Quick answers
- Which hospitals does Ali H. Mesiwala work at?
- Medicare's official clinician data lists Ali H. Mesiwala at 5 hospitals: Casa Colina Hospital, Chapman Global Medical Center, Hoag Memorial Hospital Presbyterian, San Antonio Regional Hospital and St Bernardine Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ali H. Mesiwala see patients?
- Medicare's clinician data lists 3 practice locations, including Pomona, CA, Newport Beach, CA and Rancho Cucamonga, CA. Call before your visit to confirm the address.
- What is Ali H. Mesiwala's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does Ali H. Mesiwala accept Medicare assignment?
- Yes. Medicare's clinician data says Ali H. Mesiwala 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 Ali H. Mesiwala offer telehealth?
- Medicare's clinician data says Ali H. Mesiwala offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ali H. Mesiwala?
- (909) 865-1020, as listed in official Medicare / NPI Registry data.
- What is Ali H. Mesiwala's NPI number?
- 1306814868. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ali H. Mesiwala works
Medicare's Facility Affiliation Data lists Ali H. Mesiwala at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Casa Colina HospitalPomona, CA · Acute Care Hospital · CCN 050782
- Chapman Global Medical CenterOrange, CA · Acute Care Hospital · CCN 050745
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · CCN 050224
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · CCN 050099
- St Bernardine Medical CenterSan Bernardino, CA · Acute Care Hospital · CCN 050129
Practice locations
Addresses where Ali H. Mesiwala is enrolled with Medicare (CMS data updated 2026-10-02).
- 160 E Artesia St, Suite 220Pomona, CA 91767 (909) 865‑1020
- 3501 Jamboree Rd, Suite 1250Newport Beach, CA 92660 (909) 881‑6713
- 9170 Haven Ave, Suite 108Rancho Cucamonga, CA 91730 (909) 881‑6713
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Pomona
Clinicians with the same Medicare primary specialty in Pomona, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1306814868 |
| 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