DR. PIETER WIERSEMA (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1083890651
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
311 PATHOLOGY in IN
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Provider Addresses for DR. PIETER WIERSEMA (MD)
South Emerson Avenue, Bosart-Brown, Near Eastside, Indianapolis, Marion, Indiana, 46203, United States
SUITE 200
INDIANAPOLIS, IN 462378632
Phone: (317) 865-2955
Fax: (317) 865-8653
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $39.
Total Amount is formed as General ($39) + Research ($0) + Ownership ($0) = $39.
Last reported payment date: 2024-10-16 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($21).
Total Amount
$39
General + Research + Ownership
Payments
2
Total payment records
General Amount
$39
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $21 |
| Daiichi Sankyo Inc. | $18 |
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: 2017-01-30
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 |
|---|---|---|---|---|
| I20170130000194 | 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 | 215 | 199 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 35 | 22 | $0 |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | 32 | 27 | $0 |
| 88312 | Special stained specimen slides to identify organisms including interpretation and report | 30 | 29 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 23 | 23 | $0 |
Insurance plans in this area (ZIP 46237)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IN | |
| Certified Registered Nurse Anesthetist (Crna) | IN | |
| Pain Management, Anesthesiology | ME | |
| Internal Medicine | IN | |
| Cardiovascular Disease (Cardiology), Cardiac Surgery | IN | |
| P O D I A T R Y | IN | |
| - | IN | |
| A N E S T H E S I O L O G Y | IN | |
| Anesthesiology, Pain Management | IN | |
| - | IN |
Reviews
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