Quick answers
- Does Zhiwei Yin accept Medicare assignment?
- Yes. Medicare's clinician data says Zhiwei Yin 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 Zhiwei Yin see?
- In 2024, CMS data shows 293 Original Medicare patients and 1,059 services for Zhiwei Yin. This counts Original Medicare only and measures volume, not quality.
- What is Zhiwei Yin's NPI number?
- 1407201171. 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 Zhiwei Yin, 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 | 293 |
|---|---|
| Services billed to Medicare | 1,059 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)401 services
- Special stained specimen slides to examine tissue, initial procedure (88342)154 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)120 services
- Cell examination of specimen, selective cellular enhancement technique (88112)60 services
- Pathology examination of tissue using a microscope, limited examination (88300)49 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%
- Diabetes62%
- Arthritis51%
- Ischemic heart disease49%
- Chronic kidney disease48%
Hospitals where Zhiwei Yin works
Medicare's Facility Affiliation Data lists Zhiwei Yin 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.
- Saint Michael's Medical CenterNewark, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310096
Practice locations
Addresses where Zhiwei Yin is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Bay AveMontclair, NJ 07042 (973) 877‑5200
- 111 Central AveNewark, NJ 07102 (973) 877‑5200
Group practices
Medicare enrollment lists Zhiwei Yin as a member of this group (CMS data updated October 2, 2026).
- Mario Gonzalez, MD3 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Montclair
Clinicians with the same Medicare primary specialty in Montclair, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407201171 |
| 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