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Dr. Karl R. Westenfelder, MD
NPI1174502173PAC ID6305743766
- Medicare services, 2024
- 6,192
- Medicare patients, 2024
- 728
- Part D claims, 2024
- 1,120
- Publications
- 3
- Clinical trials
- 1
- Practice address
- 2875 Tina Ave, Missoula, MT 59808
- Practice phone
- Call (406) 728-3366
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Five Valleys Urology
Missoula, Montana
Find Dr. Westenfelder's professional email, personal email and mobile number
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Dr. Karl R. Westenfelder is a urologist in Missoula, Montana
Dr. Westenfelder practices at Five Valleys Urology in Missoula, Montana.
Dr. Westenfelder's NPI, 1174502173, was assigned on January 10, 2006. Dr. Westenfelder graduated from Indiana University School of Medicine in 1998. Dr. Westenfelder holds Montana license 8443.
NPI and contact details
- NPI
- 1174502173NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305743766
- NPI enumeration date
- January 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 728-3366
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karl R. Westenfelder practices at Five Valleys Urology in Missoula, Montana
Dr. Westenfelder's primary practice is Five Valleys Urology, at 2875 Tina Ave, Missoula, MT 59808 in Missoula County. The practice phone is (406) 728-3366.
- Five Valleys Urology2875 Tina Ave, Missoula, MT 59808 · Missoula CountyPhone(406) 728-3366
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karl R. Westenfelder is affiliated with 8 sites of care and 2 medical groups
Dr. Westenfelder's primary practice is Five Valleys Urology in Missoula, Montana. Dr. Westenfelder is also affiliated with Providence St. Patrick Hospital. The medical group on file is Five Valleys Urology. Dmand AI also links Dr. Westenfelder to 4 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Five Valleys UrologyPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Karl R. Westenfelder's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Westenfelder practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Five Valleys Urology | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karl R. Westenfelder is one of 47 urologists in Montana
Urology is Dr. Westenfelder's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Westenfelder is licensed in Montana.
Specialties and state licenses
- Urology, MontanaPrimary
Urologists near Dr. Westenfelder
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
47urologists in Montana
6urologists in Missoula
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Karl R. Westenfelder billed Medicare for 6,192 services in 2024
CMS data shows 6,192 Medicare services from Dr. Westenfelder across 28 procedure codes in 2024, for 728 Medicare patients. Medicare paid $293,636 for them.
Medicare services, 20246,192
Medicare patients728
Paid by Medicare$293,636
Procedure codes28
Dr. Westenfelder's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2,8092024: 3,38020%
- Office and hospital visits
- 2023: 9902024: 9078%
- Surgery
- 2023: 7762024: 8287%
- Lab and pathology
- 2023: 4292024: 4617%
- Other services
- 2023: 02024: 420
- Tests and treatments
- 2023: 1062024: 1071%
- Imaging
- 2023: 632024: 8941%
Where Dr. Westenfelder's Medicare services took place, 2024
- In an office6,13399%
- In a facility591%
Dr. Westenfelder compared with the Montana median for urologists, 2024
- Dr. Westenfelder
- Montana median
- Medicare services
- 6,192vs 9636.4 times
- Medicare patients
- 728vs 45261% above
- Part D claims
- 1,028vs 74039% above
Medians across 46 urologists in Montana with Dmand AI profiles that report each measure.
Dr. Westenfelder'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karl R. Westenfelder treated 728 Medicare patients in 2024, average age 74
CMS counts 728 Medicare patients who saw Dr. Westenfelder in 2024. The largest group is 65 to 74, with 373 patients. 66% of them have high blood pressure, and 63% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Westenfelder's median patient age at 73, with 23% women.
Medicare patients, 2024728
Average age74
Average risk score1.15
Also on Medicaid7%
Dr. Westenfelder's Medicare patients by age, 2024
Dr. Westenfelder's Medicare patients by sex, 2024
- Women13519%
- Men59381%
Chronic conditions among Dr. Westenfelder's Medicare patients, 2024
- High blood pressure66%
- High cholesterol63%
- Cancer48%
- Arthritis40%
- Ischemic heart disease23%
- Chronic kidney disease20%
- Atrial fibrillation19%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Westenfelder'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
- Women23%
- Men77%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karl R. Westenfelder wrote 1,120 Medicare Part D claims in 2024
In 2024, Dr. Westenfelder wrote 1,120 Medicare Part D claims for 293 patients. 71% of them were for generic drugs. CMS names the drug for 1,028 of them, across 16 drugs with 11 or more claims each, at $1,592,788 in total drug cost. In 2023, CMS named 517 claims across 11 drugs.
Part D claims, 20241,120
Drugs named by CMS16
Total drug cost$1.6M
Part D patients293
Dr. Westenfelder's Part D claims by kind of drug, 2024
- Generic793 claims71%
- Brand-name and other327 claims29%
Dr. Westenfelder'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. Westenfelder's Part D claims, 2024
- Opioids7%74 of 1,120 claims
- Antibiotics8%87 of 1,120 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: 5172024: 1,02899%
Drugs named by CMS: 16 in 2024, 11 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
Dr. Karl R. Westenfelder scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Westenfelder for performance year 2024, reported as part of a group. Dr. Westenfelder accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 23 procedures of prostate resection by Dr. Westenfelder, more than 85% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Westenfelder's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Westenfelder ranks in Medicare procedure volume
- Prostate resection
- 85th percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Karl R. Westenfelder has 3 publications on record
Dmand AI links 3 papers to Dr. Westenfelder, published from 2018 to 2021. Dr. Westenfelder's most frequent co-authors are Timothy J. Bradford, MD, Andrew F. Trainer, MD and Richard D. David, MD.
