DR. CHANG YANG (M.D.) – Internal Medicine Physician, NPI 1902219611
Internal Medicine Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
8,824 INTERNAL MEDICINE in IL
Provider Addresses for DR. CHANG YANG (M.D.)
150 HARVESTER DR STE 300
BURR RIDGE, IL 605275965
Phone:
Type: Mailing
155 E BRUSH HILL RD
ELMHURST, IL 601265658
Phone: (331) 221-8952
Type: Location
5841 S MARYLAND AVE
CHICAGO, IL 606371447
Phone: (773) 702-5173
Type: Location
1555 Barrington Rd
Hoffman Estates, IL 601691019
Phone: (224) 273-3152
Type: Location
1 Ingalls Dr
Harvey, IL 604263558
Phone: (888) 824-0200
Type: Location
5841 S Maryland Ave
Chicago, IL 606371443
Phone: (888) 824-0200
Type: Location
333 E 2nd St
Richland Center, WI 535811914
Phone: (608) 647-6321
Type: Location
615 Fulton St
Port Clinton, OH 434522001
Phone: (419) 734-3131
Type: Location
PO BOX 781076
DETROIT, MI 482781076
Phone: (317) 528-4800
Type: Mailing
5454 HOHMAN AVE
HAMMOND, IN 463201931
Phone: (219) 932-2300
Fax: (219) 933-2288
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $10,000.
Total Amount is formed as General ($10,000) + Research ($0) + Ownership ($0) = $10,000.
Last reported payment date: 2023-07-15 • Largest payer in this snapshot: Astellas Pharma US Inc ($10,000).
Total Amount
$10,000
General + Research + Ownership
Payments
1
Total payment records
General Amount
$10,000
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-07-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Astellas Pharma US Inc | $10,000 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2024-11-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 4 Medicare enrollment records; no due dates published yet.
Enrollment records
4
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20170808001473 | I | Hospitalist | IL | TBD |
| I20180622002498 | I | Internal Medicine | MO | TBD |
| I20221213001329 | I | Internal Medicine | WI | TBD |
| I20241121002004 | I | Internal Medicine | OH | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 701 | 285 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 233 | 232 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 223 | 217 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 61 | 42 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 18 | 18 | $0 |
Insurance plans in this area (ZIP 60527)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CO | |
| Pulmonary Disease, Critical Care (Intensivists), Critical Care (Intensivists), Pulmonary Disease, Internal Medicine | WA | |
| Internal Medicine | AZ | |
| Hospitalist, Internal Medicine, Osteopathic Manipulative Medicine | CO | |
| - | CO | |
| Internal Medicine, Critical Care (Intensivists), Pulmonary Disease, Critical Care (Intensivists) | WA | |
| Family Practice | CO | |
| Hospitalist, Internal Medicine, Internal Medicine | ND | |
| Pulmonary Disease, Pulmonary Disease, Internal Medicine | WA | |
| Nurse Practitioner | MI |
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