Quick answers
- Does Zackery Y. Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Zackery Y. Zhang 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 Zackery Y. Zhang see?
- In 2024, CMS data shows 478 Original Medicare patients and 1,384 services for Zackery Y. Zhang. This counts Original Medicare only and measures volume, not quality.
- What is Zackery Y. Zhang's NPI number?
- 1306858048. 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 Zackery Y. Zhang, 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 | 478 |
|---|---|
| Services billed to Medicare | 1,384 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)700 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)222 services
- Special stained specimen slides to examine tissue, initial procedure (88342)116 services
- Blood smear interpretation by physician with written report (85060)40 services
- Pathology examination of tissue using a microscope, moderately high complexity (88307)39 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 cholesterol75%
- Arthritis50%
- Chronic kidney disease33%
- Diabetes31%
- Depression30%
Hospitals where Zackery Y. Zhang works
Medicare's Facility Affiliation Data lists Zackery Y. Zhang 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.
- Mercy Health Lakeshore CampusShelby, MI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 231320
- Trinity Health Grand Haven HospitalGrand Haven, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230174
- Trinity Health Muskegon HospitalMuskegon, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230066
Practice locations
Addresses where Zackery Y. Zhang is enrolled with Medicare (CMS data updated October 2, 2026).
- 1500 E Sherman BlvdMuskegon, MI 49444 (231) 728‑5758
Group practices
Medicare enrollment lists Zackery Y. Zhang as a member of this group (CMS data updated October 2, 2026).
- Westshore Diagnostics, PC6 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Muskegon
Clinicians with the same Medicare primary specialty in Muskegon, MI — not a recommendation.
Other clinicians in Westshore Diagnostics, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306858048 |
| 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