Doctor profile · Federal record

Dr. David Ringold, M.D.

Nephrology Physician (CMS: Nephrology) · Nephrology Physician · Dubuque, IA

  • NPI 1912967118
  • Accepts Medicare
  • 27 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 Delhi St Ste 2100
Dubuque, IA 520016319
(563) 557-9111
fax (563) 589-4046
Mailing address
1515 Delhi St, Ste 100
Dubuque, IA 520016320

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
April 6, 2021
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State licenses (2)
Iowa #34708 · Wisconsin #47156 02
Medicaid (2)
IA #435826 · WI #34533600

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912967118. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
29,388
Distinct HCPCS
10
Medicare allowed
$260,491
HCPCS Description Services Patients Avg allowed
J1756 Injection, iron sucrose, 1 mg 13,501 12 $0
J0881 Injection, darbepoetin alfa, 1 microgram (non-esrd use) 11,511 13 $3
90970 Dialysis services, per day, less than full month service (20 years or older) 678 17 $9
99214 Established patient office or other outpatient visit, 30-39 minutes 549 267 $118
J2405 Injection, ondansetron hydrochloride, per 1 mg 326 19 $0
36415 Insertion of needle into vein for collection of blood sample 292 124 $8
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 262 40 $331
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 219 81 $74
85018 Blood count, hemoglobin 203 105 $2
83970 Parathormone (parathyroid hormone) level 157 104 $40

In context: peer comparison

Among 1 peers in Dubuque Nephrology Physician, average services per provider: 979. This provider delivers 30× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$199
Transactions
9
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Boehringer Ingelheim Pharmaceuticals, INC. 4 $78.39
AstraZeneca Pharmaceuticals Lp 4 $67.08
Baxter Healthcare 1 $53.10

By nature of payment

Food and Beverage
$199

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,024
Patients
809
Total drug cost
$374,170
Drug Type Claims Patients Total cost
Furosemide Generic 564 162 $5,127
Amlodipine Besylate Generic 354 106 $2,587
Irbesartan Generic 306 74 $8,713
Jardiance (Empagliflozin) Brand 270 54 $253,616
Potassium Chloride Generic 204 55 $5,993
Losartan Potassium Generic 200 56 $2,833
Labetalol Hcl Generic 179 46 $10,933
Metoprolol Tartrate Generic 159 38 $1,377
Hydrochlorothiazide Generic 152 51 $754
Lisinopril Generic 141 48 $1,448

Frequently asked questions

Auto-generated from federal data
What is Dr. David Ringold's medical specialty?
Dr. David Ringold practices Nephrology Physician in Dubuque, IA.
Where does Dr. David Ringold practice?
Dr. David Ringold practices at 1500 Delhi St Ste 2100, Dubuque, IA 520016319. Office phone: 5635579111.
What is Dr. David Ringold's NPI?
Dr. David Ringold's National Provider Identifier (NPI) is 1912967118, issued by NPPES.
Does Dr. David Ringold accept Medicare assignment?
Yes. Dr. David Ringold accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Ringold commonly perform?
Top Medicare-reported procedures in 2023: Injection, iron sucrose, 1 mg (HCPCS J1756); Injection, darbepoetin alfa, 1 microgram (non-esrd use) (HCPCS J0881); Dialysis services (HCPCS 90970). Source: CMS Medicare Physician & Other Practitioners file.