Papers3
Years published2018 to 2021
Dr. Westenfelder's papers by year, 2018 to 2021
Dr. Westenfelder's most frequent co-authors
- Timothy J. Bradford, MD3 shared papers
- Andrew F. Trainer, MD3 shared papers
- Richard D. David, MD2 shared papers
Recent publications by Dr. Westenfelder
See who Dr. Westenfelder researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Westenfelder works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Karl R. Westenfelder has worked on 1 clinical trial
Dmand AI links Dr. Westenfelder to 1 clinical trial. Conditions studied include Urinary Bladder Neoplasms and Urinary Bladder Diseases.
Conditions in Dr. Westenfelder's trials
- Urinary Bladder Neoplasms
- Urinary Bladder Diseases
Investigators on the most trials with Dr. Westenfelder
- Timothy J. Bradford, MD1 shared trial
- Barrett E. Cowan, MD1 shared trial
- Joseph Chihping Liao, MD1 shared trial
Recent clinical trials with Dr. Westenfelder
Clinical Evaluation of a Test for Monitoring the Recurrence of Bladder Cancer (opens in a new tab)
Completed
Urinary Bladder NeoplasmsUrinary Bladder DiseasesXpert Bladder Cancer Monitor
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Karl R. Westenfelder received $6,122 in industry payments from 2016 to 2025
CMS Open Payments shows 209 general payments to Dr. Westenfelder from 36 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 76% of the total. Coloplast Corp paid the most, $1,711. It also lists 4 research payments totaling $35,080 in 2017.
General payments to Dr. Westenfelder by program year, 2016 to 2025
General payments to Dr. Westenfelder by kind, 2016 to 2025
$6.1Kin total
- Food and beverage$4,65776%
- Travel and lodging$1,45224%
- Education$130%
Companies that paid Dr. Westenfelder the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karl R. Westenfelder graduated from Indiana University School of Medicine
Dr. Westenfelder graduated from Indiana University School of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karl R. Westenfelder's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Karl R. Westenfelder
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. Karl R. Westenfelder's NPI number?
Dr. Karl R. Westenfelder's NPI number is 1174502173. It was assigned on January 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karl R. Westenfelder?
Dr. Karl R. Westenfelder is a urologist in Missoula, Montana. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Karl R. Westenfelder practice?
Dr. Westenfelder practices at 2875 Tina Ave, Missoula, MT 59808. Dr. Westenfelder's primary practice is Five Valleys Urology in Missoula, Montana. Dmand AI also links Dr. Westenfelder to 4 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Karl R. Westenfelder's office phone number?
The practice phone on file for Dr. Westenfelder is (406) 728-3366.
What is Dr. Karl R. Westenfelder's medical license number?
Dr. Westenfelder holds Montana license 8443.
Which hospitals is Dr. Karl R. Westenfelder affiliated with?
Dr. Westenfelder is affiliated with Providence St. Patrick Hospital. Dmand AI links Dr. Westenfelder to 4 more hospitals.
What medical group is Dr. Karl R. Westenfelder part of?
Dr. Westenfelder is linked to Five Valleys Urology. Dmand AI links Dr. Westenfelder to 1 more medical group.
Does Dr. Karl R. Westenfelder accept Medicare?
Yes. CMS data shows Dr. Westenfelder billed Medicare for 6,192 services in 2024, and Dr. Westenfelder accepts Medicare assignment.
What is Dr. Karl R. Westenfelder's MIPS score?
Dr. Westenfelder's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Karl R. Westenfelder see?
CMS counts 728 Medicare patients who saw Dr. Westenfelder in 2024, with an average age of 74.
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What services does Dr. Karl R. Westenfelder bill to Medicare?
In 2024, Dr. Westenfelder's most billed Medicare services were injected or infused drug (J0897), medicare service (G2211) and injected or infused drug (J9217).
Where did Dr. Karl R. Westenfelder go to medical school?
Dr. Westenfelder graduated from Indiana University School of Medicine in 1998.
What drugs does Dr. Karl R. Westenfelder prescribe most?
In 2024 Medicare Part D data, Dr. Westenfelder's most prescribed drugs by claims were Finasteride, Orgovyx and Tamsulosin HCl.
Has Dr. Karl R. Westenfelder received payments from drug or device companies?
CMS Open Payments shows $6,122 in general payments to Dr. Westenfelder from 36 companies from 2016 to 2025. The largest total came from Coloplast Corp.
How long has Dr. Karl R. Westenfelder been practicing?
Dr. Westenfelder graduated from medical school in 1998, 28 years ago.
Does Dr. Karl R. Westenfelder do research?
Dmand AI links 3 publications to Dr. Westenfelder, published from 2018 to 2021. Dr. Westenfelder has worked on 1 clinical trial.
Who does Dr. Karl R. Westenfelder publish with?
Dr. Westenfelder's most frequent co-authors are Timothy J. Bradford, MD (3 shared papers), Andrew F. Trainer, MD (3 shared papers) and Richard D. David, MD (2 shared papers).
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