DR. NATHAN ALAN AARDSMA (D.O.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1649579939
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 DR. NATHAN ALAN AARDSMA (D.O.)
840 S. WOOD ST., RM. 130 CSN
CHICAGO, IL 60612
Phone: (312) 413-1790
Type: Mailing
1740 W TAYLOR ST
CHICAGO, IL 606127232
Phone: (866) 600-2273
Type: Location
24 JOLIET ST
DYER, IN 463111705
Phone: (219) 865-2141
Fax: (219) 864-2136
Type: Location
5700 SOUTHWYCK BLVD
TOLEDO, OH 436141509
Phone: (800) 288-8325
Fax: (419) 866-5453
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2018-07-25
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 |
|---|---|---|---|---|
| I20160718000927 | I | Pathology | IL | TBD |
| I20180725000996 | I | Pathology | IN | 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 | 1,062 | 625 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 585 | 134 | $0 |
| 88377 | Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure | 235 | 55 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 204 | 162 | $0 |
| 85060 | Blood smear interpretation by physician with written report | 160 | 127 | $0 |
Insurance plans in this area (ZIP 60612)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PATHOLOGY | IL | 88342 | Tissue or cell analysis by immunologic technique | 17 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | IN | |
| P A T H O L O G Y | IN | |
| P A T H O L O G Y | MD | |
| - | IN | |
| P A T H O L O G Y | OH | |
| - | IN | |
| P A T H O L O G Y | IN | |
| P A T H O L O G Y | IA | |
| P A T H O L O G Y | IN | |
| - | IN |
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