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Dr. Jack David Markiewicz, MD
NPI1003066325PAC ID1355587106
- Medicare services, 2024
- 4,247
- Medicare patients, 2024
- 2,895
- Clinical trials
- 10
- Hospital affiliations
- 5
- Industry payments
- $27
- Practice address
- 1331 State Street, La Porte, IN 46350
- Practice phone
- Call (219) 326-2444
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwest Health - La Porte
Mammography / Breast Imaging Center · La Porte, Indiana
Find Dr. Markiewicz's professional email, personal email and mobile number
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Dr. Jack David Markiewicz is a diagnostic radiologist in La Porte, Indiana
Dr. Markiewicz practices at Northwest Health - La Porte in La Porte, Indiana.
Dr. Markiewicz's NPI, 1003066325, was assigned on September 23, 2008. Dr. Markiewicz holds Indiana license 01072267A.
NPI and contact details
- NPI
- 1003066325NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355587106
- NPI enumeration date
- September 23, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (219) 326-2444
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jack David Markiewicz practices at Northwest Health - La Porte in La Porte, Indiana
Dr. Markiewicz's primary practice is Northwest Health - La Porte, at 1331 State Street, La Porte, IN 46350. The practice phone is (219) 326-2444.
- Northwest Health - La Porte1331 State Street, La Porte, IN 46350Phone(219) 326-2444
Source: Dmand AI Affiliation Data
Dr. Jack David Markiewicz is affiliated with 7 sites of care and 2 medical groups
Dr. Markiewicz's primary practice is Northwest Health - La Porte in La Porte, Indiana. Dr. Markiewicz is also affiliated with Northwest Health - La Porte. The medical group on file is Radiology, Inc. Dmand AI also links Dr. Markiewicz to 4 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Northwest Health - La PortePrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jack David Markiewicz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markiewicz practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwest Health - La Porte | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jack David Markiewicz is one of 663 diagnostic radiologists in Indiana
Diagnostic radiology is Dr. Markiewicz's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Markiewicz is licensed in Indiana.
Specialties and state licenses
- Diagnostic radiology, IndianaPrimary
Diagnostic radiologists near Dr. Markiewicz
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
663diagnostic radiologists in Indiana
7diagnostic radiologists in La Porte
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jack David Markiewicz billed Medicare for 4,247 services in 2024
CMS data shows 4,247 Medicare services from Dr. Markiewicz across 59 procedure codes in 2024, for 2,895 Medicare patients. Medicare paid $95,752 for them.
Medicare services, 20244,247
Medicare patients2,895
Paid by Medicare$95,752
Procedure codes59
Dr. Markiewicz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 4,7272024: 4,06614%
- Tests and treatments
- 2023: 1942024: 11939%
- Other services
- 2023: 762024: 6218%
Where Dr. Markiewicz's Medicare services took place, 2024
- In an office51812%
- In a facility3,72988%
Dr. Markiewicz compared with the Indiana median for diagnostic radiologists, 2024
- Dr. Markiewicz
- Indiana median
- Medicare services
- 4,247vs 2,39278% above
- Medicare patients
- 2,895vs 1,71169% above
Medians across 639 diagnostic radiologists in Indiana with Dmand AI profiles that report each measure.
Dr. Markiewicz'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Markiewicz and other diagnostic radiologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jack David Markiewicz treated 2,895 Medicare patients in 2024, average age 73
CMS counts 2,895 Medicare patients who saw Dr. Markiewicz in 2024. The largest group is 65 to 74, with 1,337 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Markiewicz's median patient age at 70, with 62% women.
Medicare patients, 20242,895
Average age73
Average risk score1.40
Also on Medicaid16%
Dr. Markiewicz's Medicare patients by age, 2024
Dr. Markiewicz's Medicare patients by sex, 2024
- Women1,84564%
- Men1,05036%
Chronic conditions among Dr. Markiewicz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease37%
- Diabetes33%
- Mood disorders29%
- Anxiety28%
- Chronic kidney disease28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Markiewicz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Jack David Markiewicz takes part in Medicare
Dr. Markiewicz 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)
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Dr. Jack David Markiewicz has worked on 10 clinical trials
Dmand AI links Dr. Markiewicz to 10 clinical trials, 4 of them phase 2 studies. 9 are still active or recruiting. Conditions studied include Adenocarcinoma of Lung, Biliary Atresia and Low Back Pain.
Clinical trials with Dr. Markiewicz by phase
- NonePhase 1: no trials
- 4Phase 2: 4 trials
- 1Phase 2/3: 1 trial
- NonePhase 3: no trials
- NonePhase 4: no trials
Trials with no phase (devices, behavioral studies) are left out.
Conditions in Dr. Markiewicz's trials
- Adenocarcinoma of Lung
- Biliary Atresia
- Low Back Pain
- Malocclusion
- Muscular Atrophy
Investigators on the most trials with Dr. Markiewicz
- Kader Tawfiq Abdelerahman, MD10 shared trials
- Randa Abdelmasih, MD10 shared trials
- Marjorie E. Affel, MD10 shared trials
Recent clinical trials with Dr. Markiewicz
Adenocarcinoma of LungAdenocarcinoma
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jack David Markiewicz received $27 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Markiewicz from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $27.
Companies that paid Dr. Markiewicz the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jack David Markiewicz'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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Jack David Markiewicz
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. Jack David Markiewicz's NPI number?
Dr. Jack David Markiewicz's NPI number is 1003066325. It was assigned on September 23, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Jack David Markiewicz?
Dr. Jack David Markiewicz is a diagnostic radiologist in La Porte, Indiana. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Jack David Markiewicz practice?
Dr. Markiewicz practices at 1331 State Street, La Porte, IN 46350. Dr. Markiewicz's primary practice is Northwest Health - La Porte in La Porte, Indiana. Dmand AI also links Dr. Markiewicz to 4 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Jack David Markiewicz's office phone number?
The practice phone on file for Dr. Markiewicz is (219) 326-2444.
What is Dr. Jack David Markiewicz's medical license number?
Dr. Markiewicz holds Indiana license 01072267A.
Which hospitals is Dr. Jack David Markiewicz affiliated with?
Dr. Markiewicz is affiliated with Northwest Health - La Porte. Dmand AI links Dr. Markiewicz to 4 more hospitals.
What medical group is Dr. Jack David Markiewicz part of?
Dr. Markiewicz is linked to Radiology, Inc. Dmand AI links Dr. Markiewicz to 1 more medical group.
Does Dr. Jack David Markiewicz accept Medicare?
Yes. CMS data shows Dr. Markiewicz billed Medicare for 4,247 services in 2024, and Dr. Markiewicz accepts Medicare assignment.
How many Medicare patients does Dr. Jack David Markiewicz see?
CMS counts 2,895 Medicare patients who saw Dr. Markiewicz in 2024, with an average age of 73.
What services does Dr. Jack David Markiewicz bill to Medicare?
In 2024, Dr. Markiewicz's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (71046) and diagnostic imaging (70450).
Show 3 more questionsShow fewer questions
Has Dr. Jack David Markiewicz received payments from drug or device companies?
CMS Open Payments shows $27 in general payments to Dr. Markiewicz from 1 company from 2017 to 2017. The largest total came from Amgen Inc.
How long has Dr. Jack David Markiewicz been practicing?
Dr. Markiewicz graduated from medical school in 2008, 18 years ago.
Does Dr. Jack David Markiewicz do research?
Dr. Markiewicz has worked on 10 clinical trials.
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