Quick answers
- Does Timothy R. Toonen accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy R. Toonen 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 Timothy R. Toonen see?
- In 2024, CMS data shows 154 Original Medicare patients and 31,464 services for Timothy R. Toonen. This counts Original Medicare only and measures volume, not quality.
- What is Timothy R. Toonen's NPI number?
- 1770552317. 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 Timothy R. Toonen, 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 | 154 |
|---|---|
| Services billed to Medicare | 31,464 |
| Different services or procedures | 113 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)234 services
- Insertion of needle into vein for collection of blood sample (36415)223 services
- Blood test, comprehensive group of blood chemicals (80053)214 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)146 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)124 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 pressure66%
- High cholesterol64%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)38%
- Arthritis35%
- Ischemic heart disease32%
- Depression30%
Hospitals where Timothy R. Toonen works
Medicare's Facility Affiliation Data lists Timothy R. Toonen 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.
- Abbott Northwestern HospitalMinneapolis, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240057
- Allina United HospitalSaint Paul, MN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 240038
- Hudson HospitalHudson, WI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 521335
- M Health Fairview St John's HospitalMaplewood, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240210
- River Falls Area HospitalRiver Falls, WI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 521349
Practice locations
Addresses where Timothy R. Toonen is enrolled with Medicare (CMS data updated October 2, 2026).
- 10150 Niagara Ln N, Suite 100Maple Grove, MN 55369 (844) 317‑4673
- 1580 Beam AveMaplewood, MN 55109 (651) 779‑7978
- 2651 Hillcrest Dr, Suite 105Hudson, WI 54016 (715) 531‑6800
- 6025 Lake Rd, Suite 110Woodbury, MN 55125 (651) 735‑7414
Group practices
Medicare enrollment lists Timothy R. Toonen as a member of this group (CMS data updated October 2, 2026).
- Minnesota Oncology Hematology PA134 clinicians in the group
Specialties
- Medical Oncologyprimary
- Hematologyalso
Other oncologists in Maple Grove
Clinicians with the same Medicare primary specialty in Maple Grove, MN — not a recommendation.
Other clinicians in Minnesota Oncology Hematology PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1770552317 |
| 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