Dr. James M. Heun, MD
- Medicare services, 2024
- 20,305
- Medicare patients, 2024
- 326
- Part D claims, 2024
- 1,478
- Publications
- 3
- Clinical trials
- 6
- Practice address
- 1400 East Side Rd, Platteville, WI 53818
- Practice phone
- Call (608) 348-2331
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Heun'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 M. Heun is a hematologist and oncologist in Platteville, Wisconsin
Dr. Heun practices at Southwest Health in Platteville, Wisconsin, part of Southwest Health Center.
Dr. Heun's NPI, 1497713697, was assigned on May 4, 2006. Dr. Heun graduated from University of Iowa, RJ & L Carver College of Medicine in 2005. Dr. Heun holds Wisconsin license 49672-20.
- NPI
- 1497713697NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597839050
- NPI enumeration date
- May 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 348-2331
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James M. Heun practices at Southwest Health in Platteville, Wisconsin
Dr. Heun's primary practice is Southwest Health, at 1400 East Side Rd, Platteville, WI 53818 in Grant County. The practice phone is (608) 348-2331.
- Southwest Health1400 East Side Rd, Platteville, WI 53818 · Grant CountyPhone(608) 348-2331
Source: Dmand AI Affiliation Data
Dr. James M. Heun is affiliated with 5 sites of care and 2 medical groups
Dr. Heun's primary practice is Southwest Health in Platteville, Wisconsin, part of Southwest Health Center. Dr. Heun is also affiliated with SSM Health St. Mary's Hospital - Madison. The medical group on file is SSM Health Dean Medical Group. Dmand AI also links Dr. Heun to 2 more hospitals, 1 rural health clinic and 1 medical group, each named with a free account. Dr. Heun's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James M. Heun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Heun practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southwest Health | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Southwest Health Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. James M. Heun is one of 277 hematologists and oncologists in Wisconsin
Hematology and oncology is Dr. Heun's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Heun is licensed in Wisconsin.
Specialties and state licenses
- Hematology and oncology, WisconsinPrimary
Hematologists and oncologists near Dr. Heun
Counts of hematologists and oncologists 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 M. Heun billed Medicare for 20,305 services in 2024
CMS data shows 20,305 Medicare services from Dr. Heun across 31 procedure codes in 2024, for 326 Medicare patients. Medicare paid $652,805 for them.
Dr. Heun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 21,7782024: 17,88718%
- Tests and treatments
- 2023: 9332024: 82911%
- Office and hospital visits
- 2023: 7582024: 66313%
- Lab and pathology
- 2023: 4082024: 54834%
- Surgery
- 2023: 2642024: 2899%
- Other services
- 2023: 02024: 89
Where Dr. Heun's Medicare services took place, 2024
- In an office20,249100%
- In a facility560%
Dr. Heun compared with the Wisconsin median for hematologists and oncologists, 2024
- Dr. Heun
- Wisconsin median
- Medicare services
- 20,305vs 54537.3 times
- Medicare patients
- 326vs 17290% above
- Part D claims
- 1,157vs 4462.6 times
Medians across 269 hematologists and oncologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Heun'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. Heun?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Heun and other hematologists and oncologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James M. Heun treated 326 Medicare patients in 2024, average age 74
CMS counts 326 Medicare patients who saw Dr. Heun in 2024. The largest group is 65 to 74, with 152 patients. 69% of them have high blood pressure, and 64% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.89, 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. Heun's median patient age at 71, with 47% women.
Dr. Heun's Medicare patients by age, 2024
Dr. Heun's Medicare patients by sex, 2024
- Women15046%
- Men17654%
Chronic conditions among Dr. Heun's Medicare patients, 2024
- High blood pressure69%
- High cholesterol64%
- Cancer59%
- Arthritis34%
- Diabetes32%
- Chronic kidney disease28%
- Ischemic heart disease22%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Heun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James M. Heun wrote 1,478 Medicare Part D claims in 2024
In 2024, Dr. Heun wrote 1,478 Medicare Part D claims for 223 patients. 84% of them were for generic drugs. CMS names the drug for 1,157 of them, across 32 drugs with 11 or more claims each, at $2,028,751 in total drug cost. In 2023, CMS named 1,123 claims across 37 drugs.
Dr. Heun's Part D claims by kind of drug, 2024
- Generic1,239 claims84%
- Brand-name239 claims16%
Dr. Heun'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. Heun's Part D claims, 2024
- Opioids5%77 of 1,478 claims
- Antibiotics3%37 of 1,478 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: 1,1232024: 1,1573%
Drugs named by CMS: 32 in 2024, 37 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 M. Heun takes part in Medicare
Dr. Heun 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. James M. Heun has 3 publications on record
Dmand AI links 3 papers to Dr. Heun, published from 2011 to 2024. Dr. Heun's most frequent co-authors are Aneel Arjun Ashrani, MBBS, Thomas D. Atwell, MD and Henny H. Billett, MD.
