Quick answers
- Which hospitals does Ryan Cook work at?
- Medicare's official clinician data lists Ryan Cook at 1 hospital: Kaiser Foundation Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan Cook see patients?
- Medicare's clinician data lists 1 practice location in San Rafael, CA. Call before your visit to confirm the address.
- What is Ryan Cook's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Ryan Cook accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan Cook 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 Ryan Cook offer telehealth?
- Medicare's clinician data says Ryan Cook offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ryan Cook?
- (415) 444-7900, as listed in official Medicare / NPI Registry data.
- What is Ryan Cook's NPI number?
- 1588284756. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ryan Cook works
Medicare's Facility Affiliation Data lists Ryan Cook at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation HospitalSan Rafael, CA · Acute Care Hospital · CCN 050510
Practice locations
Addresses where Ryan Cook is enrolled with Medicare (CMS data updated 2026-10-02).
- 1650 Los Gamos DrSan Rafael, CA 94903 (415) 444‑7900
Group practices
Medicare enrollment lists Ryan Cook as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in San Rafael
Clinicians with the same Medicare primary specialty in San Rafael, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588284756 |
| 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