Quick answers
- Which hospitals does Hong Y. Ma work at?
- Medicare's official clinician data lists Hong Y. Ma at 3 hospitals: Hudson Valley Hospital Center, New York-Presbyterian Hospital and Westchester Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Hong Y. Ma see patients?
- Medicare's clinician data lists 3 practice locations, including New York, NY. Call before your visit to confirm the address.
- What is Hong Y. Ma's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Hong Y. Ma accept Medicare assignment?
- Yes. Medicare's clinician data says Hong Y. Ma accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Hong Y. Ma?
- (212) 326-8874, as listed in official Medicare / NPI Registry data.
- What is Hong Y. Ma's NPI number?
- 1255612016. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Hong Y. Ma works
Medicare's Facility Affiliation Data lists Hong Y. Ma at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hudson Valley Hospital CenterCortlandt Manor, NY · Acute Care Hospital · CCN 330267
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · CCN 330101
- Westchester Medical CenterValhalla, NY · Acute Care Hospital · CCN 330234
Practice locations
Addresses where Hong Y. Ma is enrolled with Medicare (CMS data updated 2026-10-02).
- 51 W 51st St, Suite 301New York, NY 10019 (212) 326‑8874
- 622 W 168th StNew York, NY 10032 (212) 305‑9876
- 722 W 168th StNew York, NY 10032 (212) 342‑2889
Group practices
Medicare enrollment lists Hong Y. Ma as a member of these groups (CMS data updated 2026-10-02).
- Trustees of Columbia University in the City of New York2,296 clinicians in the group
- Columbiadoctors/Newyork-Presbyterianimaging109 clinicians in the group
- Columbia/Newyork-Presbyterian Advanced Imaging Inc.89 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255612016 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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