Dr. Jason H. Malenfant, MD
- Medicare services, 2024
- 564
- Medicare patients, 2024
- 95
- Part D claims, 2024
- 94
- Publications
- 5
- Hospital affiliations
- 1
- Practice address
- 5666 East State Street, Rockford, IL 61108
- Practice phone
- Call (815) 226-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Malenfant's professional email, personal email and mobile number
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Dr. Jason H. Malenfant is an infectious disease specialist in Rockford, Illinois
Dr. Malenfant practices at OSF Saint Anthony Medical Center in Rockford, Illinois, part of OSF HealthCare System.
Dr. Malenfant's NPI, 1578976411, was assigned on June 9, 2014. Dr. Malenfant holds West Virginia license 30426.
- NPI
- 1578976411NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789936808
- NPI enumeration date
- June 9, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 226-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jason H. Malenfant practices at OSF Saint Anthony Medical Center in Rockford, Illinois
Dr. Malenfant's primary practice is OSF Saint Anthony Medical Center, at 5666 East State Street, Rockford, IL 61108 in Winnebago County. The practice phone is (815) 226-2000.
- OSF Saint Anthony Medical Center5666 East State Street, Rockford, IL 61108 · Winnebago CountyPhone(815) 226-2000
Source: Dmand AI Affiliation Data
Dr. Jason H. Malenfant is affiliated with 4 sites of care and 3 medical groups
Dr. Malenfant's primary practice is OSF Saint Anthony Medical Center in Rockford, Illinois, part of OSF HealthCare System. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Dr. Malenfant to 3 more group practices and clinics and 2 medical groups, 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. Jason H. Malenfant's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Malenfant practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OSF Saint Anthony Medical Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jason H. Malenfant is one of 400 infectious disease specialists in Illinois
Infectious disease is Dr. Malenfant's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Malenfant is licensed in West Virginia.
Specialties and state licenses
- Infectious disease, West VirginiaPrimary
Infectious disease specialists near Dr. Malenfant
Counts of infectious disease specialists 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. Jason H. Malenfant billed Medicare for 564 services in 2024
CMS data shows 564 Medicare services from Dr. Malenfant across 3 procedure codes in 2024, for 95 Medicare patients. Medicare paid $45,487 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Malenfant's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5472024: 5643%
Dr. Malenfant compared with the Illinois median for infectious disease specialists, 2024
- Dr. Malenfant
- Illinois median
- Medicare services
- 564vs 44028% above
- Medicare patients
- 95vs 21055% below
- Part D claims
- 14vs 19593% below
Medians across 383 infectious disease specialists in Illinois with Dmand AI profiles that report each measure.
Dr. Malenfant'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.
Need commercial claims for Dr. Malenfant?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Malenfant and other infectious disease specialists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jason H. Malenfant treated 95 Medicare patients in 2024, average age 74
CMS counts 95 Medicare patients who saw Dr. Malenfant in 2024. The largest group is 65 to 74, with 40 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 31% are also on Medicaid. Their average risk score is 3.45, 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. Malenfant's median patient age at 75, with 50% women.
Dr. Malenfant's Medicare patients by age, 2024
Dr. Malenfant's Medicare patients by sex, 2024
- Women4547%
- Men5053%
Chronic conditions among Dr. Malenfant's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis74%
- Ischemic heart disease68%
- Atrial fibrillation63%
- Chronic kidney disease62%
- Diabetes60%
- Heart failure56%
Share of Medicare patients with each condition. A patient can have several.
Dr. Malenfant's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jason H. Malenfant wrote 94 Medicare Part D claims in 2024
In 2024, Dr. Malenfant wrote 94 Medicare Part D claims for 49 patients. 95% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $2,683 in total drug cost. In 2021, CMS named 32 claims across 2 drugs.
Dr. Malenfant's Part D claims by kind of drug, 2024
- Generic89 claims95%
- Brand-name and other5 claims5%
Dr. Malenfant'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. Malenfant's Part D claims, 2024
- Antibiotics97%91 of 94 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, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 322024: 1456%
Drugs named by CMS: 1 in 2024, 2 in 2021.
