Doctor profile · Federal record

Dr. Nicholas Mazur, D.O.

Emergency Medicine Physician · Student in an Organized Health Care Education/Training Program · Hammond, IN

  • NPI 1134419765
  • 15 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5454 Hohman Ave
Hammond, IN 463201931
(219) 933-2077
Mailing address
3531 Redwing CT
Naperville, IL 605648304

Credentials & registration

NPPES · NUCC
NPI registered
April 2011 — 15 yrs on file
Profile last updated
June 25, 2015
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Indiana #02004584A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134419765. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
622
Distinct HCPCS
3
Medicare allowed
$104,120
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 378 365 $184
99284 Emergency department visit with moderate level of medical decision making 200 199 $125
99291 Critical care, first 30-74 minutes 44 43 $221

In context: peer comparison

Among 3 peers in Hammond Emergency Medicine Physician, average services per provider: 168. This provider delivers 3.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$24
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 1 $23.50

By nature of payment

Food and Beverage
$24

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
152
Patients
150
Total drug cost
$1,154
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 34 33 $228
Prednisone Generic 26 26 $49
Cephalexin Generic 24 24 $274
Acetaminophen-Codeine (Acetaminophen With Codeine) Brand 19 19 $66
Ondansetron Odt (Ondansetron) Brand 19 19 $175
Doxycycline Hyclate Generic 18 17 $239
Prochlorperazine Maleate Generic 12 12 $123

Frequently asked questions

Auto-generated from federal data
What is Dr. Nicholas Mazur's medical specialty?
Dr. Nicholas Mazur practices Emergency Medicine Physician in Hammond, IN.
Where does Dr. Nicholas Mazur practice?
Dr. Nicholas Mazur practices at 5454 Hohman Ave, Hammond, IN 463201931. Office phone: 2199332077.
What is Dr. Nicholas Mazur's NPI?
Dr. Nicholas Mazur's National Provider Identifier (NPI) is 1134419765, issued by NPPES.
What procedures does Dr. Nicholas Mazur commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.