Doctor profile · Federal record

Dr. Zaher Qassem, MD

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Internal Medicine Physician · Critical Care Medicine (Internal Medicine) Physician · Geriatric Medicine (Internal Medicine) Physician · Rockford, IL

  • NPI 1366551996
  • Accepts Medicare
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2350 N Rockton Ave
Rockford, IL 611033600
(815) 971-2015
fax (815) 971-9581

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
August 31, 2020
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
Illinois #036125221
Medicaid (3)
IL #036125221 · AL #051523281 · WI #1366551996

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366551996. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,575
Distinct HCPCS
10
Medicare allowed
$145,066
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 269 123 $209
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 214 107 $79
99214 Established patient office or other outpatient visit, 30-39 minutes 157 131 $96
94010 Test to measure expiratory airflow and volume 138 133 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 113 106 $64
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 76 71 $128
94060 Test to measure expiratory airflow and volume changes before and after medication administration 63 62 $10
94729 Test to examine how well the lungs exchange gases 60 60 $9
99214 Established patient office or other outpatient visit, 30-39 minutes 52 43 $122
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 52 37 $118

In context: peer comparison

Among 7 peers in Rockford Pulmonary Disease Physician, average services per provider: 62. This provider delivers 25× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,143
Transactions
32
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 11 $2,332.31
Bayer Healthcare Pharmaceuticals INC. 2 $209.58
Boehringer Ingelheim Pharmaceuticals, INC. 5 $186.36
Genzyme Corporation 2 $138.39
AstraZeneca Pharmaceuticals Lp 6 $99.40
Regeneron Healthcare Solutions, INC. 2 $93.77
GlaxoSmithKline, LLC. 2 $34.69
Amgen INC. 1 $26.52
Mylan Specialty L.P. 1 $22.19

By nature of payment

Travel and Lodging
$2,315
Food and Beverage
$548
Consulting Fee
$200
Education
$80

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,562
Patients
956
Total drug cost
$1,454,325
Drug Type Claims Patients Total cost
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 858 171 $651,124
Montelukast Sodium Generic 487 129 $6,438
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 325 105 $10,391
Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) Brand 298 66 $172,448
Symbicort (Budesonide/Formoterol Fumarate) Brand 260 71 $136,230
Incruse Ellipta (Umeclidinium Bromide) Brand 247 48 $112,734
Breo Ellipta (Fluticasone/Vilanterol) Brand 234 54 $108,211
Prednisone Generic 209 106 $702
Spiriva Respimat (Tiotropium Bromide) Brand 168 37 $104,435
Fluticasone Propionate Generic 142 50 $1,966

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Zaher Qassem's medical specialty?
Dr. Zaher Qassem practices Pulmonary Disease Physician in Rockford, IL.
Where does Dr. Zaher Qassem practice?
Dr. Zaher Qassem practices at 2350 N Rockton Ave, Rockford, IL 611033600. Office phone: 8159712015.
What is Dr. Zaher Qassem's NPI?
Dr. Zaher Qassem's National Provider Identifier (NPI) is 1366551996, issued by NPPES.
Does Dr. Zaher Qassem accept Medicare assignment?
Yes. Dr. Zaher Qassem accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zaher Qassem commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.