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. Jason H. Malenfant takes part in Medicare
Dr. Malenfant 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. Jason H. Malenfant has 5 publications on record
Dmand AI links 5 papers to Dr. Malenfant, published from 2020 to 2023. 2021 was the busiest year, with 2. Dr. Malenfant's most frequent co-authors are Rachel Hope Civen, Michelle S. Eslami, MD and Mohammad Fahad Faisal, DO.
Dr. Malenfant's papers by year, 2020 to 2023
Dr. Malenfant's most frequent co-authors
- Rachel Hope Civen1 shared paper
- Michelle S. Eslami, MD1 shared paper
- Mohammad Fahad Faisal, DO1 shared paper
Recent publications by Dr. Malenfant
MMWR Morb Mortal Wkly Rep
See who Dr. Malenfant researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Malenfant works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jason H. Malenfant received $180 in industry payments from 2018 to 2024
CMS Open Payments shows 4 general payments to Dr. Malenfant from 2 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $113.
General payments to Dr. Malenfant by program year, 2018 to 2024
Companies that paid Dr. Malenfant the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jason H. Malenfant'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) |
| Publications, topics and co-authors | PubMed (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. Jason H. Malenfant
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. Jason H. Malenfant's NPI number?
Dr. Jason H. Malenfant's NPI number is 1578976411. It was assigned on June 9, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Jason H. Malenfant?
Dr. Jason H. Malenfant is an infectious disease specialist in Rockford, Illinois. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Jason H. Malenfant practice?
Dr. Malenfant practices at 5666 East State Street, Rockford, IL 61108. Dr. Malenfant's primary practice is OSF Saint Anthony Medical Center in Rockford, Illinois, part of OSF HealthCare System. Dmand AI also links Dr. Malenfant to 3 group practices and clinics and 2 medical groups.
What is Dr. Jason H. Malenfant's office phone number?
The practice phone on file for Dr. Malenfant is (815) 226-2000.
What is Dr. Jason H. Malenfant's medical license number?
Dr. Malenfant holds West Virginia license 30426.
Which hospitals is Dr. Jason H. Malenfant affiliated with?
Dr. Malenfant practices at OSF Saint Anthony Medical Center in Rockford, Illinois.
What medical group is Dr. Jason H. Malenfant part of?
Dr. Malenfant is linked to OSF Multi-Specialty Group. Dmand AI links Dr. Malenfant to 2 more medical groups.
Does Dr. Jason H. Malenfant accept Medicare?
Yes. CMS data shows Dr. Malenfant billed Medicare for 564 services in 2024, and Dr. Malenfant accepts Medicare assignment.
How many Medicare patients does Dr. Jason H. Malenfant see?
CMS counts 95 Medicare patients who saw Dr. Malenfant in 2024, with an average age of 74.
What services does Dr. Jason H. Malenfant bill to Medicare?
In 2024, Dr. Malenfant's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).
Show 5 more questionsShow fewer questions
What drugs does Dr. Jason H. Malenfant prescribe most?
In 2024 Medicare Part D data, Dr. Malenfant's most prescribed drugs by claims were Linezolid.
Has Dr. Jason H. Malenfant received payments from drug or device companies?
CMS Open Payments shows $180 in general payments to Dr. Malenfant from 2 companies from 2018 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Jason H. Malenfant been practicing?
Dr. Malenfant graduated from medical school in 2014, 12 years ago.
Does Dr. Jason H. Malenfant do research?
Dmand AI links 5 publications to Dr. Malenfant, published from 2020 to 2023.
Who does Dr. Jason H. Malenfant publish with?
Dr. Malenfant's most frequent co-authors are Rachel Hope Civen (1 shared paper), Michelle S. Eslami, MD (1 shared paper) and Mohammad Fahad Faisal, DO (1 shared paper).
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