Quick answers
- Does Marnie J. Dichiaro accept Medicare assignment?
- Yes. Medicare's clinician data says Marnie J. Dichiaro accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Marnie J. Dichiaro see?
- In 2024, CMS data shows 253 Original Medicare patients and 1,012 services for Marnie J. Dichiaro. This counts Original Medicare only and measures volume, not quality.
- What is Marnie J. Dichiaro's NPI number?
- 1811497076. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Marnie J. Dichiaro, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 253 |
|---|---|
| Services billed to Medicare | 1,012 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)224 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)197 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)113 services
- Insertion of needle into vein for collection of blood sample (36415)90 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)47 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure57%
- High cholesterol51%
- Arthritis44%
- Depression34%
- Anxiety31%
- Diabetes21%
Hospitals where Marnie J. Dichiaro works
Medicare's Facility Affiliation Data lists Marnie J. Dichiaro at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bitterroot Health - Daly HospitalHamilton, MT · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 271340
- Community Medical CenterMissoula, MT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 270023
- St. Patrick HospitalMissoula, MT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 270014
Practice locations
Addresses where Marnie J. Dichiaro is enrolled with Medicare (CMS data updated October 2, 2026).
- 323 E Front StMissoula, MT 59802 (406) 531‑9650
- 4720 23rd AveMissoula, MT 59803 (406) 251‑5100
- 500 W Broadway StMissoula, MT 59802 (406) 329‑5828
Group practices
Medicare enrollment lists Marnie J. Dichiaro as a member of these groups (CMS data updated October 2, 2026).
- Providence Health and Services Mt362 clinicians in the group
- Mountain Internal Medicine, PLLC2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Missoula
Clinicians with the same Medicare primary specialty in Missoula, MT — not a recommendation.
Other clinicians in Providence Health and Services Mt
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1811497076 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians