Doctor profile · Federal record

Dr. William Espar, M.D.

Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Internal Medicine Physician · Interventional Cardiology Physician · Diagnostic Ultrasound Physician · Michigan City, IN

  • NPI 1952396855
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3500 Franciscan Way Ste 400
Michigan City, IN 463600033
(219) 878-8200
fax (219) 877-8331
Mailing address
Po Box 781076
Detroit, MI 482781076

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
June 20, 2024
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207RC0000X — NUCC code
State license (1)
Indiana #01041339A
Medicaid (2)
IN #200066840A · IN #200066840

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1952396855. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,591
Distinct HCPCS
10
Medicare allowed
$168,562
HCPCS Description Services Patients Avg allowed
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 1,031 668 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 491 449 $85
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 406 394 $13
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 303 296 $65
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 182 105 $75
99214 Established patient office or other outpatient visit, 30-39 minutes 163 150 $120
93016 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 141 141 $20
93018 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 141 141 $13
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect 128 128 $72
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 78 52 $114

In context: peer comparison

Among 3 peers in this city , average services per provider: 116. This provider delivers 31× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,565
Transactions
100
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Medtronic, Inc. 20 $3,078.49
Novartis Pharmaceuticals Corporation 32 $357.97
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) 15 $200.69
Actelion Pharmaceuticals US, Inc. 3 $116.57
ABIOMED 3 $99.42
PFIZER INC. 4 $86.87
Abbott Laboratories 3 $84.50
Janssen Pharmaceuticals, Inc 3 $76.81
Amgen Inc. 4 $71.46
Merck Sharp & Dohme LLC 3 $69.52
Boehringer Ingelheim Pharmaceuticals, Inc. 3 $59.20
HEARTFLOW, INC. 2 $46.33
CVRx, Inc. 2 $40.69
Philips North America LLC 1 $31.11
E.R. Squibb & Sons, L.L.C. 2 $30.80

By nature of payment

Travel and Lodging
$2,031
Food and Beverage
$1,960
Consulting Fee
$485
Education
$89

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,497
Patients
1,129
Total drug cost
$535,862
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 441 137 $5,550
Metoprolol Succinate Generic 350 126 $6,290
Furosemide Generic 282 97 $1,803
Amlodipine Besylate Generic 271 91 $2,371
Metoprolol Tartrate Generic 255 81 $1,631
Eliquis (Apixaban) Brand 236 62 $283,911
Lisinopril Generic 224 60 $1,347
Isosorbide Mononitrate Er (Isosorbide Mononitrate) Brand 220 69 $4,336
Carvedilol Generic 201 62 $2,061
Xarelto (Rivaroxaban) Brand 193 46 $209,732

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Espar's medical specialty?
Dr. William Espar practices Cardiovascular Disease Physician in Michigan City, IN.
Where does Dr. William Espar practice?
Dr. William Espar practices at 3500 Franciscan Way Ste 400, Michigan City, IN 463600033. Office phone: 2198788200.
What is Dr. William Espar's NPI?
Dr. William Espar's National Provider Identifier (NPI) is 1952396855, issued by NPPES.
Does Dr. William Espar accept Medicare assignment?
Yes. Dr. William Espar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Espar commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Established patient office or other outpatient visit (HCPCS 99213); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000). Source: CMS Medicare Physician & Other Practitioners file.