Doctor profile · Federal record
Dr. Jonathan Chang, M.D.
Ophthalmology Physician (CMS: Ophthalmology) · Ophthalmology Physician · Ophthalmology Physician · Middleton, WI
- NPI 1346403961
- Accepts Medicare
- 18 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2349 Deming Way
Middleton, WI 535625530
(608) 824-3937
fax (608) 833-3326 - Mailing address
-
7974 Uw Health CT
Middleton, WI 535625531
Credentials & registration
- NPI registered
- July 2008 — 18 yrs on file
- Profile last updated
- February 1, 2021
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State licenses (3)
- Wisconsin #66356 · New York #275254 · Florida #ME112267
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346403961. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,484
Distinct HCPCS
10
Medicare allowed
$585,383
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92134 |
Imaging of retina | 1,232 | 490 | $29 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 803 | 426 | $70 | |
67028 |
Injection of drug into eye | 666 | 158 | $104 | |
J0178 |
Injection, aflibercept, 1 mg | 428 | 42 | $871 | |
92201 |
Extended exam of the back part of the eye with retinal drawing | 111 | 110 | $22 | |
J9035 |
Injection, bevacizumab, 10 mg | 96 | 30 | $70 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 73 | 70 | $98 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 30 | 30 | $143 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 19 | 19 | $97 | |
67041 |
Removal of membrane of retina | 13 | 13 | $1,063 |
In context: peer comparison
Among 2 peers in Middleton Ophthalmology Physician, average services per provider: 229. This provider delivers 15× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
170
Patients
62
Total drug cost
$6,371
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisolone Acetate | Generic | 66 | 39 | $2,519 |
| Latanoprost | Generic | 25 | 0 | $655 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 17 | 12 | $361 |
| Brimonidine Tartrate | Generic | 14 | 0 | $156 |
| Difluprednate | Generic | 13 | 0 | $2,051 |
| Dorzolamide Hcl | Generic | 12 | 0 | $219 |
| Ketorolac Tromethamine | Generic | 12 | 0 | $302 |
| Polymyxin B Sul-Trimethoprim (Polymyxin B Sulf/Trimethoprim) | Brand | 11 | 11 | $108 |
Frequently asked questions
What is Dr. Jonathan Chang's medical specialty?
Dr. Jonathan Chang practices Ophthalmology Physician in Middleton, WI.
Where does Dr. Jonathan Chang practice?
Dr. Jonathan Chang practices at 2349 Deming Way, Middleton, WI 535625530. Office phone: 6088243937.
What is Dr. Jonathan Chang's NPI?
Dr. Jonathan Chang's National Provider Identifier (NPI) is 1346403961, issued by NPPES.
Does Dr. Jonathan Chang accept Medicare assignment?
Yes. Dr. Jonathan Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Chang commonly perform?
Top Medicare-reported procedures in 2023: Imaging of retina (HCPCS 92134); Established patient office or other outpatient visit (HCPCS 99213); Injection of drug into eye (HCPCS 67028). Source: CMS Medicare Physician & Other Practitioners file.