Dr. James Loenard Maliszewski, MD
- Medicare services, 2024
- 6,424
- Medicare patients, 2024
- 529
- Part D claims, 2024
- 9,520
- Hospital affiliations
- 3
- Industry payments
- $326
- Practice address
- 8303 Dodge St, Omaha, NE 68114
- Practice phone
- Call (402) 354-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nebraska Methodist Hospital
Omaha, Nebraska
Find Dr. Maliszewski'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. James Loenard Maliszewski is an internist in Omaha, Nebraska
Dr. Maliszewski practices at Nebraska Methodist Hospital in Omaha, Nebraska.
Dr. Maliszewski's NPI, 1205197464, was assigned on June 5, 2012. Dr. Maliszewski graduated from University of Nebraska College of Medicine in 2012. Dr. Maliszewski holds Nebraska license 28491.
- NPI
- 1205197464NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082830385
- NPI enumeration date
- June 5, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (402) 354-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Loenard Maliszewski practices at Nebraska Methodist Hospital in Omaha, Nebraska
Dr. Maliszewski's primary practice is Nebraska Methodist Hospital, at 8303 Dodge St, Omaha, NE 68114 in Douglas County. The practice phone is (402) 354-4000.
- Nebraska Methodist Hospital8303 Dodge St, Omaha, NE 68114 · Douglas CountyPhone(402) 354-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James Loenard Maliszewski is affiliated with 9 sites of care and 1 medical group
Dr. Maliszewski's primary practice is Nebraska Methodist Hospital in Omaha, Nebraska. Dr. Maliszewski is also affiliated with Methodist Hospital. The medical group on file is Methodist Physicians Clinic. Dmand AI also links Dr. Maliszewski to 2 more hospitals, 4 home health agencies and 1 group practice or clinic, 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. James Loenard Maliszewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maliszewski practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nebraska Methodist Hospital | Available with a free account |
| +8 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Loenard Maliszewski is one of 687 internists in Nebraska
Internal medicine is Dr. Maliszewski's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Maliszewski is licensed in Nebraska.
Specialties and state licenses
- Internal medicine, NebraskaPrimary
Internists near Dr. Maliszewski
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. James Loenard Maliszewski billed Medicare for 6,424 services in 2024
CMS data shows 6,424 Medicare services from Dr. Maliszewski across 39 procedure codes in 2024, for 529 Medicare patients. Medicare paid $318,989 for them.
Dr. Maliszewski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,0992024: 1,83113%
- Drugs given in the office
- 2023: 1,2602024: 1,38010%
- Lab and pathology
- 2023: 8052024: 94517%
- Other services
- 2023: 6722024: 79919%
- Surgery
- 2023: 7582024: 7481%
- Tests and treatments
- 2023: 3612024: 54250%
- Imaging
- 2023: 1752024: 1792%
Where Dr. Maliszewski's Medicare services took place, 2024
- In an office6,00393%
- In a facility4217%
Dr. Maliszewski compared with the Nebraska median for internists, 2024
- Dr. Maliszewski
- Nebraska median
- Medicare services
- 6,424vs 61410.5 times
- Medicare patients
- 529vs 2262.3 times
- Part D claims
- 8,887vs 15457.7 times
Medians across 605 internists in Nebraska with Dmand AI profiles that report each measure.
Dr. Maliszewski'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. Maliszewski and other internists in Nebraska.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Loenard Maliszewski treated 529 Medicare patients in 2024, average age 77
CMS counts 529 Medicare patients who saw Dr. Maliszewski in 2024. The largest group is 65 to 74, with 222 patients. 71% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maliszewski's median patient age at 73, with 43% women.
