Doctor profile · Federal record

Dr. Leonard Piazza, M.D.

Otolaryngology Physician · Naperville, IL

  • NPI 1083633663
  • MIPS 91.4 / 100 · 2023
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
10 W Martin Ave Ste 260
Naperville, IL 605406547
(630) 355-5668
fax (630) 355-2071

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 21, 2022
Specialty taxonomy
207Y00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083633663. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,134
Distinct HCPCS
9
Medicare allowed
$137,344
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 520 380 $132
92504 Exam of ear using a microscope 228 183 $31
99204 New patient office or other outpatient visit, 45-59 minutes 161 161 $172
31575 Diagnostic exam of voice box using a flexible endoscope 71 63 $137
77011 Ct guidance for needle or tube localization 54 48 $233
92557 Comprehensive hearing and speech recognition test 31 31 $38
92567 Test to assess middle ear function 31 31 $17
31237 Biopsy or removal of nasal polyp or tissue using an endoscope 22 13 $384
99213 Established patient office or other outpatient visit, 20-29 minutes 16 16 $94

In context: peer comparison

Among 5 peers in Naperville Otolaryngology Physician, average services per provider: 87. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$158
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Inspire Medical Systems, INC. 1 $126.37
Neurent Medical Limited 1 $31.93

By nature of payment

Food and Beverage
$158

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
764
Patients
387
Total drug cost
$18,847
Drug Type Claims Patients Total cost
Fluticasone Propionate Generic 223 104 $3,788
Ipratropium Bromide Generic 143 47 $4,895
Methylprednisolone Generic 62 52 $647
Omeprazole Generic 62 22 $1,055
Azelastine Hcl Generic 61 34 $3,152
Cefuroxime (Cefuroxime Axetil) Brand 49 38 $962
Triamterene-Hydrochlorothiazid (Triamterene/Hydrochlorothiazid) Brand 29 13 $370
Azithromycin Generic 28 26 $185
Diazepam Generic 26 11 $121
Clotrimazole Generic 17 0 $431

Frequently asked questions

Auto-generated from federal data
What is Dr. Leonard Piazza's medical specialty?
Dr. Leonard Piazza practices Otolaryngology Physician in Naperville, IL.
Where does Dr. Leonard Piazza practice?
Dr. Leonard Piazza practices at 10 W Martin Ave Ste 260, Naperville, IL 605406547. Office phone: 6303555668.
What is Dr. Leonard Piazza's NPI?
Dr. Leonard Piazza's National Provider Identifier (NPI) is 1083633663, issued by NPPES.
What procedures does Dr. Leonard Piazza commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Exam of ear using a microscope (HCPCS 92504); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.