2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1982995478 M.D.
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KATHRYN RADIGAN, M.D.

Critical Care Medicine (Internal Medicine) 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.
Prescribing volume
873
Medicare Part D claims · 108 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
34%
generic claims · 66% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.5729/100
▲ 1 pts above national avg 83.1 · [object Object]
Industry payments
$67.62
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KATHRYN RADIGAN, M.D. reported a CMS MIPS final score of 84.5729/100 — above the 83.1 national average — and filed 873 Medicare Part D claims in 2023.

84.5729/100
MIPS score · +1 vs avg
873
Part D claims, 2023
34%
generic prescribing
Likely
board-certified (heuristic)

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.

KATHRYN RADIGAN, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

85 45th percentile higher than 45% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

KATHRYN RADIGAN, M.D. 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 KATHRYN RADIGAN, M.D.?

Near national average

NPI registry status

Active

Issued 05/02/2011

NPI 1982995478

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

873 18% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

MIPS final score

84.5729/100 1.4729000000000099% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Illinois

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Illinois providers

Illinois providers

Critical Care Medicine (Internal Medicine) Physician share within Illinois

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within Illinois

Medicare quality performance — MIPS

KATHRYN RADIGAN, M.D.'s 2023 MIPS final score plotted against the Critical Care Medicine (Internal Medicine) Physician national average

Near national average
MIPS Final Score
84.5729/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Critical Care Medicine (Internal Medicine) Physician) — 84.5729/100 vs national avg 83.1

0%100%National avg83%84.6%
MIPS final score (Critical Care Medicine (Internal Medicine) Physician) — 84.5729/100 vs national avg 83.1

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).

KATHRYN RADIGAN, M.D. appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding M.D. credentials at 1901 W HARRISON ST, CHICAGO, IL, 60612, with a listed phone of (312) 864-3109. NPI 1982995478 was issued on 05/02/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RADIGAN 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 records for calendar year 2023 show 873 prescription claims written by this provider, covering 108 Medicare beneficiaries and totaling roughly $264K in drug spend, split 66% brand-name and 34% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 84.5729/100 for the 2023 performance year (Quality 60.2504, Cost 67.0015), compared with the national average of 83.1.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

1901 W HARRISON ST
CHICAGO, IL 60612

Provider Details

NPI 1982995478
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 05/02/2011

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

84.5729
Final Score
Avg: 83.1
60.2504
Quality
67.0015
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where KATHRYN RADIGAN, M.D. 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.

COOK COUNTY
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 KATHRYN RADIGAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$68

Largest payer

GlaxoSmithKline, 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 KATHRYN RADIGAN, M.D.. To verify KATHRYN RADIGAN, M.D.'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.

Brand vs generic prescribing mix · Brand-heavy

KATHRYN RADIGAN, M.D. — brand share 66.0%
Specialty average (est.)

66% brand-name claims vs 34% generic, on 873 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

873
Total Claims
$264K
Total Drug Cost
108
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,631
Total Day Supply
46,538
Brand vs Generic
66% brand / 34% generic
Brand Drug Cost
$242K
Generic Drug Cost
$22K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
67.4 years
Avg HCC Risk Score
2.28
Gender Split
71% female / 29% male
Age Distribution
<65: 27, 65-74: 68, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What KATHRYN RADIGAN, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Albuterol Sulfate Hfa
Albuterol Sulfate
179
Incruse Ellipta
Umeclidinium Bromide
127
Ventolin Hfa
Albuterol Sulfate
102
Advair Diskus
Fluticasone Propion/Salmeterol
83
Fluticasone Propionate
59
Symbicort
Budesonide/Formoterol Fumarate
53
Prednisone
33
Spiriva Handihaler
Tiotropium Bromide
29
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
26
Montelukast Sodium
25

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Critical Care Medicine (Internal Medicine) Physician Overview

How KATHRYN RADIGAN, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

KATHRYN RADIGAN, M.D.'s 873 claims are below the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Illinois

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

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATHRYN RADIGAN, M.D.'s specialty?
KATHRYN RADIGAN, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in CHICAGO, Illinois. Credentials: M.D..
How much does KATHRYN RADIGAN, M.D. prescribe under Medicare Part D?
In 2023, KATHRYN RADIGAN, M.D. wrote 873 Medicare Part D claims totaling $264K in drug costs for 108 beneficiaries.
What is KATHRYN RADIGAN, M.D.'s Medicare quality score?
KATHRYN RADIGAN, M.D. has a CMS MIPS Final Score of 84.5729/100 (Quality: 60.2504, Cost: 67.0015). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KATHRYN RADIGAN, M.D. located?
KATHRYN RADIGAN, M.D. is located at 1901 W HARRISON ST, CHICAGO, IL, 60612. Phone: (312) 864-3109.
What is KATHRYN RADIGAN, M.D.'s NPI number?
KATHRYN RADIGAN, M.D.'s National Provider Identifier (NPI) is 1982995478, issued on 05/02/2011.
Does KATHRYN RADIGAN, M.D. prescribe more brand-name or generic drugs?
KATHRYN RADIGAN, M.D.'s prescribing is 66% brand-name and 34% generic drugs by claim count, with $242K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does KATHRYN RADIGAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KATHRYN RADIGAN, M.D.'s most frequently prescribed drugs include Albuterol Sulfate Hfa, Incruse Ellipta, Ventolin Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHRYN RADIGAN, M.D. accept Medicare?
KATHRYN RADIGAN, M.D. appears in CMS Medicare data with 873 Part D claims and 108 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHRYN RADIGAN, M.D.'s credentials?
KATHRYN RADIGAN, M.D.'s NPI is 1982995478 with credentials M.D.. 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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