Jack S. Harweger, AGACNP-BC
- Medicare services, 2024
- 746
- Medicare patients, 2024
- 226
- Part D claims, 2024
- 3,642
- MIPS score, 2024
- 87
- Hospital affiliations
- 2
- Practice address
- 421 W Exchange St, Freeport, IL 61032
- Practice phone
- Call (815) 599-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fhn
Freeport, Illinois
Find Jack Harweger'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.
Jack S. Harweger is a cardiologist in Freeport, Illinois
Jack Harweger practices at Fhn in Freeport, Illinois.
Jack Harweger's NPI, 1396170205, was assigned on September 10, 2013. Jack Harweger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2013. Jack Harweger holds Illinois license 209-010694.
- NPI
- 1396170205NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153388087
- NPI enumeration date
- September 10, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 599-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Jack S. Harweger practices at Fhn in Freeport, Illinois
Jack Harweger's primary practice is Fhn, at 421 W Exchange St, Freeport, IL 61032 in Stephenson County. The practice phone is (815) 599-6000.
- Fhn421 W Exchange St, Freeport, IL 61032 · Stephenson CountyPhone(815) 599-6000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Jack S. Harweger is affiliated with 6 sites of care and 3 medical groups
Jack Harweger's primary practice is Fhn in Freeport, Illinois. Jack Harweger is also affiliated with Mercyhealth Hospital-Freeport. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Jack Harweger to 1 more hospital, 3 group practices and clinics and 2 medical groups, 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 Jack S. Harweger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jack Harweger practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fhn | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Jack S. Harweger is one of 908 cardiologists in Illinois
Cardiovascular disease is Jack Harweger's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Jack Harweger is licensed in Illinois.
Specialties and state licenses
- Cardiovascular disease, IllinoisPrimary
Cardiologists near Jack Harweger
Counts of cardiologists 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
Jack S. Harweger billed Medicare for 746 services in 2024
CMS data shows 746 Medicare services from Jack Harweger across 5 procedure codes in 2024, for 226 Medicare patients. Medicare paid $31,629 for them. Every service was in an office.
Jack Harweger's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4462024: 4049%
- Other services
- 2023: 02024: 216
- Tests and treatments
- 2023: 802024: 12657%
Jack Harweger compared with the Illinois median for cardiologists, 2024
- Jack Harweger
- Illinois median
- Medicare services
- 746vs 1,93661% below
- Medicare patients
- 226vs 1,02378% below
- Part D claims
- 3,418vs 1,5022.3 times
Medians across 906 cardiologists in Illinois with Dmand AI profiles that report each measure.
Jack Harweger'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 Jack Harweger and other cardiologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Jack S. Harweger treated 226 Medicare patients in 2024, average age 74
CMS counts 226 Medicare patients who saw Jack Harweger in 2024. The largest group is 65 to 74, with 103 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Jack Harweger's median patient age at 74, with 43% women.
Jack Harweger's Medicare patients by age, 2024
Jack Harweger's Medicare patients by sex, 2024
- Women11551%
- Men11149%
Chronic conditions among Jack Harweger's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Atrial fibrillation46%
- Heart failure45%
- Ischemic heart disease45%
- Diabetes39%
- Arthritis36%
- Chronic kidney disease29%
Share of Medicare patients with each condition. A patient can have several.
Jack Harweger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Jack S. Harweger wrote 3,642 Medicare Part D claims in 2024
In 2024, Jack Harweger wrote 3,642 Medicare Part D claims for 470 patients. 77% of them were for generic drugs. CMS names the drug for 3,418 of them, across 43 drugs with 11 or more claims each, at $975,129 in total drug cost. In 2023, CMS named 2,574 claims across 40 drugs.
Jack Harweger's Part D claims by kind of drug, 2024
- Generic2,800 claims77%
- Brand-name842 claims23%
Jack Harweger'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 Jack Harweger's Part D claims, 2024
- Antibiotics1%19 of 3,642 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: 2,5742024: 3,41833%
Drugs named by CMS: 43 in 2024, 40 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
Jack S. Harweger scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Jack Harweger for performance year 2024, reported as part of a group. Jack Harweger accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Jack Harweger's MIPS scores, performance year 2024
- 87of 100Final score
- 86.2of 100Quality
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Jack S. Harweger received $2,692 in industry payments from 2021 to 2025
CMS Open Payments shows 152 general payments to Jack Harweger from 23 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $653.
General payments to Jack Harweger by program year, 2021 to 2025
Companies that paid Jack Harweger the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Jack S. Harweger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Jack Harweger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Jack S. Harweger'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)Clinician Public Reporting: Overall MIPS Performance (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 Jack S. Harweger
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jack S. Harweger's NPI number?
Jack S. Harweger's NPI number is 1396170205. It was assigned on September 10, 2013, and it is active in the NPI Registry.
What does Jack S. Harweger specialize in?
Jack S. Harweger is a cardiologist in Freeport, Illinois. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Jack S. Harweger practice?
Jack Harweger practices at 421 W Exchange St, Freeport, IL 61032. Jack Harweger's primary practice is Fhn in Freeport, Illinois. Dmand AI also links Jack Harweger to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Jack S. Harweger's office phone number?
The practice phone on file for Jack Harweger is (815) 599-6000.
What is Jack S. Harweger's medical license number?
Jack Harweger holds Illinois license 209-010694.
Which hospitals is Jack S. Harweger affiliated with?
Jack Harweger is affiliated with Mercyhealth Hospital-Freeport. Dmand AI links Jack Harweger to 1 more hospital.
What medical group is Jack S. Harweger part of?
Jack Harweger is linked to OSF Multi-Specialty Group. Dmand AI links Jack Harweger to 2 more medical groups.
Does Jack S. Harweger accept Medicare?
Yes. CMS data shows Jack Harweger billed Medicare for 746 services in 2024, and Jack Harweger accepts Medicare assignment.
What is Jack S. Harweger's MIPS score?
Jack Harweger's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Jack S. Harweger see?
CMS counts 226 Medicare patients who saw Jack Harweger in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Jack S. Harweger bill to Medicare?
In 2024, Jack Harweger's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and heart test or procedure (93005).
Where did Jack S. Harweger go to medical school?
Jack Harweger graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2013.
What drugs does Jack S. Harweger prescribe most?
In 2024 Medicare Part D data, Jack Harweger's most prescribed drugs by claims were Metoprolol Succinate, Spironolactone and Atorvastatin Calcium.
Has Jack S. Harweger received payments from drug or device companies?
CMS Open Payments shows $2,692 in general payments to Jack Harweger from 23 companies from 2021 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Jack S. Harweger been practicing?
Jack Harweger graduated from medical school in 2013, 13 years ago.
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