Quick answers
- Does Steven J. Grosser accept Medicare assignment?
- Yes. Medicare's clinician data says Steven J. Grosser 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 Steven J. Grosser see?
- In 2024, CMS data shows 591 Original Medicare patients and 2,672 services for Steven J. Grosser. This counts Original Medicare only and measures volume, not quality.
- What is Steven J. Grosser's NPI number?
- 1134125859. 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 Steven J. Grosser, 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 | 591 |
|---|---|
| Services billed to Medicare | 2,672 |
| Different services or procedures | 38 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient complete exam of visual system (92014)309 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)256 services
- Imaging of retina (92134)221 services
- Measurement of corneal curvature and depth of eye (92136)146 services
- Imaging of optic nerve (92133)145 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 cholesterol70%
- High blood pressure68%
- Arthritis41%
- Diabetes24%
- Ischemic heart disease23%
- Anxiety23%
Hospitals where Steven J. Grosser works
Medicare's Facility Affiliation Data lists Steven J. Grosser 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
- Buffalo HospitalBuffalo, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 240076
Practice locations
Addresses where Steven J. Grosser is enrolled with Medicare (CMS data updated October 2, 2026).
- 107 Ctr Dr, Suite 200Buffalo, MN 55313 (763) 682‑9241
- 1206 Cedar St, Suite 100Monticello, MN 55362
- 15655 37th Ave N, Suite 200Plymouth, MN 55446 (763) 553‑0288
- 303 Catlin StBuffalo, MN 55313 (763) 682‑1200
- 5851 Duluth St, Suite 215Golden Valley, MN 55422 (763) 546‑8422
Group practices
Medicare enrollment lists Steven J. Grosser as a member of this group (CMS data updated October 2, 2026).
- West Metro Ophthalmology PA9 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Other clinicians in West Metro Ophthalmology PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134125859 |
| 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