Quick answers
- Which hospitals does Mika Sumiyoshi work at?
- Medicare's official clinician data lists Mika Sumiyoshi at 1 hospital: Ventura County Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mika Sumiyoshi see patients?
- Medicare's clinician data lists 2 practice locations, including Ventura, CA. Call before your visit to confirm the address.
- What is Mika Sumiyoshi's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Mika Sumiyoshi accept Medicare assignment?
- Yes. Medicare's clinician data says Mika Sumiyoshi 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 Mika Sumiyoshi offer telehealth?
- Medicare's clinician data says Mika Sumiyoshi offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mika Sumiyoshi?
- (805) 652-5011, as listed in official Medicare / NPI Registry data.
- What is Mika Sumiyoshi's NPI number?
- 1730400680. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mika Sumiyoshi works
Medicare's Facility Affiliation Data lists Mika Sumiyoshi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ventura County Medical CenterVentura, CA · Acute Care Hospital · CCN 050159
Practice locations
Addresses where Mika Sumiyoshi is enrolled with Medicare (CMS data updated 2026-10-02).
- 147 N Brent StVentura, CA 93003 (805) 652‑5011
- 300 Hillmont AveVentura, CA 93003
Group practices
Medicare enrollment lists Mika Sumiyoshi as a member of these groups (CMS data updated 2026-10-02).
- County of Ventura344 clinicians in the group
- Community Memorial Health System185 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Ventura
Clinicians with the same Medicare primary specialty in Ventura, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1730400680 |
| 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