AppletonPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David W. Koeper's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Koeper practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fresenius Medical Care Appleton | Available with a free account |
| +11 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. David W. Koeper is one of 168 nephrologists in Wisconsin
Nephrology is Dr. Koeper's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Koeper is board certified in nephrology by the American Board of Internal Medicine. Dmand AI has Dr. Koeper's licenses on file in 3 states: Wisconsin, Michigan and Illinois.
Specialties and state licenses
- Nephrology, WisconsinPrimary
- Michigan license
- Illinois license
Clinical focus
Dmand AI lists acute kidney failure, chronic anemia, chronic hypertension, chronic kidney disease, fluid and electrolyte imbalances and UTI among the conditions Dr. Koeper treats.
Nephrologists near Dr. Koeper
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
168nephrologists in Wisconsin
4nephrologists in Oshkosh
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. David W. Koeper billed Medicare for 1,128 services in 2024
CMS data shows 1,128 Medicare services from Dr. Koeper across 12 procedure codes in 2024, for 277 Medicare patients. Medicare paid $132,095 for them.
Medicare services, 20241,128
Medicare patients277
Paid by Medicare$132,095
Procedure codes12
Dr. Koeper's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 4562024: 64541%
- Office and hospital visits
- 2023: 4542024: 4714%
- Imaging
- 2023: 02024: 12
- Surgery
- 2023: 122024: 0100%
Where Dr. Koeper's Medicare services took place, 2024
- In an office71864%
- In a facility41036%
Dr. Koeper compared with the Wisconsin median for nephrologists, 2024
- Dr. Koeper
- Wisconsin median
- Medicare services
- 1,128vs 67767% above
- Medicare patients
- 277vs 23617% above
- Part D claims
- 610vs 6516% below
Medians across 167 nephrologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Koeper'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. Koeper?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Koeper and other nephrologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David W. Koeper treated 277 Medicare patients in 2024, average age 70
CMS counts 277 Medicare patients who saw Dr. Koeper in 2024. The largest group is 65 to 74, with 112 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 5.05, 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. Koeper's median patient age at 70, with 43% women.
Medicare patients, 2024277
Average age70
Average risk score5.05
Also on Medicaid22%
Dr. Koeper's Medicare patients by age, 2024
Dr. Koeper's Medicare patients by sex, 2024
- Women12144%
- Men15656%
Chronic conditions among Dr. Koeper's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes62%
- Heart failure55%
- Ischemic heart disease51%
- Arthritis41%
- Atrial fibrillation38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Koeper's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women43%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David W. Koeper wrote 780 Medicare Part D claims in 2024
In 2024, Dr. Koeper wrote 780 Medicare Part D claims for 117 patients. 78% of them were for generic drugs. CMS names the drug for 610 of them, across 24 drugs with 11 or more claims each, at $355,580 in total drug cost. In 2023, CMS named 646 claims across 22 drugs.
Part D claims, 2024780
Drugs named by CMS24
Total drug cost$355,580
Part D patients117
Dr. Koeper's Part D claims by kind of drug, 2024
- Generic611 claims78%
- Brand-name169 claims22%
Dr. Koeper'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: 6462024: 6106%
Drugs named by CMS: 24 in 2024, 22 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. David W. Koeper takes part in Medicare
Dr. Koeper 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. David W. Koeper has 1 publication on record
Dmand AI links 1 paper to Dr. Koeper. Dr. Koeper's most frequent co-author is Pablo Ezequiel Pergola, MD.
Papers1
Dr. Koeper's most frequent co-authors
Recent publications by Dr. Koeper
See who Dr. Koeper researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Koeper works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David W. Koeper has worked on 1 clinical trial
Dmand AI links Dr. Koeper to 1 clinical trial.
Investigators on the most trials with Dr. Koeper
Recent clinical trials with Dr. Koeper
PA21 (2.5 g tablet containing 500 mg iron)Sevelamer carbonate
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. David W. Koeper received $48,936 in industry payments from 2016 to 2025
CMS Open Payments shows 458 general payments to Dr. Koeper from 42 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 40% of the total. Keryx Biopharmaceuticals, Inc. paid the most, $33,422.
