NPI registry status
Active
2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1669712808 MD
Verify on CMS → Kathryn Pajak, MD
Emergency Medical Services (Emergency Medicine) 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 3,618 in Emergency Medical Services (Emergency Medicine) 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.
What the federal data shows
Kathryn Pajak, MD is an Emergency Medical Services (Emergency Medicine) Physician in Chicago, Illinois, listed in the federal CMS National Provider Identifier registry.
- #126
- Emergency Medical Services (Emergency Medicine) Physician 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.
CMS NPPES provider registry desk
NPI 1669712808 · Emergency Medical Services (Emergency Medicine) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1669712808
- ENUM-MID 2013
- TAX-NARROW 3,618
- RX-NONE No Part D
- BOOK-THIN 132 in Illinois
- PHOTO-ENUM Walter Grenell · 2013
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Board-eligible specialty (heuristic, not verified)
Kathryn Pajak, 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 Kathryn Pajak, MD?
Quality data not reportedPrimary specialty
Emergency Medical Services (Emergency Medicine) Physician
Specialty distribution in Illinois
How Emergency Medical Services (Emergency Medicine) Physician 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 Emergency Medical Services (Emergency Medicine) Physician. 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 | 1669712808 |
|---|---|
| Specialty | Emergency Medical Services (Emergency Medicine) Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 02/26/2013 |
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 Kathryn Pajak, MD. To verify Kathryn Pajak, 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.
More Emergency Medical Services (Emergency Medicine) Physician in IL →
All providers in Illinois →
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Emergency Medical Services (Emergency Medicine) Physician Overview
How Kathryn Pajak, MD fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.
3,618
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
394
Avg Claims per Provider
Nationwide Emergency Medical Services (Emergency Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Pajak, 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 Emergency Medical Services (Emergency Medicine) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Pajak.
One of 132 Emergency Medical Services (Emergency Medicine) Physician providers enrolled in Illinois, 5 are shown here.
Frequently Asked Questions
What is Kathryn Pajak, MD's specialty? ▼
Kathryn Pajak, MD specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in Chicago, Illinois. Credentials: MD.
Where is Kathryn Pajak, MD located? ▼
Kathryn Pajak, MD is located at 5659 S OAK PARK AVE, Chicago, IL, 60638. Phone: (714) 398-7000.
What is Kathryn Pajak, MD's NPI number? ▼
Kathryn Pajak, MD's National Provider Identifier (NPI) is 1669712808, issued on 02/26/2013.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US? ▼
There are 3,618 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 394 Medicare Part D claims per year.
Does Kathryn Pajak, MD accept Medicare? ▼
Kathryn Pajak, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kathryn Pajak, MD's credentials? ▼
Kathryn Pajak, MD's NPI is 1669712808 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
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
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.