Dr. Eugene H. Chang, MD
ENT (Otolaryngology) (Otolaryngology Physician)
1501 N Campbell Ave
Tucson, AZ 85724
Who else practices at this address →
Pima County includes primary care (34% of residents) and dental (4% of residents) and mental health (14% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Warren Alpert Medical School of Brown University (2004)
- Years since graduation
- 22
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 131
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2004Medical school: Warren Alpert Medical School of Brown University
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Otolaryngology Physician primary
AZ license 49660
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
Medical groups
- Banner-University Medical Group (1,072 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 131
- Services billed
- 479
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Diagnostic exam of nasal passages using an endoscope | 150 | 104 |
| Established patient office or other outpatient visit, 20-29 minutes | 117 | 69 |
| Biopsy or removal of nasal polyp or tissue using an endoscope | 66 | 35 |
| New patient office or other outpatient visit, 45-59 minutes | 54 | 54 |
| Established patient office or other outpatient visit, 30-39 minutes | 27 | 23 |
| Computer-assisted procedure outside membrane covering brain | 16 | 16 |
| Exam of nose and sinus with removal of nasal sinus using an endoscope | 16 | 16 |
| Exploration of nasal sinus using an endoscope | 14 | 14 |
| Removal of nasal sinus tissue using an endoscope | 12 | 12 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Ipratropium Bromide Other prescribers in Tucson, AZ | 141 |
| Azelastine Hcl Other prescribers in Tucson, AZ | 88 |
| Methylprednisolone Other prescribers in Tucson, AZ | 31 |
| Amoxicillin-Clavulanate Potass (amoxicillin/potassium clav) Other prescribers in Tucson, AZ | 20 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 6 companies reported 28 payments worth $36,799 in total to this clinician.
| Genzyme Corporation | $27,641 |
|---|---|
| Regeneron Healthcare Solutions, Inc. | $8,814 |
| Neurent Medical Limited | $152 |
| DePuy Synthes Sales Inc. | $144 |
| Abbott Laboratories | $24.39 |
| GlaxoSmithKline, LLC. | $23.30 |
| Compensation for services other than consulting (speaking, faculty) | $32,596 |
|---|---|
| Travel and Lodging | $2,693 |
| Food and Beverage | $1,511 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Genzyme Corporation Nov 13, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $8,442 |
| Regeneron Healthcare Solutions, Inc. May 9, 2025 | Compensation for services other than consulting (speaking, faculty) | $6,566 |
| Genzyme Corporation Oct 21, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $5,628 |
| Genzyme Corporation Jul 24, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $5,159 |
| Genzyme Corporation Sep 22, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $5,159 |
| Genzyme Corporation Nov 13, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Gilbert, AZ · in-kind | $968 |
| Genzyme Corporation Mar 29, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $938 |
| Regeneron Healthcare Solutions, Inc. Apr 15, 2025 | Compensation for services other than consulting (speaking, faculty) | $704 |
| Genzyme Corporation Jul 24, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Tucson, AZ · in-kind | $646 |
| Regeneron Healthcare Solutions, Inc. Apr 26, 2025 | Travel and Lodging DUPIXENT · IMMUNOLOGY AND INFLAMMATION · travel to DALLAS, TX · in-kind | $387 |
All 13 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Genzyme Corporation Nov 13, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $8,442 |
| Genzyme Corporation Nov 13, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Gilbert, AZ · in-kind | $968 |
| Genzyme Corporation Oct 21, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $5,628 |
| Genzyme Corporation Sep 22, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $5,159 |
| Genzyme Corporation Jul 24, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $5,159 |
| Genzyme Corporation Jul 24, 2025 | Travel and Lodging DUPIXENT · Immunology · travel to Tucson, AZ · in-kind | $646 |
| Regeneron Healthcare Solutions, Inc. May 9, 2025 | Compensation for services other than consulting (speaking, faculty) | $6,566 |
| Regeneron Healthcare Solutions, Inc. Apr 29, 2025 | Travel and Lodging DUPIXENT · IMMUNOLOGY AND INFLAMMATION · travel to DALLAS, TX · in-kind | $161 |
| Regeneron Healthcare Solutions, Inc. Apr 29, 2025 | Travel and Lodging DUPIXENT · IMMUNOLOGY AND INFLAMMATION · travel to DALLAS, TX · in-kind | $151 |
| Regeneron Healthcare Solutions, Inc. Apr 26, 2025 | Travel and Lodging DUPIXENT · IMMUNOLOGY AND INFLAMMATION · travel to DALLAS, TX · in-kind | $387 |
| Regeneron Healthcare Solutions, Inc. Apr 15, 2025 | Compensation for services other than consulting (speaking, faculty) | $704 |
| Genzyme Corporation Mar 29, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · Immunology | $938 |
| Regeneron Healthcare Solutions, Inc. Mar 10, 2025 | Travel and Lodging DUPIXENT · IMMUNOLOGY AND INFLAMMATION · travel to DALLAS, TX · in-kind | $379 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 2 industry-funded studies in 2025, from 2 companies. The companies reported $116,283 in research payments for these studies, mostly to the institutions running them.
- Targeting Molecular Airway Remodeling and Type 2 Immune Signals with Dupilumab to slow the Clinical Progression of CRSwNP
Genzyme Corporation - A randomised, double-blind, parallel group phase iii study to assess t
GlaxoSmithKline, LLC.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.