Quick answers
- Does Yawen Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Yawen 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 Yawen Zhang see?
- In 2024, CMS data shows 406 Original Medicare patients and 1,114 services for Yawen Zhang. This counts Original Medicare only and measures volume, not quality.
- What is Yawen Zhang's NPI number?
- 1093344137. 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 Yawen 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 | 406 |
|---|---|
| Services billed to Medicare | 1,114 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)613 services
- Hospital discharge day management, more than 30 minutes (99239)188 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)164 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)97 services
- Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)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 pressure75%
- High cholesterol75%
- Arthritis64%
- Diabetes55%
- Ischemic heart disease50%
- Heart failure49%
Hospitals where Yawen Zhang works
Medicare's Facility Affiliation Data lists Yawen 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.
- Raritan Bay Medical CenterPerth Amboy, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310039
- Staten Island University HospitalStaten Island, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330160
Practice locations
Addresses where Yawen Zhang is enrolled with Medicare (CMS data updated October 2, 2026).
- 19 Prospect StSummit, NJ 07901 (908) 522‑7000
- 475 Seaview AveStaten Island, NY 10305 (212) 434‑6980
- 530 New Brunswick Ave, Raritan Bay Medical Center PerthPerth Amboy, NJ 08861 (732) 324‑5007
- 65 James StEdison, NJ 08820 (732) 321‑7000
Group practices
Medicare enrollment lists Yawen Zhang as a member of these groups (CMS data updated October 2, 2026).
- North Shore-Lij Medical PC6,440 clinicians in the group
- Hospitalist Physicians of New Jersey PA157 clinicians in the group
- Summit Oaks Hospital Inc12 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Summit
Clinicians with the same Medicare primary specialty in Summit, NJ — not a recommendation.
Other clinicians in North Shore-Lij Medical PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093344137 |
| 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