Acute Coronary SyndromeMyocardial IschemiaDES
Dr. Donald Robert Westerhausen III, MD
NPI1437491974PAC ID4688977515
- Medicare services, 2024
- 702
- Medicare patients, 2024
- 270
- Part D claims, 2024
- 798
- Clinical trials
- 2
- Hospital affiliations
- 3
- Practice address
- 5215 Holy Cross Pkwy, Mishawaka, IN 46545
- Practice phone
- Call (574) 335-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Westerhausen's professional email, personal email and mobile number
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Dr. Donald Robert Westerhausen III is a pulmonologist in Mishawaka, Indiana
Dr. Westerhausen practices at Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana, part of Trinity Health.
Dr. Westerhausen's NPI, 1437491974, was assigned on March 22, 2013. Dr. Westerhausen graduated from Indiana University School of Medicine in 2013. Dr. Westerhausen holds Indiana license 01076759A.
NPI and contact details
- NPI
- 1437491974NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688977515
- NPI enumeration date
- March 22, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (574) 335-5000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Donald Robert Westerhausen III practices at Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana
Dr. Westerhausen's primary practice is Saint Joseph Mishawaka Medical Center, at 5215 Holy Cross Pkwy, Mishawaka, IN 46545 in St. Joseph County. The practice phone is (574) 335-5000.
- Saint Joseph Mishawaka Medical Center5215 Holy Cross Pkwy, Mishawaka, IN 46545 · St. Joseph CountyPhone(574) 335-5000
Source: Dmand AI Affiliation Data
Dr. Donald Robert Westerhausen III is affiliated with 6 sites of care and 6 medical groups
Dr. Westerhausen's primary practice is Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana, part of Trinity Health. Dr. Westerhausen is also affiliated with Memorial Hospital of South Bend. The medical group on file is Saint Joseph Medical Group. Dmand AI also links Dr. Westerhausen to 1 more hospital, 5 medical groups, 2 group practices and clinics and 1 therapy and rehab clinic, each named with a free account.
Memorial Hospital of South BendSaint Joseph Medical Group1 hospitalName with a free account5 medical groupsNames with a free account2 group practices and clinicsNames with a free account1 therapy and rehab clinicName with a free account
See all 12 affiliations for Dr. WesterhausenSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Donald Robert Westerhausen III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Westerhausen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Joseph Mishawaka Medical Center | Available with a free account |
| +5 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Donald Robert Westerhausen III is one of 242 pulmonologists in Indiana
Pulmonary disease is Dr. Westerhausen's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dmand AI has Dr. Westerhausen's licenses on file in 2 states: Indiana and Illinois.
Specialties and state licenses
- Pulmonary disease, IndianaPrimary
- Illinois license
Pulmonologists near Dr. Westerhausen
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
242pulmonologists in Indiana
3pulmonologists in Mishawaka
3pulmonologists at Saint Joseph Mishawaka Medical CenterSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Donald Robert Westerhausen III billed Medicare for 702 services in 2024
CMS data shows 702 Medicare services from Dr. Westerhausen across 12 procedure codes in 2024, for 270 Medicare patients. Medicare paid $39,854 for them.
Medicare services, 2024702
Medicare patients270
Paid by Medicare$39,854
Procedure codes12
Dr. Westerhausen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2572024: 43670%
- Tests and treatments
- 2023: 832024: 226172%
- Other services
- 2023: 02024: 40
Where Dr. Westerhausen's Medicare services took place, 2024
- In an office45465%
- In a facility24835%
Dr. Westerhausen compared with the Indiana median for pulmonologists, 2024
- Dr. Westerhausen
- Indiana median
- Medicare services
- 702vs 7466% below
- Medicare patients
- 270vs 35424% below
- Part D claims
- 672vs 83720% below
Medians across 247 pulmonologists in Indiana with Dmand AI profiles that report each measure.
Dr. Westerhausen'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. Westerhausen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Westerhausen and other pulmonologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Donald Robert Westerhausen III treated 270 Medicare patients in 2024, average age 73
CMS counts 270 Medicare patients who saw Dr. Westerhausen in 2024. The largest group is 65 to 74, with 125 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.74, 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. Westerhausen's median patient age at 73, with 53% women.
Medicare patients, 2024270
Average age73
Average risk score1.74
Also on Medicaid18%
Dr. Westerhausen's Medicare patients by age, 2024
Dr. Westerhausen's Medicare patients by sex, 2024
- Women15156%
- Men11944%
Chronic conditions among Dr. Westerhausen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- COPD55%
- Arthritis44%
- Diabetes38%
- Heart failure36%
- Chronic kidney disease33%
- Ischemic heart disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Westerhausen'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
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Donald Robert Westerhausen III wrote 798 Medicare Part D claims in 2024
In 2024, Dr. Westerhausen wrote 798 Medicare Part D claims for 164 patients. 40% of them were for generic drugs. CMS names the drug for 672 of them, across 19 drugs with 11 or more claims each, at $414,975 in total drug cost. In 2023, CMS named 218 claims across 8 drugs.
