Quick answers
- Which hospitals does Mark H. Katz work at?
- Medicare's official clinician data lists Mark H. Katz at 1 hospital: Kaiser Foundation Hospital - West LA. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark H. Katz see patients?
- Medicare's clinician data lists 2 practice locations, including Santa Monica, CA and Los Angeles, CA. Call before your visit to confirm the address.
- What is Mark H. Katz's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Mark H. Katz accept Medicare assignment?
- Yes. Medicare's clinician data says Mark H. Katz 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 Mark H. Katz offer telehealth?
- Medicare's clinician data says Mark H. Katz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark H. Katz?
- (310) 319-8200, as listed in official Medicare / NPI Registry data.
- What is Mark H. Katz's NPI number?
- 1487725370. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark H. Katz works
Medicare's Facility Affiliation Data lists Mark H. Katz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital - West LALos Angeles, CA · Acute Care Hospital · CCN 050561
Practice locations
Addresses where Mark H. Katz is enrolled with Medicare (CMS data updated 2026-10-02).
- 1450 10th StSanta Monica, CA 90401 (310) 319‑8200
- 6041 Cadillac AveLos Angeles, CA 90034 (800) 954‑8000
Group practices
Medicare enrollment lists Mark H. Katz as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Santa Monica
Clinicians with the same Medicare primary specialty in Santa Monica, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 1975 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1487725370 |
| 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