Doctor profile · Federal record

Dr. John Mastrud, D.D.S.

Dentist · Lemont, IL

  • NPI 1366577652
  • 19 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
15947 W 127Th St, Suite H
Lemont, IL 604397421
(630) 257-2133
fax (630) 257-2146
Mailing address
15947 W. 127Th Street, Suite H
Lemont, IL 60439

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
October 21, 2014
Specialty taxonomy
122300000X — NUCC code
State license (1)
Illinois #019-023242

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366577652. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$130
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Ultradent Products Inc 2 $130.03

By nature of payment

Gift
$125
Food and Beverage
$5

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
40
Patients
28
Total drug cost
$186
Drug Type Claims Patients Total cost
Amoxicillin Generic 40 28 $186

Frequently asked questions

Auto-generated from federal data
What is Dr. John Mastrud's medical specialty?
Dr. John Mastrud practices Dentist in Lemont, IL.
Where does Dr. John Mastrud practice?
Dr. John Mastrud practices at 15947 W 127Th St, Lemont, IL 604397421. Office phone: 6302572133.
What is Dr. John Mastrud's NPI?
Dr. John Mastrud's National Provider Identifier (NPI) is 1366577652, issued by NPPES.