Quick answers
- Does John M. Sherwood accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Sherwood 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 John M. Sherwood see?
- In 2024, CMS data shows 1,610 Original Medicare patients and 2,483 services for John M. Sherwood. This counts Original Medicare only and measures volume, not quality.
- What is John M. Sherwood's NPI number?
- 1821121088. 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 John M. Sherwood, 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 | 1,610 |
|---|---|
| Services billed to Medicare | 2,483 |
| Different services or procedures | 67 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- X-ray of chest, 2 views (71046)425 services
- X-ray of chest, 1 view (71045)363 services
- Ct scan of blood vessels of chest with contrast (71275)208 services
- Ct scan of abdomen and pelvis with contrast (74177)183 services
- Ultrasound study of one arm or leg veins with compression and maneuvers (93971)82 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 cholesterol69%
- Arthritis45%
- Anxiety43%
- Depression41%
- Ischemic heart disease40%
Hospitals where John M. Sherwood works
Medicare's Facility Affiliation Data lists John M. Sherwood 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.
- Altru HospitalGrand Forks, ND · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 350019
- M Health Fairview Ridges HospitalBurnsville, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240207
- M Health Fairview Southdale HospitalEdina, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240078
- M Health Fairview St John's HospitalMaplewood, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240210
- Regions HospitalSaint Paul, MN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 240106
Practice locations
Addresses where John M. Sherwood is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 22; the Medicare profile lists all.
- 12000 Elm Creek Blvd N, Suite 310Maple Grove, MN 55369 · Suburban Imaging LLC (763) 416‑7888
- 1440 Duckwood DrEagan, MN 55122 (651) 406‑8860
- 14500 99th Ave N, Suite 100Maple Grove, MN 55369 (763) 898‑1000
- 1601 Golf Course RdGrand Rapids, MN 55744 · Grand Itasca Clinic and Hospital (218) 326‑3401
- 1617 E Division StRiver Falls, WI 54022 (715) 307‑6600
Group practices
Medicare enrollment lists John M. Sherwood as a member of these groups (CMS data updated October 2, 2026).
- Allina Health System3,842 clinicians in the group
- Fairview Express Care1,911 clinicians in the group
- Park Nicollet Clinic1,787 clinicians in the group
- The Duluth Clinic Ltd1,144 clinicians in the group
- Fairview Clinics782 clinicians in the group
- Altru Health System684 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Maple Grove
Clinicians with the same Medicare primary specialty in Maple Grove, MN — not a recommendation.
Other clinicians in Allina Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821121088 |
| 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