Dr. Heun's papers by year, 2011 to 2024
Dr. Heun's most frequent co-authors
- Aneel Arjun Ashrani, MBBS1 shared paper
- Thomas D. Atwell, MD1 shared paper
- Henny H. Billett, MD1 shared paper
Recent publications by Dr. Heun
See who Dr. Heun researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Heun works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James M. Heun has worked on 6 clinical trials
Dmand AI links Dr. Heun to 6 clinical trials, 6 of them phase 3 studies. 5 are still active or recruiting. Conditions studied include Intracranial Embolism and Thrombosis, Leukemia, Lymphocytic, Chronic, B-Cell and Lung Neoplasms. National Cancer Institute (NCI) sponsors the most, 3.
Conditions in Dr. Heun's trials
- Intracranial Embolism and Thrombosis
- Leukemia, Lymphocytic, Chronic, B-Cell
- Lung Neoplasms
- Lymphatic Metastasis
- Multiple Myeloma
Investigators on the most trials with Dr. Heun
- Praveen Vashist, MD3 shared trials
- Abdel-Ghani Azzouqa, MBBS2 shared trials
- Nafisa D. Burhani, MD2 shared trials
Recent clinical trials with Dr. Heun
Testing the Use of Combination Therapy in Adult Patients With Newly Diagnosed Multiple Myeloma, the EQUATE Trial (opens in a new tab)
Immunotherapy With Nivolumab and Ipilimumab Followed by Nivolumab or Nivolumab With Cabozantinib for Patients With Advanced Kidney Cancer, The PDIGREE Study (opens in a new tab)
Testing the Timing of Pembrolizumab Alone or With Chemotherapy as First Line Treatment and Maintenance in Non-small Cell Lung Cancer (opens in a new tab)
Testing the Addition of a New Anti-cancer Drug, Venetoclax, to the Usual Treatment (Ibrutinib and Obinutuzumab) in Untreated, Older Patients With Chronic Lymphocytic Leukemia (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. James M. Heun received $277 in industry payments from 2019 to 2025
CMS Open Payments shows 5 general payments to Dr. Heun from 4 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 88% of the total. Sirtex Medical Inc paid the most, $131.
General payments to Dr. Heun by program year, 2019 to 2025
General payments to Dr. Heun by kind, 2019 to 2025
- Food and beverage$24488%
- Education$3312%
Companies that paid Dr. Heun the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James M. Heun graduated from University of Iowa, RJ & L Carver College of Medicine
Dr. Heun graduated from University of Iowa, RJ & L Carver College of Medicine in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James M. Heun'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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 M. Heun
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 M. Heun's NPI number?
Dr. James M. Heun's NPI number is 1497713697. It was assigned on May 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James M. Heun?
Dr. James M. Heun is a hematologist and oncologist in Platteville, Wisconsin. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. James M. Heun practice?
Dr. Heun practices at 1400 East Side Rd, Platteville, WI 53818. Dr. Heun's primary practice is Southwest Health in Platteville, Wisconsin, part of Southwest Health Center. Dmand AI also links Dr. Heun to 2 hospitals, 1 rural health clinic and 1 medical group.
What is Dr. James M. Heun's office phone number?
The practice phone on file for Dr. Heun is (608) 348-2331.
What is Dr. James M. Heun's medical license number?
Dr. Heun holds Wisconsin license 49672-20.
Which hospitals is Dr. James M. Heun affiliated with?
Dr. Heun practices at Southwest Health in Platteville, Wisconsin. Dr. Heun is also affiliated with SSM Health St. Mary's Hospital - Madison. Dmand AI links Dr. Heun to 2 more hospitals.
What medical group is Dr. James M. Heun part of?
Dr. Heun is linked to SSM Health Dean Medical Group. Dmand AI links Dr. Heun to 1 more medical group.
Does Dr. James M. Heun accept Medicare?
Yes. CMS data shows Dr. Heun billed Medicare for 20,305 services in 2024, and Dr. Heun accepts Medicare assignment.
How many Medicare patients does Dr. James M. Heun see?
CMS counts 326 Medicare patients who saw Dr. Heun in 2024, with an average age of 74.
What services does Dr. James M. Heun bill to Medicare?
In 2024, Dr. Heun's most billed Medicare services were injected or infused drug (J9271), injected or infused drug (J1453) and injected or infused drug (J1100).
Show 6 more questionsShow fewer questions
Where did Dr. James M. Heun go to medical school?
Dr. Heun graduated from University of Iowa, RJ & L Carver College of Medicine in 2005.
What drugs does Dr. James M. Heun prescribe most?
In 2024 Medicare Part D data, Dr. Heun's most prescribed drugs by claims were Prednisone, Abiraterone Acetate and Omeprazole.
Has Dr. James M. Heun received payments from drug or device companies?
CMS Open Payments shows $277 in general payments to Dr. Heun from 4 companies from 2019 to 2025. The largest total came from Sirtex Medical Inc.
How long has Dr. James M. Heun been practicing?
Dr. Heun graduated from medical school in 2005, 21 years ago.
Does Dr. James M. Heun do research?
Dmand AI links 3 publications to Dr. Heun, published from 2011 to 2024. Dr. Heun has worked on 6 clinical trials.
Who does Dr. James M. Heun publish with?
Dr. Heun's most frequent co-authors are Aneel Arjun Ashrani, MBBS (1 shared paper), Thomas D. Atwell, MD (1 shared paper) and Henny H. Billett, MD (1 shared paper).
Selling to hematology and oncology practices?
See hematologists and oncologists in Wisconsin by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card