Quick answers
- Does Melissa L. Yu Dang accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa L. Yu Dang 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 Melissa L. Yu Dang see?
- In 2024, CMS data shows 716 Original Medicare patients and 846 services for Melissa L. Yu Dang. This counts Original Medicare only and measures volume, not quality.
- What is Melissa L. Yu Dang's NPI number?
- 1104487941. 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 Melissa L. Yu Dang, 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 | 716 |
|---|---|
| Services billed to Medicare | 846 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)355 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)246 services
- Critical care, first 30-74 minutes (99291)87 services
- Emergency department visit with moderate level of medical decision making (99284)56 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)16 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%
- Arthritis55%
- Ischemic heart disease47%
- Diabetes45%
- Chronic kidney disease44%
Hospitals where Melissa L. Yu Dang works
Medicare's Facility Affiliation Data lists Melissa L. Yu Dang 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.
- Cooperman Barnabas Medical CenterLivingston, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310076
Practice locations
Addresses where Melissa L. Yu Dang is enrolled with Medicare (CMS data updated October 2, 2026).
- 94 Old Short Hills RdLivingston, NJ 07039 (973) 322‑5000
Group practices
Medicare enrollment lists Melissa L. Yu Dang as a member of this group (CMS data updated October 2, 2026).
- RWJBH Emergency Medicine Associates, LLC848 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Other clinicians in RWJBH Emergency Medicine Associates, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104487941 |
| 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