Quick answers
- Which hospitals does John J. Black work at?
- Medicare's official clinician data lists John J. Black at 1 hospital: Huntington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Black see patients?
- Medicare's clinician data lists 2 practice locations, including Pasadena, CA. Call before your visit to confirm the address.
- What is John J. Black's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does John J. Black accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Black 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 John J. Black offer telehealth?
- Medicare's clinician data says John J. Black offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John J. Black?
- (310) 665-7200, as listed in official Medicare / NPI Registry data.
- What is John J. Black's NPI number?
- 1710340203. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John J. Black works
Medicare's Facility Affiliation Data lists John J. Black at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Huntington HospitalPasadena, CA · Acute Care Hospital · CCN 050438
Practice locations
Addresses where John J. Black is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 W California BlvdPasadena, CA 91105 (310) 665‑7200
- 55 E California Blvd, Suite 204Pasadena, CA 91105 (626) 397‑8323
Group practices
Medicare enrollment lists John J. Black as a member of this group (CMS data updated 2026-10-02).
- Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Pasadena
Clinicians with the same Medicare primary specialty in Pasadena, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Pittsburgh School Of Medicine |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1710340203 |
| 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