Dr. Darius J. Bartkus, MD
- Medicare services, 2024
- 134
- Medicare patients, 2024
- 83
- Hospital affiliations
- 3
- Industry payments
- $18
- Medical groups
- 2
- Practice address
- 3249 South Oak Park Avenue, Berwyn, IL 60402
- Practice phone
- Call (708) 783-9100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bartkus' 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. Darius J. Bartkus is an internist in Berwyn, Illinois
Dr. Bartkus practices at MacNeal Hospital in Berwyn, Illinois, part of Trinity Health.
Dr. Bartkus' NPI, 1093836629, was assigned on April 2, 2007. Dr. Bartkus graduated from Loyola University of Chicago, Stritch School of Medicine in 1996.
- NPI
- 1093836629NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496849036
- NPI enumeration date
- April 2, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (708) 783-9100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darius J. Bartkus practices at MacNeal Hospital in Berwyn, Illinois
Dr. Bartkus' primary practice is MacNeal Hospital, at 3249 South Oak Park Avenue, Berwyn, IL 60402 in Cook County. The practice phone is (708) 783-9100.
- MacNeal Hospital3249 South Oak Park Avenue, Berwyn, IL 60402 · Cook CountyPhone(708) 783-9100
Source: Dmand AI Affiliation Data
Dr. Darius J. Bartkus is affiliated with 3 sites of care and 2 medical groups
Dr. Bartkus' primary practice is MacNeal Hospital in Berwyn, Illinois, part of Trinity Health. Dr. Bartkus is also affiliated with Loyola University Medical Center. The medical group on file is Loyola University Medical Center. Dmand AI also links Dr. Bartkus to 1 more hospital and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Darius J. Bartkus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bartkus practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MacNeal Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Darius J. Bartkus is one of 5,652 internists in Illinois
Internal medicine is Dr. Bartkus' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bartkus has a license on file in Illinois.
Specialties and state licenses
- Internal medicine, Illinois
Internists near Dr. Bartkus
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. Darius J. Bartkus billed Medicare for 134 services in 2024
CMS data shows 134 Medicare services from Dr. Bartkus across 5 procedure codes in 2024, for 83 Medicare patients. Medicare paid $12,377 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Bartkus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 872024: 7020%
- Surgery
- 2023: 232024: 4074%
- Imaging
- 2023: 272024: 2411%
Dr. Bartkus compared with the Illinois median for internists, 2024
- Dr. Bartkus
- Illinois median
- Medicare services
- 134vs 56676% below
- Medicare patients
- 83vs 20860% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Bartkus' 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.
Need commercial claims for Dr. Bartkus?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bartkus and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darius J. Bartkus treated 83 Medicare patients in 2024, average age 76
CMS counts 83 Medicare patients who saw Dr. Bartkus in 2024. The largest group is 75 to 84, with 30 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 52% are also on Medicaid. Their average risk score is 3.83, 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. Bartkus' median patient age at 73, with 48% women.
Dr. Bartkus' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bartkus' Medicare patients by sex, 2024
- Women5060%
- Men3340%
Chronic conditions among Dr. Bartkus' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes72%
- Chronic kidney disease65%
- Ischemic heart disease64%
- Heart failure60%
- Arthritis59%
- Anxiety45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bartkus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Darius J. Bartkus takes part in Medicare
Dr. Bartkus accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Darius J. Bartkus received $18 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Bartkus from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Celgene Corporation paid the most, $18.
Companies that paid Dr. Bartkus the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Darius J. Bartkus graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Bartkus graduated from Loyola University of Chicago, Stritch School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Darius J. Bartkus'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Darius J. Bartkus
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. Darius J. Bartkus' NPI number?
Dr. Darius J. Bartkus' NPI number is 1093836629. It was assigned on April 2, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Darius J. Bartkus?
Dr. Darius J. Bartkus is an internist in Berwyn, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Darius J. Bartkus practice?
Dr. Bartkus practices at 3249 South Oak Park Avenue, Berwyn, IL 60402. Dr. Bartkus' primary practice is MacNeal Hospital in Berwyn, Illinois, part of Trinity Health. Dmand AI also links Dr. Bartkus to 1 hospital and 1 medical group.
What is Dr. Darius J. Bartkus' office phone number?
The practice phone on file for Dr. Bartkus is (708) 783-9100.
Which hospitals is Dr. Darius J. Bartkus affiliated with?
Dr. Bartkus practices at MacNeal Hospital in Berwyn, Illinois. Dr. Bartkus is also affiliated with Loyola University Medical Center. Dmand AI links Dr. Bartkus to 1 more hospital.
What medical group is Dr. Darius J. Bartkus part of?
Dr. Bartkus is linked to Loyola University Medical Center. Dmand AI links Dr. Bartkus to 1 more medical group.
Does Dr. Darius J. Bartkus accept Medicare?
Yes. CMS data shows Dr. Bartkus billed Medicare for 134 services in 2024, and Dr. Bartkus accepts Medicare assignment.
How many Medicare patients does Dr. Darius J. Bartkus see?
CMS counts 83 Medicare patients who saw Dr. Bartkus in 2024, with an average age of 76.
What services does Dr. Darius J. Bartkus bill to Medicare?
In 2024, Dr. Bartkus' most billed Medicare services were critical care (99291), surgery: heart and blood vessels (36620) and ultrasound (76937).
Where did Dr. Darius J. Bartkus go to medical school?
Dr. Bartkus graduated from Loyola University of Chicago, Stritch School of Medicine in 1996.
Has Dr. Darius J. Bartkus received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Bartkus from 1 company from 2018 to 2018. The largest total came from Celgene Corporation.
How long has Dr. Darius J. Bartkus been practicing?
Dr. Bartkus graduated from medical school in 1996, 30 years ago.
Selling to internal medicine practices?
See internists in Illinois by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card