Quick answers
- Which hospitals does John A. Grimaldi work at?
- Medicare's official clinician data lists John A. Grimaldi at 2 hospitals: Scripps Mercy Hospital and Sharp Chula Vista Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John A. Grimaldi see patients?
- Medicare's clinician data lists 1 practice location in Chula Vista, CA. Call before your visit to confirm the address.
- What is John A. Grimaldi's specialty?
- Medicare lists Urology as the primary specialty.
- Does John A. Grimaldi accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Grimaldi 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 John A. Grimaldi?
- (619) 420-0201, as listed in official Medicare / NPI Registry data.
- What is John A. Grimaldi's NPI number?
- 1821157033. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John A. Grimaldi works
Medicare's Facility Affiliation Data lists John A. Grimaldi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · CCN 050077
- Sharp Chula Vista Medical CenterChula Vista, CA · Acute Care Hospital · CCN 050222
Practice locations
Addresses where John A. Grimaldi is enrolled with Medicare (CMS data updated 2026-10-02).
- 450 4th Ave, Suite 312Chula Vista, CA 91910 (619) 420‑0201
Specialties
- Urologyprimary
Other urologists in Chula Vista
Clinicians with the same Medicare primary specialty in Chula Vista, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821157033 |
| 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