Quick answers
- Does Christina Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Christina 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 Christina Zhang see?
- In 2024, CMS data shows 398 Original Medicare patients and 917 services for Christina Zhang. This counts Original Medicare only and measures volume, not quality.
- What is Christina Zhang's NPI number?
- 1417193384. 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 Christina 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 | 398 |
|---|---|
| Services billed to Medicare | 917 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)203 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)138 services
- Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus (87426)87 services
- Emergency department visit with high level of medical decision making (99285)69 services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)62 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 cholesterol75%
- High blood pressure73%
- Arthritis51%
- Ischemic heart disease35%
- Diabetes33%
- Anxiety28%
Hospitals where Christina Zhang works
Medicare's Facility Affiliation Data lists Christina 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 Medical CenterRockville Centre, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330259
- United Health Services Hospitals, IncBinghamton, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330394
- Westchester Medical CenterValhalla, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330234
Practice locations
Addresses where Christina Zhang is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 Woods RdValhalla, NY 10595 (914) 493‑5247
- 33 -57 Harrison StJohnson City, NY 13790 (607) 763‑6622
- 715 9th AveNew York, NY 10019 (212) 757‑2015
Group practices
Medicare enrollment lists Christina Zhang as a member of these groups (CMS data updated October 2, 2026).
- United Medical Associates PC229 clinicians in the group
- Physicians Medical Associates New York PC102 clinicians in the group
- New York Physician Associates of Medicine PC17 clinicians in the group
- West Side Physicians of NYC, PLLC3 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Valhalla
Clinicians with the same Medicare primary specialty in Valhalla, NY — not a recommendation.
Other clinicians in United Medical Associates PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417193384 |
| 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