DR. THANH THIEN HA LAN (M.D.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1124310842
Anatomic Pathology & Clinical Pathology Physician
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766 PATHOLOGY in IL
Provider Addresses for DR. THANH THIEN HA LAN (M.D.)
1137 W MONROE ST UNIT 16
CHICAGO, IL 606072566
Phone: (312) 970-1483
Type: Mailing
1249 N BOSWORTH AVE
APT. 3N
CHICAGO, IL 606428023
Phone: (312) 970-1483
Type: Location
2225 ENTERPRISE DR STE 2511
WESTCHESTER, IL 601545805
Phone: (708) 486-0076
Type: Mailing
960 OLD GREEN BAY RD APT 3N
WINNETKA, IL 600931710
Phone: (224) 247-8870
Type: Location
966 12th St SE Ste 130
Salem, OR 973022860
Phone: (503) 837-6395
Fax: (541) 210-8913
Type: Location
2225 Enterprise Dr Ste 2511
Westchester, IL 601545805
Phone: (708) 486-0076
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: 2024-12-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20150731015547 | I | Pathology | IL | TBD |
| I20241217002173 | I | Pathology | OR | 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 | 1,098 | 497 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 136 | 36 | $0 |
| 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 114 | 71 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 73 | 60 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 51 | 50 | $0 |
Insurance plans in this area (ZIP 60607)
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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 | 116 | 103 |
| PATHOLOGY | IL | 88307 | Pathology examination of tissue using a microscope, moderately high complexity | 62 | 51 |
| PATHOLOGY | IL | 88312 | Special stained specimen slides to identify organisms including interpretation and report | 77 | 28 |
| PATHOLOGY | IL | 88342 | Tissue or cell analysis by immunologic technique | 231 | 211 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| U R O L O G Y | IL | |
| Nurse Practitioner | IL | |
| - | IL | |
| - | IL | |
| U R O L O G Y | IL | |
| Physician Assistant | IL | |
| U R O L O G Y | IL | |
| Physician Assistant | IL | |
| Physician Assistant | IL | |
| - | IL |
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