TIFFANY YIN WONG CHANG (M.D.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1396915021
Anatomic Pathology & Clinical Pathology Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
766 PATHOLOGY in IL
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Provider Addresses for TIFFANY YIN WONG CHANG (M.D.)
Fire Department, East Saint Charles Road, Gretna, Carol Stream, DuPage County, Illinois, 60188, United States
CAROL STREAM, IL 601220001
Phone:
Type: Mailing
Northwestern Medicine Central DuPage Hospital, 25, North Winfield Road, Geneva Road, Winfield, DuPage County, Illinois, 60190, United States
WINFIELD, IL 601901222
Phone: (630) 933-2048
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
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Open Payments (CMS)
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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: 2008-06-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20080627000225 | I | Pathology | IL | 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 |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 1,144 | 659 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 475 | 110 | $0 |
| 84165 | Protein measurement, serum | 398 | 349 | $0 |
| 88112 | Cell examination of specimen, selective cellular enhancement technique | 311 | 266 | $0 |
| 86334 | Immunologic analysis technique on serum (immunofixation) | 281 | 236 | $0 |
Insurance plans in this area (ZIP 60122)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PATHOLOGY | IL | 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 112 | 101 |
| PATHOLOGY | IL | 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 174 | 84 |
| PATHOLOGY | IL | 88342 | Tissue or cell analysis by immunologic technique | 71 | 62 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | IL | |
| P A T H O L O G Y | IL | |
| P A T H O L O G Y | IL | |
| P A T H O L O G Y | IL | |
| P A T H O L O G Y | IA | |
| P A T H O L O G Y | IA | |
| P A T H O L O G Y | IL | |
| P A T H O L O G Y | UT | |
| - | IL | |
| P A T H O L O G Y | IL |
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