Catherine M. Breen, PA-C

  • Willowbrook, IL
  • Physician assistant
NPI1922179266
Medicare services, 2024
1,346
Medicare patients, 2024
139
Part D claims, 2024
106
Affiliated sites
1
Medical groups
2
Practice address
10S418 Carrington Cir, Willowbrook, IL 60527
Practice phone
Call (410) 687-1383
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Comprehensive Rehab Consultants

Willowbrook, Illinois

See all 4 affiliations

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Catherine M. Breen is a physician assistant in Willowbrook, Illinois

Catherine Breen practices at Comprehensive Rehab Consultants in Willowbrook, Illinois.

Catherine Breen's NPI, 1922179266, was assigned on November 10, 2006. Catherine Breen holds Texas license PA09030.

NPI and contact details
NPI enumeration date
November 10, 2006
NPI status
Active
Practice phone
(410) 687-1383
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Catherine M. Breen practices at Comprehensive Rehab Consultants in Willowbrook, Illinois

Catherine Breen's primary practice is Comprehensive Rehab Consultants, at 10S418 Carrington Cir, Willowbrook, IL 60527 in Dupage County. The practice phone is (410) 687-1383.

  • Comprehensive Rehab Consultants
    10S418 Carrington Cir, Willowbrook, IL 60527 · Dupage CountyPhone(410) 687-1383

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Catherine M. Breen is affiliated with 2 sites of care and 2 medical groups

Catherine Breen's primary practice is Comprehensive Rehab Consultants in Willowbrook, Illinois. The medical group on file is Comprehensive Rehab Consultants (CRC). Dmand AI also links Catherine Breen to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Catherine Breen

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Catherine M. Breen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Catherine Breen practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Comprehensive Rehab ConsultantsAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Catherine M. Breen is one of 4,299 physician assistants in Illinois

Physician assistant is Catherine Breen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Catherine Breen is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Dmand AI has Catherine Breen's licenses on file in 3 states: Texas, Michigan and Ohio.

Specialties and state licenses

  • Physician assistant, TexasPrimaryLicense PA09030 · taxonomy 363A00000X
  • Michigan licenseLicense 5501002328
  • Physical therapist, OhioLicense PT-07350 · taxonomy 225100000X

Clinical focus

Dmand AI lists alzheimer's disease, fibromyalgia and chronic pain, hypersomnia, insomnia, itchy rashes, lower back pain, lupus and migraine and chronic headache among the conditions Catherine Breen treats.

Physician assistants near Catherine Breen

Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Catherine M. Breen billed Medicare for 1,346 services in 2024

CMS data shows 1,346 Medicare services from Catherine Breen across 4 procedure codes in 2024, for 139 Medicare patients. Medicare paid $83,472 for them.

Medicare services, 20241,346
Medicare patients139
Paid by Medicare$83,472
Procedure codes4

Where Catherine Breen's Medicare services took place, 2024

  • In an office19915%
  • In a facility1,14785%

Catherine Breen compared with the Illinois median for physician assistants, 2024

  • Catherine Breen
  • Illinois median
Medicare services
1,346vs 2724.9 times
Medicare patients
139vs 11422% above
Part D claims
22vs 20389% below

Medians across 2,606 physician assistants in Illinois with Dmand AI profiles that report each measure.

Catherine Breen's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Catherine M. Breen treated 139 Medicare patients in 2024, average age 78

CMS counts 139 Medicare patients who saw Catherine Breen in 2024. The largest group is 75 to 84, with 61 patients. 75% of them have high blood pressure, and 75% have mood disorders. 45% are also on Medicaid. Their average risk score is 2.55, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Catherine Breen's median patient age at 77, with 54% women.

Medicare patients, 2024139
Average age78
Average risk score2.55
Also on Medicaid45%

Catherine Breen's Medicare patients by age, 2024

Catherine Breen's Medicare patients by sex, 2024

  • Women8158%
  • Men5842%

Chronic conditions among Catherine Breen's Medicare patients, 2024

  1. High blood pressure75%
  2. Mood disorders75%
  3. High cholesterol72%
  4. Depression71%
  5. Arthritis63%
  6. Alzheimer's and dementia60%
  7. Anxiety56%
  8. Diabetes56%

Share of Medicare patients with each condition. A patient can have several.

Catherine Breen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 77

Patient panel by sex, all payers

  • Women54%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Catherine M. Breen wrote 106 Medicare Part D claims in 2024

In 2024, Catherine Breen wrote 106 Medicare Part D claims for 44 patients. 85% of them were for generic drugs. CMS names the drug for 22 of them, across 1 drug with 11 or more claims each, at $169 in total drug cost.

Part D claims, 2024106
Drugs named by CMS1
Total drug cost$169
Part D patients44

Catherine Breen's Part D claims by kind of drug, 2024

  • Generic90 claims85%
  • Brand-name16 claims15%

Catherine Breen's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

See all prescribing by Catherine Breen

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Catherine M. Breen is board certified in certified physician assistant

Catherine Breen is a member of AAPA.

  1. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Catherine M. Breen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Catherine M. Breen

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Catherine M. Breen's NPI number?

Catherine M. Breen's NPI number is 1922179266. It was assigned on November 10, 2006, and it is active in the NPI Registry.

What does Catherine M. Breen specialize in?

Catherine M. Breen is a physician assistant in Willowbrook, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Catherine M. Breen practice?

Catherine Breen practices at 10S418 Carrington Cir, Willowbrook, IL 60527. Catherine Breen's primary practice is Comprehensive Rehab Consultants in Willowbrook, Illinois. Dmand AI also links Catherine Breen to 1 group practice or clinic and 1 medical group.

What is Catherine M. Breen's office phone number?

The practice phone on file for Catherine Breen is (410) 687-1383.

What is Catherine M. Breen's medical license number?

Catherine Breen holds Texas license PA09030, one of the licenses on file in 3 states.

Which states has Catherine M. Breen been licensed in?

Dmand AI has state licenses on file for Catherine Breen in Texas, Michigan and Ohio.

What medical group is Catherine M. Breen part of?

Catherine Breen is linked to Comprehensive Rehab Consultants (CRC). Dmand AI links Catherine Breen to 1 more medical group.

Does Catherine M. Breen accept Medicare?

Yes. CMS data shows Catherine Breen billed Medicare for 1,346 services in 2024.

How many Medicare patients does Catherine M. Breen see?

CMS counts 139 Medicare patients who saw Catherine Breen in 2024, with an average age of 78.

Is Catherine M. Breen board certified?

Yes. Catherine Breen is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

Show 3 more questionsShow fewer questions

What services does Catherine M. Breen bill to Medicare?

In 2024, Catherine Breen's most billed Medicare services were nursing facility care (99308), nursing facility care (99309) and nursing facility care (99305).

What drugs does Catherine M. Breen prescribe most?

In 2024 Medicare Part D data, Catherine Breen's most prescribed drugs by claims were Gabapentin.

How long has Catherine M. Breen been practicing?

Catherine Breen graduated from medical school in 2014, 12 years ago.

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