ROY W ZIMMER III MD
NPI 1780609958
Radiology - Diagnostic Radiology in Missoula, MT

Q: What is Roy Zimmer's NPI number?

The NPI number for Roy Zimmer is 1780609958. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Q: Where is Roy Zimmer located?

Roy Zimmer practices at 3205 S Russell St, Missoula, MT 59801. The listed phone number is (406) 721-4906.

Q: What is Roy Zimmer's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: Is Roy Zimmer enrolled in Medicare?

Yes. Roy Zimmer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Q: Which organizations bill Medicare for Roy Zimmer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Roy Zimmer reassigns Medicare benefits to 8 organizations: Advanced Imaging At Community Medical Center, LLC (Missoula, MT), Inland Imaging LLC (Spokane, WA), Integra Imaging, Ps (Spokane, WA), Columbia County Hospital District (Dayton, WA), Moses Lake Community Health Center (Moses Lake, WA) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Roy Zimmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Q: What insurance does Roy Zimmer accept?

Health plans from Blue Cross and Blue Shield of Montana and Premera Blue Cross Blue Shield of Alaska list Roy Zimmer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Q: Is Roy Zimmer affiliated with any hospitals?

According to CMS data, Roy Zimmer is affiliated with St. Patrick Hospital, Community Medical Center, Clark Fork Valley Hospital, Bitterroot Health - Daly Hospital and Providence St Joseph Medical Center.

Q: When was this NPI record last updated?

The NPPES record for Roy Zimmer was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 12, 2006PECOS EnrolledAccepts Medicare Assignment

3205 S RUSSELL ST, MISSOULA, MT 59801(406) 721-4906 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Roy W Zimmer Iii Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROY W ZIMMER III MD (NPI 1780609958) is an individual diagnostic radiology provider in Missoula, Montana, licensed in Montana (8077) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with St. Patrick Hospital, and is a graduate of Medical College Of Wisconsin (1989).

NPPES Registry Identity

NPI1780609958

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameROY W ZIMMER IIICredential: MD

Location Address3205 S RUSSELL STMissoula, MT 59801-8536

Mailing AddressPo Box 4165Missoula, MT 59806-4165 · (406) 721-4906

Phone(406) 721-4906

Sole ProprietorNo

Medical School CMSMedical College Of WisconsinGraduated 1989

Enumeration DateJuly 12, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1780609958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in MT · 8077

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

3205 S RUSSELL ST, Missoula, MT 59801

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Roy W Zimmer Iii Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709831662

PECOS Enrollment IDI20100809000761, I20161201002103

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Roy Zimmer reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advanced Imaging At Community Medical Center, LLC

7.2 mi

Radiology

2803 SOUTH AVE W
Missoula, MT 59804

Reassigned Medicare billing, Montana enrollment
15 clinicians in this Medicare group

NPI 1164437943 (406) 327-3950

Inland Imaging LLC

169 mi

Diagnostic Radiology

525 S COWLEY ST
Spokane, WA 99202

Reassigned Medicare billing, Montana and Washington enrollments
120 clinicians in this Medicare group

NPI 1851352348 (509) 747-4455

Integra Imaging, Ps

169 mi

Diagnostic Radiology

801 S STEVENS ST
Spokane, WA 99204

Reassigned Medicare billing, Montana and Washington enrollments
130 clinicians in this Medicare group

NPI 1174876437 (509) 747-4455

Columbia County Hospital District

192 mi

Critical Access

1012 SOUTH THIRD STREET
Dayton, WA 99328

Reassigned Medicare billing, Washington enrollment
141 clinicians in this Medicare group

NPI 1134128911 (509) 382-2531

Moses Lake Community Health Center

249 mi

Federally Qualified Health Center (FQHC)

605 S COOLIDGE ST
Moses Lake, WA 98837

Reassigned Medicare billing, Washington enrollment
134 clinicians in this Medicare group

NPI 1699862813 (509) 765-0674

Grant County Public Hospital District 2

278 mi

Emergency Medical Services

908 10TH AVE SW
Quincy, WA 98848

Reassigned Medicare billing, Washington enrollment
Medicare enrollment name: Grant County Hospital District No. 2
141 clinicians in this Medicare group

