Dr. Timothy J. Bresnahan, MD
- Medicare services, 2024
- 561
- Medicare patients, 2024
- 207
- Part D claims, 2024
- 3,358
- MIPS score, 2024
- 85
- Affiliated sites
- 2
- Practice address
- 155 E Brush Hill Rd, Elmhurst, IL 60126
- Practice phone
- Call (331) 221-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Elmhurst Hospital
Elmhurst, Illinois
Find Dr. Bresnahan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Timothy J. Bresnahan is an internist in Elmhurst, Illinois
Dr. Bresnahan practices at Elmhurst Hospital in Elmhurst, Illinois.
Dr. Bresnahan's NPI, 1265538433, was assigned on September 15, 2006. Dr. Bresnahan graduated from Loyola University of Chicago, Stritch School of Medicine in 1974. Dr. Bresnahan holds Illinois license 036053548.
- NPI
- 1265538433NPI Registry (opens in a new tab)
- NPI enumeration date
- September 15, 2006
- NPI status
- Active
- Practice phone
- (331) 221-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Timothy J. Bresnahan practices at Elmhurst Hospital in Elmhurst, Illinois
Dr. Bresnahan's primary practice is Elmhurst Hospital, at 155 E Brush Hill Rd, Elmhurst, IL 60126 in Dupage County. The practice phone is (331) 221-1000.
- Elmhurst Hospital155 E Brush Hill Rd, Elmhurst, IL 60126 · Dupage CountyPhone(331) 221-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Timothy J. Bresnahan is affiliated with 3 sites of care and 2 medical groups
Dr. Bresnahan's primary practice is Elmhurst Hospital in Elmhurst, Illinois. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Bresnahan to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Timothy J. 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 |
|---|---|
| Elmhurst Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy J. Bresnahan is one of 5,652 internists in Illinois
Internal medicine is Dr. Bresnahan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bresnahan is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
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. Timothy J. Bresnahan billed Medicare for 561 services in 2024
CMS data shows 561 Medicare services from Dr. Bresnahan across 7 procedure codes in 2024, for 207 Medicare patients. Medicare paid $49,353 for them. Every service was in an office.
Dr. Bresnahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5842024: 34940%
- Other services
- 2023: 2412024: 9959%
- Tests and treatments
- 2023: 1812024: 9050%
- Lab and pathology
- 2023: 672024: 2366%
Dr. Bresnahan compared with the Illinois median for internists, 2024
- Dr. Bresnahan
- Illinois median
- Medicare services
- 561vs 566Close to median
- Medicare patients
- 207vs 208Close to median
- Part D claims
- 2,928vs 28410.3 times
Medians across 5,192 internists in Illinois 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. Timothy J. Bresnahan treated 207 Medicare patients in 2024, average age 79
CMS counts 207 Medicare patients who saw Dr. Bresnahan in 2024. The largest group is 75 to 84, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bresnahan's median patient age at 74, with 42% 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
- Women7938%
- Men12862%
Chronic conditions among Dr. Bresnahan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Chronic kidney disease45%
- Ischemic heart disease30%
- Diabetes25%
- Atrial fibrillation21%
- Cancer18%
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 74
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy J. Bresnahan wrote 3,358 Medicare Part D claims in 2024
In 2024, Dr. Bresnahan wrote 3,358 Medicare Part D claims for 334 patients. 93% of them were for generic drugs. CMS names the drug for 2,928 of them, across 56 drugs with 11 or more claims each, at $93,428 in total drug cost. In 2023, CMS named 3,610 claims across 59 drugs.
Dr. Bresnahan's Part D claims by kind of drug, 2024
- Generic3,109 claims93%
- Brand-name237 claims7%
- Other12 claims0%
Dr. Bresnahan'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.
Drug classes CMS tracks in Dr. Bresnahan's Part D claims, 2024
- Opioids1%25 of 3,358 claims
- Antibiotics4%137 of 3,358 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,6102024: 2,92819%
Drugs named by CMS: 56 in 2024, 59 in 2023.
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. Timothy J. Bresnahan scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Bresnahan for performance year 2024, reported as part of a group.
Dr. Bresnahan's MIPS scores, performance year 2024
- 85of 100Final score
- 75.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Timothy J. Bresnahan graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Bresnahan graduated from Loyola University of Chicago, Stritch School of Medicine in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy J. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 | Clinician Public Reporting: Overall MIPS Performance (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. Timothy J. 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. Timothy J. Bresnahan's NPI number?
Dr. Timothy J. Bresnahan's NPI number is 1265538433. It was assigned on September 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy J. Bresnahan?
Dr. Timothy J. Bresnahan is an internist in Elmhurst, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Timothy J. Bresnahan practice?
Dr. Bresnahan practices at 155 E Brush Hill Rd, Elmhurst, IL 60126. Dr. Bresnahan's primary practice is Elmhurst Hospital in Elmhurst, Illinois. Dmand AI also links Dr. Bresnahan to 2 group practices and clinics and 1 medical group.
What is Dr. Timothy J. Bresnahan's office phone number?
The practice phone on file for Dr. Bresnahan is (331) 221-1000.
What is Dr. Timothy J. Bresnahan's medical license number?
Dr. Bresnahan holds Illinois license 036053548.
What medical group is Dr. Timothy J. Bresnahan part of?
Dr. Bresnahan is linked to Endeavor Health Medical Group. Dmand AI links Dr. Bresnahan to 1 more medical group.
Does Dr. Timothy J. Bresnahan accept Medicare?
Yes. CMS data shows Dr. Bresnahan billed Medicare for 561 services in 2024.
What is Dr. Timothy J. Bresnahan's MIPS score?
Dr. Bresnahan's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. Timothy J. Bresnahan see?
CMS counts 207 Medicare patients who saw Dr. Bresnahan in 2024, with an average age of 79.
What services does Dr. Timothy J. Bresnahan bill to Medicare?
In 2024, Dr. Bresnahan's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and heart test or procedure (93000).
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Where did Dr. Timothy J. Bresnahan go to medical school?
Dr. Bresnahan graduated from Loyola University of Chicago, Stritch School of Medicine in 1974.
What drugs does Dr. Timothy J. Bresnahan prescribe most?
In 2024 Medicare Part D data, Dr. Bresnahan's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
How long has Dr. Timothy J. Bresnahan been practicing?
Dr. Bresnahan graduated from medical school in 1974, 52 years ago.
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