Doctor profile · Federal record

Dr. David Koeper, MD

Nephrology Physician (CMS: General Practice) · Neenah, WI

  • NPI 1487698387
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 N Commercial St, Suite 200
Neenah, WI 549562619
(920) 886-0818
fax (920) 883-0773

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
February 10, 2012
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Wisconsin #42143
Medicaid (2)
WI #21280500 · WI #34168200

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1487698387. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
922
Distinct HCPCS
10
Medicare allowed
$178,804
HCPCS Description Services Patients Avg allowed
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 314 50 $332
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 212 85 $74
99214 Established patient office or other outpatient visit, 30-39 minutes 110 72 $121
90966 Home dialysis services per month (20 years or older) 88 13 $276
90935 Hemodialysis procedure with physician evaluation 54 38 $67
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 51 46 $122
99213 Established patient office or other outpatient visit, 20-29 minutes 34 32 $85
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 18 12 $112
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 17 16 $163
36589 Removal of tunneled central venous tube 12 12 $153

In context: peer comparison

Among 3 peers in Neenah Nephrology Physician, average services per provider: 89. This provider delivers 10× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$796
Transactions
40
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Amgen INC. 12 $256.01
Mallinckrodt Hospital Products INC. 4 $84.26
GlaxoSmithKline, LLC. 4 $65.49
Otsuka America Pharmaceutical, INC. 3 $61.38
Ardelyx, INC. 3 $58.59
Ultragenyx Pharmaceutical INC. 2 $42.29
Novartis Pharmaceuticals Corporation 2 $37.48
Calliditas Therapeutics US INC. 2 $36.31
AstraZeneca Pharmaceuticals Lp 2 $31.06
Lexicon Pharmaceuticals, INC. 1 $26.57
Lilly USA, LLC 1 $25.08
Travere Therapeutics, INC. 1 $22.13
Boehringer Ingelheim Pharmaceuticals, INC. 1 $19.14
Alnylam Pharmaceuticals INC. 1 $16.06
Fresenius USA Marketing, INC. 1 $14.36

By nature of payment

Food and Beverage
$796

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
544
Patients
80
Total drug cost
$147,258
Drug Type Claims Patients Total cost
Sevelamer Carbonate Generic 87 25 $20,388
Magnesium Sulfate Generic 52 0 $4,981
Furosemide Generic 45 16 $574
Lanthanum Carbonate Generic 40 0 $28,240
Losartan Potassium Generic 39 12 $478
Amlodipine Besylate Generic 37 13 $370
Calcitriol Generic 37 14 $1,032
Lisinopril Generic 35 0 $123
Auryxia (Ferric Citrate) Brand 34 0 $69,406
Allopurinol Generic 26 0 $258

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. David Koeper's medical specialty?
Dr. David Koeper practices Nephrology Physician in Neenah, WI.
Where does Dr. David Koeper practice?
Dr. David Koeper practices at 300 N Commercial St, Neenah, WI 549562619. Office phone: 9208860818.
What is Dr. David Koeper's NPI?
Dr. David Koeper's National Provider Identifier (NPI) is 1487698387, issued by NPPES.
Does Dr. David Koeper accept Medicare assignment?
Yes. Dr. David Koeper accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Koeper commonly perform?
Top Medicare-reported procedures in 2023: Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.