NPI 1659445468 (509) 787-3531

Inland Imaging Associates Ps

394 mi

Diagnostic Radiology

1200 12TH AVE S
Seattle, WA 98144

Reassigned Medicare billing, Montana and Washington enrollments
129 clinicians in this Medicare group

NPI 1982236469 (509) 363-7788

The Polyclinic PLLC

394 mi

Audiologist

1145 BROADWAY
Seattle, WA 98122

Reassigned Medicare billing, Washington enrollment
911 clinicians in this Medicare group

NPI 1174594634 (206) 329-1760

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 26

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

440 services440 patients

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

440 services440 patients

Screening mammography 77067

232 services232 patients

Screening 3d breast mammography 77063

220 services220 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

126 services125 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

84 services82 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.

67 services67 patients

Limited ultrasound scan of 1 breast 76642

A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.

56 services55 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

56 services56 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

53 services53 patients

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

50 services49 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

42 services42 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

39 services38 patients

Diagnostic mammography of both breasts 77066

Diagnostic mammography involves using special imaging technology to capture detailed images of both breasts. This procedure helps in identifying any unusual changes or abnormalities. It's a crucial step in ensuring breast health and early detection of potential issues.

34 services34 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

31 services31 patients

Complete ultrasound scan of 1 breast 76641

A complete ultrasound scan of one breast is a non-invasive imaging test that uses sound waves to create detailed images of the inside of your breast. It helps in detecting any abnormalities or changes, ensuring your breast health.

29 services29 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

26 services26 patients

X-ray of chest, 2 views 71046

25 services25 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

22 services22 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

22 services22 patients

Mri scan of both breasts 77049

An MRI scan of both breasts is a non-invasive procedure using magnetic fields and radio waves to create detailed images of your chest area. This aids in detecting any abnormalities, ensuring your health and well-being.

18 services18 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

17 services17 patients

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.

15 services15 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

14 services14 patients

Biopsy of breast and placement of locating device using ultrasound, first growth 19083

A breast biopsy with locating device placement involves taking a small sample from an unusual growth, using ultrasound for precise targeting. This sample is studied for any abnormal cells. A locating device is also placed to mark the area for future reference.

13 services13 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St. Patrick Hospital

Acute Care Hospitals · Missoula, MT

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number270014

Location500 W BroadwayMissoula, MT 59806 · Missoula County

Emergency services Birthing friendly

Community Medical Center

Acute Care Hospitals · Missoula, MT

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number270023

Location2827 Fort Missoula RdMissoula, MT 59804 · Missoula County

Emergency services Birthing friendly

Clark Fork Valley Hospital

Critical Access Hospitals · Plains, MT

OwnershipVoluntary non-profit - Private

CMS Certification Number271323

Location10 Kruger RdPlains, MT 59859 · Sanders County

Emergency services

Bitterroot Health - Daly Hospital

Critical Access Hospitals · Hamilton, MT

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number271340

Location1200 Westwood DrHamilton, MT 59840 · Ravalli County

Emergency services

Providence St Joseph Medical Center

Critical Access Hospitals · Polson, MT

OwnershipVoluntary non-profit - Private

CMS Certification Number271343

Location6 13th Ave EPolson, MT 59860 · Lake County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$87.97 typical visit price

range $56.81 – $172.26

Typical copayment $21.99 (range $14.20 – $43.06)

Most-billed visit code 99203

Established Patient

$70.82 typical visit price

range $18.24 – $140.32

Typical copayment $17.70 (range $4.56 – $35.08)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Appropriate Follow-up Imaging for Incidental Abdominal Lesions

Percentage of final reports for abdominal imaging studies for asymptomatic patients aged 18 years and older with one or more of the following noted incidentally with follow_up imaging recommended: - Liver lesion =< 0.5 cm - Cystic kidney lesion < 1.0 cm -…

Lower rates are better for this measure.

0%145 patients

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…

100%726 patients

Radiology: Reminder System for Screening Mammograms

Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram

100%515 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOEL A BRAKE M.D.

Radiology (Diagnostic Radiology)