Quick answers
- Does Spencer A. Bershow accept Medicare assignment?
- Yes. Medicare's clinician data says Spencer A. Bershow 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 Spencer A. Bershow see?
- In 2024, CMS data shows 161 Original Medicare patients and 288 services for Spencer A. Bershow. This counts Original Medicare only and measures volume, not quality.
- What is Spencer A. Bershow's NPI number?
- 1801850946. 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 Spencer A. Bershow, 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 | 161 |
|---|---|
| Services billed to Medicare | 288 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)117 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)51 services
- Diagnostic exam of bladder and urethra using an endoscope (52000)22 services
- Electronic assessment of bladder emptying (51741)19 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)18 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 pressure71%
- High cholesterol70%
- Arthritis38%
- Chronic kidney disease37%
- Ischemic heart disease30%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)30%
Hospitals where Spencer A. Bershow works
Medicare's Facility Affiliation Data lists Spencer A. Bershow 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.
- Mayo Clinic Health System - FairmontFairmont, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240166
- Mayo Clinic Health System - MankatoMankato, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240093
- Mayo Clinic Health System - WasecaWaseca, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241345
- Mayo Clinic Health System New PragueNew Prague, MN · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 241361
- Mayo Clinic Health System St. JamesSt James, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241333
Practice locations
Addresses where Spencer A. Bershow is enrolled with Medicare (CMS data updated October 2, 2026).
- 1025 Marsh StMankato, MN 56001 (507) 625‑4031
Group practices
Medicare enrollment lists Spencer A. Bershow as a member of this group (CMS data updated October 2, 2026).
- Mayo Clinic Health System-Southwest Minnesota Region661 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Mankato
Clinicians with the same Medicare primary specialty in Mankato, MN — not a recommendation.
Other clinicians in Mayo Clinic Health System-Southwest Minnesota Region
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 2001 (25 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) | 1801850946 |
| 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