2026 NPPES data Neuropathology Physician NPI 1639145311 MD
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EILEEN BIGIO, MD

Neuropathology Physician in CHICAGO, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.

What the federal data shows

EILEEN BIGIO, MD is a Neuropathology Physician in CHICAGO, Illinois, listed in the federal CMS National Provider Identifier registry.

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.

Board-eligible specialty (heuristic — not verified)

EILEEN BIGIO, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about EILEEN BIGIO, MD?

Quality data not reported

NPI registry status

Active

Issued 02/23/2006

NPI 1639145311

Primary specialty

Neuropathology Physician

Rare

337 US NPIs in this specialty

Specialty distribution in Illinois

How Neuropathology Physician compares to other specialties among Illinois providers

Illinois providers

Neuropathology Physician share within Illinois

1. Neuropathology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neuropathology Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Neuropathology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neuropathology Physician ABMS/AOA estimate

Est. board-certified rate (Neuropathology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neuropathology Physician) — ABMS / AOA estimate

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).

EILEEN BIGIO, MD appears in the CMS NPPES registry as a Neuropathology Physician provider holding MD credentials at 710 N FAIRBANKS CT, CHICAGO, IL, 60611, with a listed phone of (312) 926-9543. NPI 1639145311 was issued on 02/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BIGIO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Neuropathology Physician providers operate outside Part D entirely.

Neuropathology Physician is a narrow specialty nationwide, with 337 enrolled providers across 43 states and an average of 358 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

710 N FAIRBANKS CT
CHICAGO, IL 60611

Provider Details

NPI 1639145311
Specialty Neuropathology Physician
Credentials MD
Gender Female
NPI Issued 02/23/2006

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 EILEEN BIGIO, MD. To verify EILEEN BIGIO, MD'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.

Neuropathology Physician Overview

How EILEEN BIGIO, MD fits within the Neuropathology Physician landscape nationally.

337
Neuropathology Physician Providers in US
43
States with Neuropathology Physician
358
Avg Claims per Provider

Nearby Neuropathology Physician Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as BIGIO.

Compare Neuropathology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is EILEEN BIGIO, MD's specialty?
EILEEN BIGIO, MD specializes in Neuropathology Physician and practices in CHICAGO, Illinois. Credentials: MD.
Where is EILEEN BIGIO, MD located?
EILEEN BIGIO, MD is located at 710 N FAIRBANKS CT, CHICAGO, IL, 60611. Phone: (312) 926-9543.
What is EILEEN BIGIO, MD's NPI number?
EILEEN BIGIO, MD's National Provider Identifier (NPI) is 1639145311, issued on 02/23/2006.
How many Neuropathology Physician providers are there in the US?
There are 337 Neuropathology Physician providers across 43 states in the US. The average Neuropathology Physician provider writes 358 Medicare Part D claims per year.
Does EILEEN BIGIO, MD accept Medicare?
EILEEN BIGIO, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify EILEEN BIGIO, MD's credentials?
EILEEN BIGIO, MD's NPI is 1639145311 with credentials MD. 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

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 April 2026 (NPPES) / 2023 (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