Quick answers
- Which hospitals does Johnson M. Liu work at?
- Medicare's official clinician data lists Johnson M. Liu at 2 hospitals: Mount Sinai Beth Israel and Mount Sinai Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Johnson M. Liu see patients?
- Medicare's clinician data lists 1 practice location in New York, NY. Call before your visit to confirm the address.
- What is Johnson M. Liu's specialty?
- Medicare lists Hematology as the primary specialty, and also Medical Oncology.
- Does Johnson M. Liu accept Medicare assignment?
- Yes. Medicare's clinician data says Johnson M. Liu 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 Johnson M. Liu?
- (212) 731-7650, as listed in official Medicare / NPI Registry data.
- What is Johnson M. Liu's NPI number?
- 1861552903. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Johnson M. Liu works
Medicare's Facility Affiliation Data lists Johnson M. Liu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mount Sinai Beth IsraelNew York, NY · Acute Care Hospital · closed, according to its website · CCN 330169
- Mount Sinai HospitalNew York, NY · Acute Care Hospital · CCN 330024
Practice locations
Addresses where Johnson M. Liu is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Gustave L Levy PlNew York, NY 10029 (212) 731‑7650
Group practices
Medicare enrollment lists Johnson M. Liu as a member of this group (CMS data updated 2026-10-02).
- Icahn School of Medicine at Mount Sinai2,843 clinicians in the group
Specialties
- Hematologyprimary
- Medical Oncologyalso
Other hematologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861552903 |
| 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