Quick answers
- Which hospitals does Ryan M. Casserly work at?
- Medicare's official clinician data lists Ryan M. Casserly at 2 hospitals: Community Hospital of the Monterey Peninsula and Hazel Hawkins Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ryan M. Casserly see patients?
- Medicare's clinician data lists 1 practice location in Monterey, CA. Call before your visit to confirm the address.
- What is Ryan M. Casserly's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Ryan M. Casserly accept Medicare assignment?
- Yes. Medicare's clinician data says Ryan M. Casserly 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 Ryan M. Casserly?
- (831) 649-4000, as listed in official Medicare / NPI Registry data.
- What is Ryan M. Casserly's NPI number?
- 1114344025. 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 M. Casserly works
Medicare's Facility Affiliation Data lists Ryan M. Casserly at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community Hospital of the Monterey PeninsulaMonterey, CA · Acute Care Hospital · CCN 050145
- Hazel Hawkins Memorial HospitalHollister, CA · Critical Access Hospital · CCN 051337
Practice locations
Addresses where Ryan M. Casserly is enrolled with Medicare (CMS data updated 2026-10-02).
- 966 Cass St, Suite 250Monterey, CA 93940 (831) 649‑4000
Group practices
Medicare enrollment lists Ryan M. Casserly as a member of this group (CMS data updated 2026-10-02).
- Central Coast Head and Neck Surgeons A M C Inc14 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114344025 |
| 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