NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1003347055
Verify on CMS → Elizabeth Isak
Obstetrics & Gynecology Physician 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 44,326 in Obstetrics & Gynecology Physician, 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.
MIPS score
94.1/100
▲ 11 pts above national avg 83.5 · Exceptional
Industry payments
$19.18
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Elizabeth Isak reported a CMS MIPS final score of 94.1/100 - above the 83.5 national average.
- 94.1/100
- MIPS score · +11 vs avg
- Likely
- board-certified (heuristic)
- ≥73rd
- pct among measured MIPS (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1003347055 · Obstetrics & Gynecology Physician
NPI-10 · ENUM-RECENT · TAX-MID · MIPS-ELITE · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1003347055
- ENUM-RECENT 2017
- TAX-MID 44K Obstetrics &
- MIPS-ELITE 94.1/100
- BOOK-LIGHT 1,925 in Illinois
- PHOTO-FINISH Nevert Badreldin · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Isak · this prov…
Isak · this provider
94.1 MIPS pts
- Leanne McCloskey…
Leanne McCloskey
94.1 MIPS pts
- Nevert Badreldin…
Nevert Badreldin
94.1 MIPS pts
- Christina Boots …
Christina Boots
94.1 MIPS pts
- Martin Gallo · n…
Martin Gallo
94.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Elizabeth Isak's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
94 ≥ 73rd percentile 73% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
✓
Board certification likely (heuristic, not verified)
Elizabeth Isak practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Elizabeth Isak?
High performer (top quartile)Primary specialty
Obstetrics & Gynecology Physician
MIPS final score
94.1/100 10.6 pts vs avg
Specialty distribution in Illinois
How Obstetrics & Gynecology Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Elizabeth Isak's 2023 MIPS final score plotted against the Obstetrics & Gynecology Physician national average
- MIPS Final Score
- 94.1/100
- vs 83.5 national avg · 2023 performance year
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 | 1003347055 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Gender | Female |
| NPI Issued | 03/22/2017 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.1036
Final Score
Measured-score avg: 83.5
82.5938
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Elizabeth Isak 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.
Northwestern Medical Faculty Foundation
Chicago, 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 Elizabeth Isak. Source: openpaymentsdata.cms.gov.
Total received
$19
Largest payer
Organon Llc
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 Elizabeth Isak. To verify Elizabeth Isak'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.
Obstetrics & Gynecology Physician Overview
How Elizabeth Isak fits within the Obstetrics & Gynecology Physician landscape nationally.
44,326
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider
Nationwide Obstetrics & Gynecology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Isak, both outside Illinois so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (94.1 here).
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Obstetrics & Gynecology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Isak.
One of 1,925 Obstetrics & Gynecology Physician providers enrolled in Illinois, 5 are shown here.
Dr. Anum Abbasi
MD
Chicago, IL
Dr. Rana Abdul-Khalek
MD
Roscoe, IL
Dr. Idries Abdur-Rahman
M.D.
Ottawa, IL
Dr. Jamil Abdur-Rahman
M.D.
Gurnee, IL
Dr. Greta Abel
PA-C
Wheaton, IL
Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Elizabeth Isak's specialty? ▼
Elizabeth Isak specializes in Obstetrics & Gynecology Physician and practices in Chicago, Illinois.
What is Elizabeth Isak's Medicare quality score? ▼
Elizabeth Isak has a CMS MIPS Final Score of 94.1/100 (Quality: 82.6). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Elizabeth Isak located? ▼
Elizabeth Isak is located at 680 N LAKE SHORE DR STE 810, Chicago, IL, 60611. Phone: (312) 926-8811.
What is Elizabeth Isak's NPI number? ▼
Elizabeth Isak's National Provider Identifier (NPI) is 1003347055, issued on 03/22/2017.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 44,326 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
Does Elizabeth Isak accept Medicare? ▼
Elizabeth Isak appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Elizabeth Isak's credentials? ▼
Elizabeth Isak's NPI is 1003347055. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.