Dr. Jonathan William Jansen , DO
Hospitalist โข Winfield, IL
25 N Winfield Rd
Winfield, IL 601901295
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on April 6, 2009; this date does not establish years in practice.
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Published CMS data list 47 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99223 โ Initial hospital care with moderate level of medical decision making: 47 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 22 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) โ 11 prescription fills, including refills.
- Vyvanse (Lisdexamfetamine Dimesylate) โ 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 85% of clinicians listed under Hospitalist in Winfield, IL (2024, 50 clinicians with data). Median for this group: 56. Middle half: 31 to 91.
Fewer Part D prescriptions than 85% of clinicians listed under Hospitalist in Illinois (2024, 823 clinicians with data). Median for this group: 88. Middle half: 36 to 185.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 535 in 2019 to 47 in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019โ2023.
Practice Location & Contact Primary Location
25 N Winfield Rd
Winfield, IL 601901295
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Geneva, IL; Palos Heights, IL. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Hospitalist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $8,421 in 2023
The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023.
Paid by Medicare
About $6,289 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023.
30-day fills
22 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$4,365 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $4,196.50 across 7 records.
By nature of payment
- Consulting Fee: $3,750.00 across 2 records.
- Travel and Lodging: $262.72 across 2 records.
- Food and Beverage: $183.78 across 3 records.
Reporting-company totals
- Stryker Corporation: $4,196.50 across 7 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2009
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Can order Medicare-covered services
CMS lists Dr. Jansen as eligible to order or refer durable medical equipment (DME) for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Winfield and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Hospitalist in Winfield, IL (2024, 50 clinicians with data). Median for this group: 56. Middle half: 31 to 91.
Fewer Part D prescriptions than 85% of clinicians listed under Hospitalist in Illinois (2024, 823 clinicians with data). Median for this group: 88. Middle half: 36 to 185.
Part D drug cost
A higher Part D drug cost than 65% of clinicians listed under Hospitalist in Winfield, IL (2024, 50 clinicians with data). Median for this group: $676. Middle half: $220 to $9,185.
Close to the middle for clinicians listed under Hospitalist in Illinois (2024, 823 clinicians with data). Median for this group: $1,197. Middle half: $309 to $12,454.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Jansen are from 2023.
75 active clinicians are listed under Hospitalist with a practice address in Winfield, IL (1,536 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Winfield
1.3% of these 75 clinicians have the CMS telehealth indicator.
88% of these 75 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 91% from 535 in 2019 to 47 in 2023.
- 2019: 535
- 2020: 298
- 2021: 307
- 2022: 205
- 2023: 47
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Medicare-allowed amount
Medicare-allowed amount decreased 89% from $80,119 in 2019 to $8,421 in 2023.
- 2019: $80,119
- 2020: $60,786
- 2021: $57,015
- 2022: $34,295
- 2023: $8,421
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Paid by Medicare
Paid by Medicare decreased 90% from $62,523 in 2019 to $6,289 in 2023.
- 2019: $62,523
- 2020: $47,429
- 2021: $44,173
- 2022: $26,953
- 2023: $6,289
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 37% from 35 in 2015 to 22 in 2024.
- 2015: 35
- 2016: 42
- 2017: 37
- 2018: 66
- 2024: 22
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30-day fills
30-day fills decreased 37% from 35 in 2015 to 22 in 2024.
- 2015: 35
- 2016: 42
- 2017: 37
- 2018: 72
- 2024: 22
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Part D drug cost
Part D drug cost went from $195 in 2015 to $4,365 in 2024.
- 2015: $195
- 2016: $278
- 2017: $202
- 2018: $745
- 2024: $4,365
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $4,196.50.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
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LIFEPAK 35 | General | $2,750.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
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LIFEPAK 35 | General | $1,000.00 |
| Stryker Corporation |
Travel and Lodging
Cash or cash equivalent
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LIFEPAK 35 | General | $202.72 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
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LIFEPAK 35 | General | $117.64 |
| Stryker Corporation |
Travel and Lodging
Cash or cash equivalent
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LIFEPAK 35 | General | $60.00 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
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LIFEPAK 35 | General | $39.64 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
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LIFEPAK 35 | General | $26.50 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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47 | 47 | $372.00 | $179.16 |
Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Dextroamphetamine-Amphetamine | Dextroamphetamine/Amphetamine | 11 | 330 | $324.99 | โ |
| Vyvanse | Lisdexamfetamine Dimesylate | 11 | 330 | $4,039.74 | โ |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2023-05-24NUCC Taxonomy Code: 208M00000X
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
300 Randall Rd
Geneva, IL 601344220
Phone: 6309334700
12251 S. 80th Avenue
Palos Heights, IL 60463
Phone: 7089235869
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Hospitalist
Doctor of Osteopathic Medicine (D.O.)
Hospitalist
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Hospitalist
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 25 N WINFIELD RD, WINFIELD, IL 601901295 (Tel: 6309334700)
Registered at 25 N WINFIELD RD, WINFIELD, IL 601901295 (Tel: 6309334700)
NPI status registered as active in NPPES database
Registered at 12251 S. 80TH AVENUE, PALOS HEIGHTS, IL 60463 (Tel: 7089235869)
Registered at 12251 S. 80TH AVENUE, MED STAFF OFFICE SUITE 1630, PALOS HEIGHTS, IL 60463 (Tel: 7089235173)
Recorded as JONATHAN JANSEN, DO
Internal Medicine (license number reported to NPPES: IL 036136259)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Hospitalists in Winfield
- Dr. Gail Gizzo-Waitley, MD
- Dr. Martin White, MD
- Dr. Julia Hernandez, MD
- Dr. Nicole Ahmed, MD
- Dr. Nathan Bolden, MD
- Dr. Jonathan Wang, MD
Mailing Address
12251 S. 80th Avenue, Med Staff Office Suite 1630
Palos Heights, IL 60463
Phone: 7089235173