William Chopp, MD
NPI 1619024585 · Anatomic Pathology & Clinical Pathology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Chopp, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Grand Rapids, MI (NPI 1619024585).
Provider details
- NPI number
- 1619024585
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
987 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 | 505 | $34 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 109 | $64 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 105 | $25 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 98 | $25 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 64 | $76 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 56 | $32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29 across 1 record (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
- 2007-01-04
- Last updated
- 2014-05-05
Frequently asked questions
- What is William Chopp's NPI number?
- William Chopp's National Provider Identifier (NPI) is 1619024585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chopp's specialty?
- William Chopp is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is William Chopp located?
- William Chopp's practice location on file with NPPES is 35 Michigan St Ne # Mc056, Grand Rapids, MI 49503-2514.
- What is William Chopp's phone number?
- The practice phone number listed in the NPPES registry for William Chopp is (616) 267-2660.
- Does William Chopp accept Medicare?
- William Chopp is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Chopp's NPI active?
- Yes — William Chopp's NPI (1619024585) is active in the NPPES registry as of the last update on 2014-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.