Louis L. Westenfelder, PA-C

  • Missoula, MT
  • Physician assistant
NPI1518917418PAC ID1658382791
Medicare patients, 2024
337
Part D claims, 2024
101
Affiliated sites
1
Medical group
1
State license
1
Practice address
2360 Mullan Rd Ste B, Missoula, MT 59808
Practice phone
Call (406) 542-9695
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Missoula Bone & Joint Surgery Center

Surgery Center - Medicare-Certified · Missoula, Montana

See all 2 affiliations

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Louis L. Westenfelder is a physician assistant in Missoula, Montana

Louis Westenfelder practices at Missoula Bone & Joint Surgery Center in Missoula, Montana.

Louis Westenfelder's NPI, 1518917418, was assigned on May 11, 2006. Louis Westenfelder holds Montana license 457.

NPI and contact details
Medicare PAC ID
1658382791
NPI enumeration date
May 11, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(406) 542-9695
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
48
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Louis L. Westenfelder practices at Missoula Bone & Joint Surgery Center in Missoula, Montana

Louis Westenfelder's primary practice is Missoula Bone & Joint Surgery Center, at 2360 Mullan Rd Ste B, Missoula, MT 59808. The practice phone is (406) 542-9695.

  • Missoula Bone & Joint Surgery Center
    2360 Mullan Rd Ste B, Missoula, MT 59808Phone(406) 542-9695

Source: Dmand AI Affiliation Data

Louis L. Westenfelder is affiliated with 1 site of care and 1 medical group

Louis Westenfelder's primary practice is Missoula Bone & Joint Surgery Center in Missoula, Montana. The medical group on file is Missoula Bone & Joint. Louis Westenfelder's employer is on file too: a surgery center (asc).

See all 2 affiliations for Louis Westenfelder

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Louis L. Westenfelder's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Louis Westenfelder practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Missoula Bone & Joint Surgery CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Louis L. Westenfelder is one of 656 physician assistants in Montana

Physician assistant is Louis Westenfelder's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Louis Westenfelder is licensed in Montana.

Specialties and state licenses

  • Physician assistant, MontanaPrimaryLicense 457 · taxonomy 363A00000X

Physician assistants near Louis Westenfelder

Counts of physician assistants 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

Louis L. Westenfelder treated 337 Medicare patients in 2024, average age 73

CMS counts 337 Medicare patients who saw Louis Westenfelder in 2024. The largest group is 65 to 74, with 188 patients. 61% of them have high cholesterol, and 60% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Louis Westenfelder's median patient age at 65, with 54% women.

Medicare patients, 2024337
Average age73
Average risk score0.91
Also on Medicaid6%

Louis Westenfelder's Medicare patients by age, 2024

Louis Westenfelder's Medicare patients by sex, 2024

  • Women19758%
  • Men14042%

Chronic conditions among Louis Westenfelder's Medicare patients, 2024

  1. High cholesterol61%
  2. High blood pressure60%
  3. Arthritis58%
  4. Mood disorders27%
  5. Depression22%
  6. Anxiety20%
  7. Diabetes19%
  8. Ischemic heart disease19%

Share of Medicare patients with each condition. A patient can have several.

Louis 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 65

Patient panel by sex, all payers

  • Women54%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Louis L. Westenfelder wrote 101 Medicare Part D claims in 2024

In 2024, Louis Westenfelder wrote 101 Medicare Part D claims for 74 patients. 100% of them were for generic drugs.

Part D claims, 2024101
Part D patients74

Drug classes CMS tracks in Louis Westenfelder's Part D claims, 2024

  • Opioids53%54 of 101 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Louis L. Westenfelder takes part in Medicare

Louis Westenfelder 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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Sources for Louis L. Westenfelder's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Louis L. 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 Louis L. Westenfelder's NPI number?

Louis L. Westenfelder's NPI number is 1518917418. It was assigned on May 11, 2006, and it is active in the NPI Registry.

What does Louis L. Westenfelder specialize in?

Louis L. Westenfelder is a physician assistant in Missoula, Montana. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Louis L. Westenfelder practice?

Louis Westenfelder practices at 2360 Mullan Rd Ste B, Missoula, MT 59808. Louis Westenfelder's primary practice is Missoula Bone & Joint Surgery Center in Missoula, Montana.

What is Louis L. Westenfelder's office phone number?

The practice phone on file for Louis Westenfelder is (406) 542-9695.

What is Louis L. Westenfelder's medical license number?

Louis Westenfelder holds Montana license 457.

What medical group is Louis L. Westenfelder part of?

Louis Westenfelder is linked to Missoula Bone & Joint.

Does Louis L. Westenfelder accept Medicare?

Yes. CMS lists Louis Westenfelder as accepting Medicare assignment.

How many Medicare patients does Louis L. Westenfelder see?

CMS counts 337 Medicare patients who saw Louis Westenfelder in 2024, with an average age of 73.

How long has Louis L. Westenfelder been practicing?

Louis Westenfelder graduated from medical school in 2004, 22 years ago.

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