Quick answers
- Does Mary M. Dennis accept Medicare assignment?
- Yes. Medicare's clinician data says Mary M. Dennis 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 Mary M. Dennis see?
- In 2024, CMS data shows 397 Original Medicare patients and 1,390 services for Mary M. Dennis. This counts Original Medicare only and measures volume, not quality.
- What is Mary M. Dennis's NPI number?
- 1487195194. 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 Mary M. Dennis, 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 | 397 |
|---|---|
| Services billed to Medicare | 1,390 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 84 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)944 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)171 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)102 services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)64 services
- Nursing facility discharge management, more than 30 minutes (99316)62 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 pressure75%
- High cholesterol75%
- Depression58%
- Arthritis55%
- Chronic kidney disease54%
- Anxiety51%
Hospitals where Mary M. Dennis works
Medicare's Facility Affiliation Data lists Mary M. Dennis 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.
- Mercy Medical Center-New HamptonNew Hampton, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161331
- MercyOne Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 160083
- Stewart Memorial Community HospitalLake City, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161350
- Trinity Regional Medical CenterFort Dodge, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160016
Practice locations
Addresses where Mary M. Dennis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1401 50th St, Suite 100West Des Moines, IA 50266 (515) 225‑7132
- 444 N W View DrOsceola, IA 50213 (337) 991‑9276
- 444 N W View Dr, Southern Hills Spec CareOsceola, IA 50213 (737) 226‑6700
Group practices
Medicare enrollment lists Mary M. Dennis as a member of these groups (CMS data updated October 2, 2026).
- Curana Health of Iowa PLLC151 clinicians in the group
- CH Specialty Services IA PC136 clinicians in the group
- Metro Geriatric Services39 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in West Des Moines
Clinicians with the same Medicare primary specialty in West Des Moines, IA — not a recommendation.
Other clinicians in Curana Health of Iowa PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2016 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487195194 |
| 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