Doctor profile · Federal record

Dr. Juan Diaz, M.D.

Interventional Cardiology Physician (CMS: Interventional Cardiology) · Fond du LAC, WI

  • NPI 1780793737
  • Accepts Medicare
  • 44 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
420 E Division St
Fond du LAC, WI 549354560
(920) 926-8230

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
December 23, 2020
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
207RI0011X — NUCC code
State license (1)
Wisconsin #41345
Medicaid
WI #32603400

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780793737. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,164
Distinct HCPCS
10
Medicare allowed
$136,041
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 527 380 $8
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 273 238 $14
99214 Established patient office or other outpatient visit, 30-39 minutes 196 181 $122
93294 Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 193 87 $28
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 169 167 $66
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 156 141 $11
93458 Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 80 79 $208
93280 Programming of dual lead pacemaker system 70 52 $36
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect 67 67 $74
92928 Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 66 52 $475

In context: peer comparison

Among 1 peers in this city , average services per provider: 90. This provider delivers 24× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$101
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
ABIOMED 2 $43.78
Medtronic, Inc. 1 $25.04
HEARTFLOW, INC. 1 $16.68
Boston Scientific Corporation 1 $15.94

By nature of payment

Food and Beverage
$101

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,903
Patients
1,012
Total drug cost
$239,702
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 421 141 $8,194
Clopidogrel (Clopidogrel Bisulfate) Brand 385 148 $6,988
Metoprolol Succinate Generic 324 112 $6,751
Losartan Potassium Generic 244 81 $4,203
Rosuvastatin Calcium Generic 237 79 $7,614
Lisinopril Generic 206 70 $1,643
Metoprolol Tartrate Generic 193 63 $1,710
Eliquis (Apixaban) Brand 151 49 $189,057
Carvedilol Generic 134 39 $1,683
Furosemide Generic 128 49 $855

Frequently asked questions

Auto-generated from federal data
What is Dr. Juan Diaz's medical specialty?
Dr. Juan Diaz practices Interventional Cardiology Physician in Fond du LAC, WI.
Where does Dr. Juan Diaz practice?
Dr. Juan Diaz practices at 420 E Division St, Fond du LAC, WI 549354560. Office phone: 9209268230.
What is Dr. Juan Diaz's NPI?
Dr. Juan Diaz's National Provider Identifier (NPI) is 1780793737, issued by NPPES.
Does Dr. Juan Diaz accept Medicare assignment?
Yes. Dr. Juan Diaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Juan Diaz commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.