Dr. Roy W. Zimmer III, MD
- Medicare services, 2024
- 2,182
- Medicare patients, 2024
- 1,405
- Hospital affiliations
- 5
- Medical groups
- 8
- State license
- 1
- Practice address
- 2827 Fort Missoula Rd, Missoula, MT 59804
- Practice phone
- Call (406) 728-4100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Zimmer's professional email, personal email and mobile number
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Dr. Roy W. Zimmer III is a diagnostic radiologist in Missoula, Montana
Dr. Zimmer practices at Community Medical Center in Missoula, Montana, part of Lifepoint Health.
Dr. Zimmer's NPI, 1780609958, was assigned on July 12, 2006. Dr. Zimmer graduated from Medical College of Wisconsin in 1989. Dr. Zimmer holds Montana license 8077.
- NPI
- 1780609958NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709831662
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 728-4100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Roy W. Zimmer III practices at Community Medical Center in Missoula, Montana
Dr. Zimmer's primary practice is Community Medical Center, at 2827 Fort Missoula Rd, Missoula, MT 59804 in Missoula County. The practice phone is (406) 728-4100.
- Community Medical Center2827 Fort Missoula Rd, Missoula, MT 59804 · Missoula CountyPhone(406) 728-4100
Source: Dmand AI Affiliation Data
Dr. Roy W. Zimmer III is affiliated with 11 sites of care and 8 medical groups
Dr. Zimmer's primary practice is Community Medical Center in Missoula, Montana, part of Lifepoint Health. Dr. Zimmer is also affiliated with Providence St. Patrick Hospital. The medical group on file is The Polyclinic. Dmand AI also links Dr. Zimmer to 3 more hospitals, 7 medical groups and 6 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Roy W. Zimmer III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zimmer practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Medical Center | Available with a free account |
| +10 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Roy W. Zimmer III is one of 115 diagnostic radiologists in Montana
Diagnostic radiology is Dr. Zimmer's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Zimmer is licensed in Montana.
Specialties and state licenses
- Diagnostic radiology, MontanaPrimary
Diagnostic radiologists near Dr. Zimmer
Counts of diagnostic radiologists 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. Roy W. Zimmer III billed Medicare for 2,182 services in 2024
CMS data shows 2,182 Medicare services from Dr. Zimmer across 23 procedure codes in 2024, for 1,405 Medicare patients. Medicare paid $87,718 for them.
Dr. Zimmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,3372024: 2,10210%
- Other services
- 2023: 632024: 676%
- Surgery
- 2023: 122024: 138%
Where Dr. Zimmer's Medicare services took place, 2024
- In an office47722%
- In a facility1,70578%
Dr. Zimmer compared with the Montana median for diagnostic radiologists, 2024
- Dr. Zimmer
- Montana median
- Medicare services
- 2,182vs 2,78922% below
- Medicare patients
- 1,405vs 2,29339% below
Medians across 123 diagnostic radiologists in Montana with Dmand AI profiles that report each measure.
Dr. Zimmer'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 Dr. Zimmer and other diagnostic radiologists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Roy W. Zimmer III treated 1,405 Medicare patients in 2024, average age 73
CMS counts 1,405 Medicare patients who saw Dr. Zimmer in 2024. The largest group is 65 to 74, with 819 patients. 58% of them have high blood pressure, and 58% have high cholesterol. 9% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zimmer's median patient age at 60, with 84% women.
Dr. Zimmer's Medicare patients by age, 2024
Dr. Zimmer's Medicare patients by sex, 2024
- Women1,14081%
- Men26519%
Chronic conditions among Dr. Zimmer's Medicare patients, 2024
- High blood pressure58%
- High cholesterol58%
- Arthritis41%
- Mood disorders25%
- Anxiety23%
- Depression22%
- Osteoporosis21%
- Cancer20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zimmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women84%
- Men16%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Roy W. Zimmer III takes part in Medicare
Dr. Zimmer 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. Roy W. Zimmer III graduated from Medical College of Wisconsin
Dr. Zimmer graduated from Medical College of Wisconsin in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Roy W. Zimmer 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Roy W. Zimmer 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. Roy W. Zimmer III's NPI number?
Dr. Roy W. Zimmer III's NPI number is 1780609958. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Roy W. Zimmer III?
Dr. Roy W. Zimmer III is a diagnostic radiologist in Missoula, Montana. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Roy W. Zimmer III practice?
Dr. Zimmer practices at 2827 Fort Missoula Rd, Missoula, MT 59804. Dr. Zimmer's primary practice is Community Medical Center in Missoula, Montana, part of Lifepoint Health. Dmand AI also links Dr. Zimmer to 3 hospitals, 7 medical groups and 6 group practices and clinics.
What is Dr. Roy W. Zimmer III's office phone number?
The practice phone on file for Dr. Zimmer is (406) 728-4100.
What is Dr. Roy W. Zimmer III's medical license number?
Dr. Zimmer holds Montana license 8077.
Which hospitals is Dr. Roy W. Zimmer III affiliated with?
Dr. Zimmer practices at Community Medical Center in Missoula, Montana. Dr. Zimmer is also affiliated with Providence St. Patrick Hospital. Dmand AI links Dr. Zimmer to 3 more hospitals.
What medical group is Dr. Roy W. Zimmer III part of?
Dr. Zimmer is linked to The Polyclinic. Dmand AI links Dr. Zimmer to 7 more medical groups.
Does Dr. Roy W. Zimmer III accept Medicare?
Yes. CMS data shows Dr. Zimmer billed Medicare for 2,182 services in 2024, and Dr. Zimmer accepts Medicare assignment.
How many Medicare patients does Dr. Roy W. Zimmer III see?
CMS counts 1,405 Medicare patients who saw Dr. Zimmer in 2024, with an average age of 73.
What services does Dr. Roy W. Zimmer III bill to Medicare?
In 2024, Dr. Zimmer's most billed Medicare services were radiation oncology (77067), radiation oncology (77063) and diagnostic imaging (71046).
Where did Dr. Roy W. Zimmer III go to medical school?
Dr. Zimmer graduated from Medical College of Wisconsin in 1989.
How long has Dr. Roy W. Zimmer III been practicing?
Dr. Zimmer graduated from medical school in 1989, 37 years ago.
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