Pieter Wiersema, MD
NPI 1083890651 · Anatomic Pathology & Clinical Pathology Physician · Indianapolis, IN
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Pieter Wiersema, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Indianapolis, IN (NPI 1083890651).
Provider details
- NPI number
- 1083890651
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 01030601A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
545 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 251 | $34 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 84 | $26 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 46 | $31 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 29 | $24 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 28 | $11 |
| Pathology Examination of Tissue Using a Microscope, Limited Examination88300 | 27 | $4 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-01-14
- Last updated
- 2020-03-09
- Certified
- 2020-03-09
Frequently asked questions
- What is Pieter Wiersema's NPI number?
- Pieter Wiersema's National Provider Identifier (NPI) is 1083890651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Pieter Wiersema's specialty?
- Pieter Wiersema is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Pieter Wiersema located?
- Pieter Wiersema's practice location on file with NPPES is 8051 S Emerson Ave, Indianapolis, IN 46237-8632.
- What is Pieter Wiersema's phone number?
- The practice phone number listed in the NPPES registry for Pieter Wiersema is (317) 865-2955.
- Does Pieter Wiersema accept Medicare?
- Pieter Wiersema is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Pieter Wiersema's NPI active?
- Yes — Pieter Wiersema's NPI (1083890651) is active in the NPPES registry as of the last update on 2020-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.