NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1891856324 N.P.
Verify on CMS → Mary Bisaga, N.P.
Obstetrics & Gynecology Nurse Practitioner in Oak Lawn, 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 2,867 in Obstetrics & Gynecology Nurse Practitioner, 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.
Industry payments
$376.04
19 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mary Bisaga, N.P. is a Obstetrics & Gynecology Nurse Practitioner in Oak Lawn, Illinois, listed in the federal CMS National Provider Identifier registry.
- $376.04
- industry payments (Sunshine Act)
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.
What does the federal data show about Mary Bisaga, N.P.?
Quality data not reportedPrimary specialty
Obstetrics & Gynecology Nurse Practitioner
Specialty distribution in Illinois
How Obstetrics & Gynecology Nurse Practitioner 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 Obstetrics & Gynecology Nurse Practitioner. 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).
Mary Bisaga, N.P. appears in the CMS NPPES registry as an Obstetrics & Gynecology Nurse Practitioner provider holding N.P. credentials at 4700 W 95TH ST, Oak Lawn, IL, 60453, with a listed phone of (708) 857-7230. NPI 1891856324 was issued on 12/12/2006.
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 Obstetrics & Gynecology Nurse Practitioner providers operate outside Part D entirely.
Obstetrics & Gynecology Nurse Practitioner is a narrow specialty nationwide, with 2,867 enrolled providers across 52 states and an average of 232 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
Provider Details
| NPI | 1891856324 |
|---|---|
| Specialty | Obstetrics & Gynecology Nurse Practitioner |
| Credentials | N.P. |
| Gender | Female |
| NPI Issued | 12/12/2006 |
Hospital and facility affiliations
Facilities where Mary Bisaga, N.P. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Foti Chronopoulos MD SC
Oak Lawn, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mary Bisaga, N.P.. Source: openpaymentsdata.cms.gov.
Total received
$376
Largest payer
Exact Sciences Corporation
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
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 Mary Bisaga, N.P.. To verify Mary Bisaga, N.P.'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.
More Obstetrics & Gynecology Nurse Practitioner in IL →
All providers in Illinois →
Compare specialties →
Obstetrics & Gynecology Nurse Practitioner Overview
How Mary Bisaga, N.P. fits within the Obstetrics & Gynecology Nurse Practitioner landscape nationally.
2,867
Obstetrics & Gynecology Nurse Practitioner Providers in US
52
States with Obstetrics & Gynecology Nurse Practitioner
232
Avg Claims per Provider
Nearby Obstetrics & Gynecology Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Bisaga.
Dr. Kristy Amore
CNP
Wheeling, IL
Dr. Adrienne Arnold
MSN, APRN, FNP-C
Chicago, IL
Dr. Cindy Auld
FNP
Belleville, IL
Dr. Patricia Brandon
NP
Rockford, IL
Dr. Stephanie Broderick
CNM, WHNP-BC
Aurora, IL
Compare Obstetrics & Gynecology Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics & Gynecology Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Frequently Asked Questions
What is Mary Bisaga, N.P.'s specialty? ▼
Mary Bisaga, N.P. specializes in Obstetrics & Gynecology Nurse Practitioner and practices in Oak Lawn, Illinois. Credentials: N.P..
Where is Mary Bisaga, N.P. located? ▼
Mary Bisaga, N.P. is located at 4700 W 95TH ST, Oak Lawn, IL, 60453. Phone: (708) 857-7230.
What is Mary Bisaga, N.P.'s NPI number? ▼
Mary Bisaga, N.P.'s National Provider Identifier (NPI) is 1891856324, issued on 12/12/2006.
How many Obstetrics & Gynecology Nurse Practitioner providers are there in the US? ▼
There are 2,867 Obstetrics & Gynecology Nurse Practitioner providers across 52 states in the US. The average Obstetrics & Gynecology Nurse Practitioner provider writes 232 Medicare Part D claims per year.
Does Mary Bisaga, N.P. accept Medicare? ▼
Mary Bisaga, N.P. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Bisaga, N.P.'s credentials? ▼
Mary Bisaga, N.P.'s NPI is 1891856324 with credentials N.P.. 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 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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.