Quick answers
- Does William D. Gruzensky accept Medicare assignment?
- Yes. Medicare's clinician data says William D. Gruzensky 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 William D. Gruzensky see?
- In 2024, CMS data shows 573 Original Medicare patients and 2,071 services for William D. Gruzensky. This counts Original Medicare only and measures volume, not quality.
- What is William D. Gruzensky's NPI number?
- 1992812234. 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 William D. Gruzensky, 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 | 573 |
|---|---|
| Services billed to Medicare | 2,071 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Measurement of corneal curvature and depth of eye (92136)1,227 services
- Removal of cataract with insertion of prosthetic lens (66984)777 services
- Complex removal of cataract with insertion of prosthetic lens (66982)31 services
- Removal of recurring cataract in lens capsule using a laser (66821)19 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 pressure61%
- High cholesterol54%
- Arthritis39%
- Diabetes25%
- Ischemic heart disease18%
- Chronic kidney disease12%
Practice locations
Addresses where William D. Gruzensky is enrolled with Medicare (CMS data updated October 2, 2026).
- 1600 A St, Suite 200Anchorage, AK 99501 (907) 272‑2423
- 1621 Market Place DrGreat Falls, MT 59404 (406) 454‑2202
- 19801 SW 72nd Ave, Suite 150Tualatin, OR 97062 (503) 691‑2283
- 2517 NE Kresky AveChehalis, WA 98532 (360) 748‑8632
- 3900 Kern WayYakima, WA 98902 (509) 966‑1356
Group practices
Medicare enrollment lists William D. Gruzensky as a member of these groups (CMS data updated October 2, 2026).
- Pacific Cataract and Laser Institute Inc PC74 clinicians in the group
- Pacific Cataract and Laser Institute of Alaska Inc PC13 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Anchorage
Clinicians with the same Medicare primary specialty in Anchorage, AK — not a recommendation.
Other clinicians in Pacific Cataract and Laser Institute Inc PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1982 (44 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992812234 |
| 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
- 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