General payments to Dr. Koeper by program year, 2016 to 2025
General payments to Dr. Koeper by kind, 2016 to 2025
$48.9Kin total
- Consulting fees$19,63040%
- Speaker and faculty fees$15,55032%
- Food and beverage$8,10917%
- Travel and lodging$5,55311%
- Education$940%
Companies that paid Dr. Koeper 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. David W. Koeper has 1 award and honors on record
Dmand AI lists 1 award for Dr. Koeper, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Koeper
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. David W. Koeper graduated from Loyola University Chicago Stritch School of Medicine
Dr. Koeper graduated from Loyola University Chicago Stritch School of Medicine in 1997.
- Medical school
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. David W. Koeper accepts plans from 21 insurance carriers
Dr. Koeper is in network with 21 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- HCSC
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Humana
- +13 more carriersWith a free account
Plan types Dr. Koeper accepts, by number of carriers
- Medicare11
- PPO11
- HMO10
- POS6
- EPO4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. David W. Koeper'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 DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 W. Koeper
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 W. Koeper's NPI number?
Dr. David W. Koeper's NPI number is 1487698387. It was assigned on June 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David W. Koeper?
Dr. David W. Koeper is a nephrologist in Oshkosh, Wisconsin. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. David W. Koeper practice?
Dr. Koeper practices at 414 Doctors Ct, Oshkosh, WI 54901. Dr. Koeper's primary practice is Fresenius Medical Care Appleton in Oshkosh, Wisconsin. Dmand AI also links Dr. Koeper to 4 hospitals, 4 dialysis centers, 2 group practices and clinics and 2 medical groups.
What is Dr. David W. Koeper's office phone number?
The practice phone on file for Dr. Koeper is (920) 997-8600.
What is Dr. David W. Koeper's medical license number?
Dr. Koeper's Wisconsin license number on file is 42143, one of the licenses on file in 3 states.
Which states has Dr. David W. Koeper been licensed in?
Dmand AI has state licenses on file for Dr. Koeper in Wisconsin (2000 to 2025), Michigan (2019 to 2026) and Illinois (1997 to 2002).
Which hospitals is Dr. David W. Koeper affiliated with?
Dr. Koeper is affiliated with ThedaCare Regional Medical Center-Neenah. Dmand AI links Dr. Koeper to 4 more hospitals.
What medical group is Dr. David W. Koeper part of?
Dr. Koeper is linked to Prevea Health. Dmand AI links Dr. Koeper to 2 more medical groups.
Does Dr. David W. Koeper accept Medicare?
Yes. CMS data shows Dr. Koeper billed Medicare for 1,128 services in 2024, and Dr. Koeper accepts Medicare assignment.
How many Medicare patients does Dr. David W. Koeper see?
CMS counts 277 Medicare patients who saw Dr. Koeper in 2024, with an average age of 70.
Show 9 more questionsShow fewer questions
Is Dr. David W. Koeper board certified?
Yes. Dr. Koeper is board certified in nephrology by the American Board of Internal Medicine.
What services does Dr. David W. Koeper bill to Medicare?
In 2024, Dr. Koeper's most billed Medicare services were dialysis (90960), hospital inpatient care (99232) and dialysis (90970).
Where did Dr. David W. Koeper go to medical school?
Dr. Koeper graduated from Loyola University Chicago Stritch School of Medicine in 1997.
What drugs does Dr. David W. Koeper prescribe most?
In 2024 Medicare Part D data, Dr. Koeper's most prescribed drugs by claims were Sevelamer Carbonate, Xphozah and Magnesium Sulfate.
Has Dr. David W. Koeper received payments from drug or device companies?
CMS Open Payments shows $48,936 in general payments to Dr. Koeper from 42 companies from 2016 to 2025. The largest total came from Keryx Biopharmaceuticals, Inc.
How long has Dr. David W. Koeper been practicing?
Dr. Koeper graduated from medical school in 1997, 29 years ago.
Does Dr. David W. Koeper do research?
Dmand AI links 1 publication to Dr. Koeper. Dr. Koeper has worked on 1 clinical trial.
Who does Dr. David W. Koeper publish with?
Dr. Koeper's most frequent co-authors are Pablo Ezequiel Pergola, MD (1 shared paper).
What insurance does Dr. David W. Koeper accept?
Dr. Koeper is in network with 21 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 11. Check the plan with the practice before a visit.
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