NPI registry status
Active
2026 NPPES data Pathology Specialist/Technologist NPI 1295178168
Verify on CMS → William Karpus
Pathology Specialist/Technologist in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 303 in Pathology Specialist/Technologist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
William Karpus is a Pathology Specialist/Technologist in Chicago, Illinois, listed in the federal CMS National Provider Identifier registry.
- #448
- Pathology Specialist/Technologist rank among Illinois specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about William Karpus
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1295178168), first enumerated 04/10/2013.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not William Karpus's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1295178168 · Pathology Specialist/Technologist
NPI-10 · ENUM-MID · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1295178168
- ENUM-MID 2013
- TAX-TRACE 303
- RX-NONE No Part D
- BOOK-THIN 5 in Illinois
- PHOTO-ENUM Ma Ivy Clemente · 2013
What does the federal data show about William Karpus?
Quality data not reportedPrimary specialty
Pathology Specialist/Technologist
Specialty distribution in Illinois
How Pathology Specialist/Technologist compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pathology Specialist/Technologist. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1295178168 |
|---|---|
| Specialty | Pathology Specialist/Technologist |
| Gender | Male |
| NPI Issued | 04/10/2013 |
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to William Karpus. To verify William Karpus's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Pathology Specialist/Technologist Overview
How William Karpus fits within the Pathology Specialist/Technologist landscape nationally.
303
Pathology Specialist/Technologist Providers in US
43
States with Pathology Specialist/Technologist
Nationwide Pathology Specialist/Technologist peers with similar MIPS or enrollment year
Two federal-record peer sets for Karpus, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2013)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pathology Specialist/Technologist Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Karpus.
One of 5 Pathology Specialist/Technologist providers enrolled in Illinois, 4 are shown here.
Tara England
Elkhart, IL
Dr. Jesus Martinez
MD
Freeport, IL
Dr. Sam Roh
MD
Freeport, IL
Emma Smith
Chicago, IL
Compare Pathology Specialist/Technologist nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Karpus's specialty? ▼
William Karpus specializes in Pathology Specialist/Technologist and practices in Chicago, Illinois.
Where is William Karpus located? ▼
William Karpus is located at 303 E CHICAGO AVE, Chicago, IL, 60611. Phone: (312) 503-1004.
What is William Karpus's NPI number? ▼
William Karpus's National Provider Identifier (NPI) is 1295178168, issued on 04/10/2013.
How many Pathology Specialist/Technologist providers are there in the US? ▼
There are 303 Pathology Specialist/Technologist providers across 43 states in the US.
Does William Karpus accept Medicare? ▼
William Karpus appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Karpus's credentials? ▼
William Karpus's NPI is 1295178168. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.