Quick answers
- Which hospitals does Brian Ayuste work at?
- Medicare's official clinician data lists Brian Ayuste at 2 hospitals: Henry Mayo Newhall Hospital and Providence Holy Cross Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brian Ayuste see patients?
- Medicare's clinician data lists 2 practice locations, including Granada Hills, CA and Newhall, CA. Call before your visit to confirm the address.
- What is Brian Ayuste's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Brian Ayuste accept Medicare assignment?
- Yes. Medicare's clinician data says Brian Ayuste 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 Brian Ayuste offer telehealth?
- Medicare's clinician data says Brian Ayuste offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Brian Ayuste?
- (818) 366-4626, as listed in official Medicare / NPI Registry data.
- What is Brian Ayuste's NPI number?
- 1104003458. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brian Ayuste works
Medicare's Facility Affiliation Data lists Brian Ayuste at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Henry Mayo Newhall HospitalValencia, CA · Acute Care Hospital · CCN 050624
- Providence Holy Cross Medical CenterMission Hills, CA · Acute Care Hospital · CCN 050278
Practice locations
Addresses where Brian Ayuste is enrolled with Medicare (CMS data updated 2026-10-02).
- 10605 Balboa Blvd, Suite 240Granada Hills, CA 91344 (818) 366‑4626
- 23928 Lyons Ave, Suite 105Newhall, CA 91321 (661) 254‑0193
Group practices
Medicare enrollment lists Brian Ayuste as a member of this group (CMS data updated 2026-10-02).
- Renal Consultants Medical Group9 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Granada Hills
Clinicians with the same Medicare primary specialty in Granada Hills, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1104003458 |
| 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