Quick answers
- Which hospitals does Robert Walther work at?
- Medicare's official clinician data lists Robert Walther at 1 hospital: New York-Presbyterian Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert Walther see patients?
- Medicare's clinician data lists 2 practice locations, including New York, NY. Call before your visit to confirm the address.
- What is Robert Walther's specialty?
- Medicare lists Dermatology as the primary specialty, and also Internal Medicine.
- Does Robert Walther accept Medicare assignment?
- Yes. Medicare's clinician data says Robert Walther 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 Robert Walther?
- (212) 305-3870, as listed in official Medicare / NPI Registry data.
- What is Robert Walther's NPI number?
- 1538269790. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert Walther works
Medicare's Facility Affiliation Data lists Robert Walther at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · CCN 330101
Practice locations
Addresses where Robert Walther is enrolled with Medicare (CMS data updated 2026-10-02).
- 161 Fort Washington AveNew York, NY 10032 (212) 305‑3870
- 51 W 51st St, Fl 3 Suite 360New York, NY 10019 (212) 326‑8426
Group practices
Medicare enrollment lists Robert Walther as a member of this group (CMS data updated 2026-10-02).
- Trustees of Columbia University in the City of New York2,296 clinicians in the group
Specialties
- Dermatologyprimary
- Internal Medicinealso
Other dermatologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Carolina At Chapel Hill School Of Medicine |
| Graduation year | 1973 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538269790 |
| 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