Quick answers
- Does Yuanyuan Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Yuanyuan 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 Yuanyuan Zhang see?
- In 2024, CMS data shows 2,674 Original Medicare patients and 6,851 services for Yuanyuan Zhang. This counts Original Medicare only and measures volume, not quality.
- What is Yuanyuan Zhang's NPI number?
- 1144546961. 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 Yuanyuan 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 | 2,674 |
|---|---|
| Services billed to Medicare | 6,851 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,436 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,032 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)800 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)704 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)602 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%
- Diabetes52%
- Arthritis51%
- Ischemic heart disease48%
- Chronic kidney disease40%
Hospitals where Yuanyuan Zhang works
Medicare's Facility Affiliation Data lists Yuanyuan 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.
- Beebe Medical CenterLewes, DE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 080007
- Christiana HospitalNewark, DE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 080001
- Union Hospital of Cecil CountyElkton, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 210032
Practice locations
Addresses where Yuanyuan Zhang is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 106 E Main St, Suite 108Elkton, MD 21921 (302) 366‑5658
- 121 Becks Woods Dr, Suite 200Bear, DE 19701 (302) 366‑8600
- 4755 Ogletown Stanton RdNewark, DE 19718
- 501 W 14th StWilmington, DE 19801
- 501 W 14th St Fl, 6 Cchs Infectious DiseaseWilmington, DE 19801 (302) 320‑1300
Group practices
Medicare enrollment lists Yuanyuan Zhang as a member of these groups (CMS data updated October 2, 2026).
- Christiana Care Health Services Inc1,483 clinicians in the group
- Cardiology Physicians, LLC49 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Maryland →
Other cardiologists in Elkton
Clinicians with the same Medicare primary specialty in Elkton, MD — not a recommendation.
Other clinicians in Christiana Care Health Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144546961 |
| 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