Dr. Maliszewski's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Maliszewski's Medicare patients by sex, 2024
- Women24647%
- Men28353%
Chronic conditions among Dr. Maliszewski's Medicare patients, 2024
- High cholesterol71%
- High blood pressure67%
- Arthritis53%
- Mood disorders27%
- Ischemic heart disease26%
- Chronic kidney disease25%
- Depression25%
- Atrial fibrillation24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maliszewski's 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
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Loenard Maliszewski wrote 9,520 Medicare Part D claims in 2024
In 2024, Dr. Maliszewski wrote 9,520 Medicare Part D claims for 650 patients. 88% of them were for generic drugs. CMS names the drug for 8,887 of them, across 121 drugs with 11 or more claims each, at $743,147 in total drug cost. In 2023, CMS named 8,835 claims across 127 drugs.
Dr. Maliszewski's Part D claims by kind of drug, 2024
- Generic8,367 claims88%
- Brand-name1,108 claims12%
- Other45 claims0%
Dr. Maliszewski'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. Maliszewski's Part D claims, 2024
- Opioids1%106 of 9,520 claims
- Antibiotics1%107 of 9,520 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: 8,8352024: 8,8871%
Drugs named by CMS: 121 in 2024, 127 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
How Dr. James Loenard Maliszewski takes part in Medicare
Dr. Maliszewski 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. James Loenard Maliszewski received $326 in industry payments from 2018 to 2025
CMS Open Payments shows 21 general payments to Dr. Maliszewski from 13 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $75.
General payments to Dr. Maliszewski by program year, 2018 to 2025
Companies that paid Dr. Maliszewski the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Loenard Maliszewski graduated from University of Nebraska College of Medicine
Dr. Maliszewski graduated from University of Nebraska College of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James Loenard Maliszewski'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 | 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. James Loenard Maliszewski
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. James Loenard Maliszewski's NPI number?
Dr. James Loenard Maliszewski's NPI number is 1205197464. It was assigned on June 5, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. James Loenard Maliszewski?
Dr. James Loenard Maliszewski is an internist in Omaha, Nebraska. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James Loenard Maliszewski practice?
Dr. Maliszewski practices at 8303 Dodge St, Omaha, NE 68114. Dr. Maliszewski's primary practice is Nebraska Methodist Hospital in Omaha, Nebraska. Dmand AI also links Dr. Maliszewski to 2 hospitals, 4 home health agencies and 1 group practice or clinic.
What is Dr. James Loenard Maliszewski's office phone number?
The practice phone on file for Dr. Maliszewski is (402) 354-4000.
What is Dr. James Loenard Maliszewski's medical license number?
Dr. Maliszewski holds Nebraska license 28491.
Which hospitals is Dr. James Loenard Maliszewski affiliated with?
Dr. Maliszewski is affiliated with Methodist Hospital. Dmand AI links Dr. Maliszewski to 2 more hospitals.
What medical group is Dr. James Loenard Maliszewski part of?
Dr. Maliszewski is linked to Methodist Physicians Clinic.
Does Dr. James Loenard Maliszewski accept Medicare?
Yes. CMS data shows Dr. Maliszewski billed Medicare for 6,424 services in 2024, and Dr. Maliszewski accepts Medicare assignment.
How many Medicare patients does Dr. James Loenard Maliszewski see?
CMS counts 529 Medicare patients who saw Dr. Maliszewski in 2024, with an average age of 77.
What services does Dr. James Loenard Maliszewski bill to Medicare?
In 2024, Dr. Maliszewski's most billed Medicare services were injected or infused drug (J0897), office visit, established patient (99214) and surgery: heart and blood vessels (36415).
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Where did Dr. James Loenard Maliszewski go to medical school?
Dr. Maliszewski graduated from University of Nebraska College of Medicine in 2012.
What drugs does Dr. James Loenard Maliszewski prescribe most?
In 2024 Medicare Part D data, Dr. Maliszewski's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. James Loenard Maliszewski received payments from drug or device companies?
CMS Open Payments shows $326 in general payments to Dr. Maliszewski from 13 companies from 2018 to 2025. The largest total came from Pfizer Inc.
How long has Dr. James Loenard Maliszewski been practicing?
Dr. Maliszewski graduated from medical school in 2012, 14 years ago.
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