Dr. Cassandra Maria Bresnahan, MD
- Medicare services, 2024
- 107
- Medicare patients, 2024
- 62
- Part D claims, 2024
- 70
- MIPS score, 2024
- 89
- Hospital affiliations
- 2
- Practice address
- 1338 Phay Ave, Canon City, CO 81212
- Practice phone
- Call (719) 285-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bresnahan's professional email, personal email and mobile number
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Dr. Cassandra Maria Bresnahan is an internist in Canon City, Colorado
Dr. Bresnahan practices at CommonSpirit - St. Thomas More Hospital in Canon City, Colorado, part of CommonSpirit Health.
Dr. Bresnahan's NPI, 1922031921, was assigned on July 10, 2006. Dr. Bresnahan graduated from University of Toledo College of Medicine in 2003. Dr. Bresnahan holds Colorado license 43762.
- NPI
- 1922031921NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072638154
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (719) 285-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cassandra Maria Bresnahan practices at CommonSpirit - St. Thomas More Hospital in Canon City, Colorado
Dr. Bresnahan's primary practice is CommonSpirit - St. Thomas More Hospital, at 1338 Phay Ave, Canon City, CO 81212 in Fremont County. The practice phone is (719) 285-2000.
- CommonSpirit - St. Thomas More Hospital1338 Phay Ave, Canon City, CO 81212 · Fremont CountyPhone(719) 285-2000
Source: Dmand AI Affiliation Data
Dr. Cassandra Maria Bresnahan is affiliated with 2 sites of care and 1 medical group
Dr. Bresnahan's primary practice is CommonSpirit - St. Thomas More Hospital in Canon City, Colorado, part of CommonSpirit Health. Dr. Bresnahan is also affiliated with Sterling Regional MedCenter. The medical group on file is Red Mountain Internal Medicine.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Cassandra Maria Bresnahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bresnahan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CommonSpirit - St. Thomas More Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Cassandra Maria Bresnahan is one of 1,668 internists in Colorado
Internal medicine is Dr. Bresnahan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bresnahan is licensed in Colorado.
Specialties and state licenses
- Internal medicine, ColoradoPrimary
Internists near Dr. Bresnahan
Counts of internists 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
Dr. Cassandra Maria Bresnahan billed Medicare for 107 services in 2024
CMS data shows 107 Medicare services from Dr. Bresnahan across 4 procedure codes in 2024, for 62 Medicare patients. Medicare paid $9,632 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Bresnahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2822024: 10762%
Dr. Bresnahan compared with the Colorado median for internists, 2024
- Dr. Bresnahan
- Colorado median
- Medicare services
- 107vs 37772% below
- Medicare patients
- 62vs 18667% below
- Part D claims
- 13vs 31896% below
Medians across 1,630 internists in Colorado with Dmand AI profiles that report each measure.
Dr. Bresnahan'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
Dr. Cassandra Maria Bresnahan treated 62 Medicare patients in 2024, average age 75
CMS counts 62 Medicare patients who saw Dr. Bresnahan in 2024. The largest group is 65 to 74, with 24 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 40% are also on Medicaid. Their average risk score is 1.87, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Bresnahan's median patient age at 77, with 53% women.
Dr. Bresnahan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bresnahan's Medicare patients by sex, 2024
- Women3455%
- Men2845%
Chronic conditions among Dr. Bresnahan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis60%
- Mood disorders47%
- Depression44%
- Heart failure44%
- COPD40%
- Chronic kidney disease40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bresnahan'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
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Cassandra Maria Bresnahan wrote 70 Medicare Part D claims in 2024
In 2024, Dr. Bresnahan wrote 70 Medicare Part D claims for 33 patients. 76% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $24 in total drug cost. In 2022, CMS named 11 claims across 1 drug.
Dr. Bresnahan's Part D claims by kind of drug, 2024
- Generic53 claims76%
- Brand-name17 claims24%
Dr. Bresnahan's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Bresnahan's Part D claims, 2024
- Antibiotics24%17 of 70 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 112023: 1318%
Drugs named by CMS: 1 in 2023, 1 in 2022.
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
Dr. Cassandra Maria Bresnahan scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Bresnahan for performance year 2024, reported as part of a group. Dr. Bresnahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Bresnahan's MIPS scores, performance year 2024
- 89of 100Final score
- 89.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Cassandra Maria Bresnahan received $16 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Bresnahan from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Theravance Biopharma, Inc. paid the most, $16.
Companies that paid Dr. Bresnahan the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cassandra Maria Bresnahan graduated from University of Toledo College of Medicine
Dr. Bresnahan graduated from University of Toledo College of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cassandra Maria Bresnahan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Cassandra Maria Bresnahan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Cassandra Maria Bresnahan's NPI number?
Dr. Cassandra Maria Bresnahan's NPI number is 1922031921. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Cassandra Maria Bresnahan?
Dr. Cassandra Maria Bresnahan is an internist in Canon City, Colorado. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Cassandra Maria Bresnahan practice?
Dr. Bresnahan practices at 1338 Phay Ave, Canon City, CO 81212. Dr. Bresnahan's primary practice is CommonSpirit - St. Thomas More Hospital in Canon City, Colorado, part of CommonSpirit Health.
What is Dr. Cassandra Maria Bresnahan's office phone number?
The practice phone on file for Dr. Bresnahan is (719) 285-2000.
What is Dr. Cassandra Maria Bresnahan's medical license number?
Dr. Bresnahan holds Colorado license 43762.
Which hospitals is Dr. Cassandra Maria Bresnahan affiliated with?
Dr. Bresnahan practices at CommonSpirit - St. Thomas More Hospital in Canon City, Colorado. Dr. Bresnahan is also affiliated with Sterling Regional MedCenter.
What medical group is Dr. Cassandra Maria Bresnahan part of?
Dr. Bresnahan is linked to Red Mountain Internal Medicine.
Does Dr. Cassandra Maria Bresnahan accept Medicare?
Yes. CMS data shows Dr. Bresnahan billed Medicare for 107 services in 2024, and Dr. Bresnahan accepts Medicare assignment.
What is Dr. Cassandra Maria Bresnahan's MIPS score?
Dr. Bresnahan's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Cassandra Maria Bresnahan see?
CMS counts 62 Medicare patients who saw Dr. Bresnahan in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Cassandra Maria Bresnahan bill to Medicare?
In 2024, Dr. Bresnahan's most billed Medicare services were hospital inpatient care (99239), hospital inpatient care (99232) and hospital inpatient care (99233).
Where did Dr. Cassandra Maria Bresnahan go to medical school?
Dr. Bresnahan graduated from University of Toledo College of Medicine in 2003.
What drugs does Dr. Cassandra Maria Bresnahan prescribe most?
In 2023 Medicare Part D data, Dr. Bresnahan's most prescribed drugs by claims were Prednisone.
Has Dr. Cassandra Maria Bresnahan received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Dr. Bresnahan from 1 company from 2017 to 2017. The largest total came from Theravance Biopharma, Inc.
How long has Dr. Cassandra Maria Bresnahan been practicing?
Dr. Bresnahan graduated from medical school in 2003, 23 years ago.
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