Doctor profile · Federal record
Dr. Chang Yang, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Internal Medicine Physician · Internal Medicine Physician · Internal Medicine Physician · Hospitalist Physician · Internal Medicine Physician · Elmhurst, IL
- NPI 1902219611
- Accepts Medicare
- 21 yrs in practice
- Licensed in 5 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 6 locations .
- Primary practice
-
155 E Brush Hill RD
Elmhurst, IL 601265658
(331) 221-8952 - Additional location
-
1 Ingalls Dr
Harvey, IL 604263558
(888) 824-0200 - Additional location
-
1555 Barrington RD
Hoffman Estates, IL 601691019
(224) 273-3152 - Additional location
-
5841 S Maryland Ave
Chicago, IL 606371443
(888) 824-0200 - Additional location
-
333 E 2Nd St
Richland Center, WI 535811914
(608) 647-6321 - Additional location
-
615 Fulton St
Port Clinton, OH 434522001
(419) 734-3131 - Mailing address
-
150 Harvester Dr Ste 300
Burr Ridge, IL 605275965
Show 3 more locations
Credentials & registration
- NPI registered
- June 2014 — 12 yrs on file
- Profile last updated
- June 2, 2025
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (5)
- Wisconsin #2489-320 · Indiana #01086875A · Missouri #2017021754 · Illinois #036.143268 · Ohio #35.152109
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902219611. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,236
Distinct HCPCS
5
Medicare allowed
$161,670
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 701 | 285 | $124 | |
99239 |
Hospital discharge day management, more than 30 minutes | 233 | 232 | $119 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 223 | 217 | $177 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 61 | 42 | $83 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 18 | 18 | $134 |
In context: peer comparison
Among 19 peers in Elmhurst Internal Medicine Physician, average services per provider: 100. This provider delivers 12× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
40
Patients
28
Total drug cost
$339
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 17 | 17 | $88 |
| Potassium Chloride | Generic | 12 | 0 | $170 |
| Furosemide | Generic | 11 | 11 | $81 |
Frequently asked questions
What is Dr. Chang Yang's medical specialty?
Dr. Chang Yang practices Internal Medicine Physician in Elmhurst, IL.
Where does Dr. Chang Yang practice?
Dr. Chang Yang practices at 155 E Brush Hill RD, Elmhurst, IL 601265658. Office phone: 3312218952.
What is Dr. Chang Yang's NPI?
Dr. Chang Yang's National Provider Identifier (NPI) is 1902219611, issued by NPPES.
Does Dr. Chang Yang accept Medicare assignment?
Yes. Dr. Chang Yang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chang Yang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.