Part D claims, 2024798
Drugs named by CMS19
Total drug cost$414,975
Part D patients164
Dr. Westerhausen's Part D claims by kind of drug, 2024
- Generic323 claims40%
- Brand-name475 claims60%
Dr. Westerhausen'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. Westerhausen's Part D claims, 2024
- Antibiotics5%40 of 798 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: 2182024: 672208%
Drugs named by CMS: 19 in 2024, 8 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. Donald Robert Westerhausen III takes part in Medicare
Dr. Westerhausen 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. Donald Robert Westerhausen III has worked on 2 clinical trials
Dmand AI links Dr. Westerhausen to 2 clinical trials. Conditions studied include Acute Coronary Syndrome, Coronary Restenosis and Coronary Stenosis.
Conditions in Dr. Westerhausen's trials
- Acute Coronary Syndrome
- Coronary Restenosis
- Coronary Stenosis
- Myocardial Ischemia
Investigators on the most trials with Dr. Westerhausen
- Amr E. Abbas, MD2 shared trials
- Wayne B. Batchelor, MD2 shared trials
- Barry Dean Bertolet, MD2 shared trials
Recent clinical trials with Dr. Westerhausen
Coronary RestenosisCoronary StenosisAbsorb BVSXIENCE
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Donald Robert Westerhausen III received $11,437 in industry payments from 2018 to 2025
CMS Open Payments shows 215 general payments to Dr. Westerhausen from 31 drug and device companies from 2018 to 2025. Education make up the largest share, 48% of the total. Intuitive Surgical, Inc. paid the most, $7,149.
General payments to Dr. Westerhausen by program year, 2018 to 2025
General payments to Dr. Westerhausen by kind, 2018 to 2025
$11.4Kin total
- Education$5,50048%
- Food and beverage$4,43939%
- Travel and lodging$1,49813%
Companies that paid Dr. Westerhausen 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. Donald Robert Westerhausen III graduated from Indiana University School of Medicine
Dr. Westerhausen graduated from Indiana University School of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Donald Robert Westerhausen III'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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Donald Robert Westerhausen III
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. Donald Robert Westerhausen III's NPI number?
Dr. Donald Robert Westerhausen III's NPI number is 1437491974. It was assigned on March 22, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Donald Robert Westerhausen III?
Dr. Donald Robert Westerhausen III is a pulmonologist in Mishawaka, Indiana. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Donald Robert Westerhausen III practice?
Dr. Westerhausen practices at 5215 Holy Cross Pkwy, Mishawaka, IN 46545. Dr. Westerhausen's primary practice is Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana, part of Trinity Health. Dmand AI also links Dr. Westerhausen to 1 hospital, 5 medical groups, 2 group practices and clinics and 1 therapy and rehab clinic.
What is Dr. Donald Robert Westerhausen III's office phone number?
The practice phone on file for Dr. Westerhausen is (574) 335-5000.
What is Dr. Donald Robert Westerhausen III's medical license number?
Dr. Westerhausen holds Indiana license 01076759A, one of the licenses on file in 2 states.
Which states has Dr. Donald Robert Westerhausen III been licensed in?
Dmand AI has state licenses on file for Dr. Westerhausen in Indiana and Illinois.
Which hospitals is Dr. Donald Robert Westerhausen III affiliated with?
Dr. Westerhausen practices at Saint Joseph Mishawaka Medical Center in Mishawaka, Indiana. Dr. Westerhausen is also affiliated with Memorial Hospital of South Bend. Dmand AI links Dr. Westerhausen to 1 more hospital.
What medical group is Dr. Donald Robert Westerhausen III part of?
Dr. Westerhausen is linked to Saint Joseph Medical Group. Dmand AI links Dr. Westerhausen to 5 more medical groups.
Does Dr. Donald Robert Westerhausen III accept Medicare?
Yes. CMS data shows Dr. Westerhausen billed Medicare for 702 services in 2024, and Dr. Westerhausen accepts Medicare assignment.
How many Medicare patients does Dr. Donald Robert Westerhausen III see?
CMS counts 270 Medicare patients who saw Dr. Westerhausen in 2024, with an average age of 73.
Show 6 more questionsShow fewer questions
What services does Dr. Donald Robert Westerhausen III bill to Medicare?
In 2024, Dr. Westerhausen's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and office visit, established patient (99213).
Where did Dr. Donald Robert Westerhausen III go to medical school?
Dr. Westerhausen graduated from Indiana University School of Medicine in 2013.
What drugs does Dr. Donald Robert Westerhausen III prescribe most?
In 2024 Medicare Part D data, Dr. Westerhausen's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Breztri Aerosphere.
Has Dr. Donald Robert Westerhausen III received payments from drug or device companies?
CMS Open Payments shows $11,437 in general payments to Dr. Westerhausen from 31 companies from 2018 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Donald Robert Westerhausen III been practicing?
Dr. Westerhausen graduated from medical school in 2013, 13 years ago.
Does Dr. Donald Robert Westerhausen III do research?
Dr. Westerhausen has worked on 2 clinical trials.
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