Quick answers
- Which hospitals does Ralph Nader work at?
- Medicare's official clinician data lists Ralph Nader at 3 hospitals: Chester County Hospital, Hospital of Univ of Pennsylvania and Penn Presbyterian Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ralph Nader see patients?
- Medicare's clinician data lists 3 practice locations, including Philadelphia, PA. Call before your visit to confirm the address.
- What is Ralph Nader's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Nephrology.
- Does Ralph Nader accept Medicare assignment?
- Yes. Medicare's clinician data says Ralph Nader 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.
- Does Ralph Nader offer telehealth?
- Medicare's clinician data says Ralph Nader offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ralph Nader?
- (215) 662-4000, as listed in official Medicare / NPI Registry data.
- What is Ralph Nader's NPI number?
- 1588154041. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ralph Nader works
Medicare's Facility Affiliation Data lists Ralph Nader at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chester County HospitalWest Chester, PA · Acute Care Hospital · CCN 390179
- Hospital of Univ of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · CCN 390111
- Penn Presbyterian Medical CenterPhiladelphia, PA · Acute Care Hospital · CCN 390223
Practice locations
Addresses where Ralph Nader is enrolled with Medicare (CMS data updated 2026-10-02).
- 3400 Spruce StPhiladelphia, PA 19104 (215) 662‑4000
- 3400 Spruce St 210 White Building, Renal Electrolyte HupPhiladelphia, PA 19104 (215) 662‑2638
- 51 N 39th Street 2 Mob, Uphs/presbyterian Division of Renal ElectroPhiladelphia, PA 19104 (215) 662‑8730
Group practices
Medicare enrollment lists Ralph Nader as a member of this group (CMS data updated 2026-10-02).
- University of Penn - Medical Group3,505 clinicians in the group
Specialties
- Internal Medicineprimary
- Nephrologyalso
Other internal medicine doctors in Philadelphia
Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588154041 |
| 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