LEI YAN (M.D., PH.D) – Anatomic Pathology & Clinical Pathology Physician, NPI 1487068078
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
766 PATHOLOGY in IL
Provider Addresses for LEI YAN (M.D., PH.D)
1653 W CONGRESS PKWY
JELKE BUILDING, DEPARTMENT OF PATHOLOGY
CHICAGO, IL 606123833
Phone: (504) 617-2165
Type: Location
7645 GLADSTONE DR
#202
NAPERVILLE, IL 605651120
Phone: (504) 617-2165
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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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: 2020-04-15
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 |
|---|---|---|---|---|
| I20200415002564 | 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 | 513 | 300 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 258 | 61 | $0 |
| 88173 | Evaluation of fine needle aspirate with interpretation and report | 231 | 129 | $0 |
| 88112 | Cell examination of specimen, selective cellular enhancement technique | 194 | 166 | $0 |
| 88172 | Evaluation of fine needle aspirate | 92 | 38 | $0 |
Insurance plans in this area (ZIP 60612)
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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 | OH | |
| P A T H O L O G Y | NJ | |
| P A T H O L O G Y | NY | |
| P A T H O L O G Y | OH | |
| 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 | FL | |
| P A T H O L O G Y | OH | |
| P A T H O L O G Y | OH |
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