Quick answers
- Does Giuseppe Ammirati accept Medicare assignment?
- Yes. Medicare's clinician data says Giuseppe Ammirati accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Giuseppe Ammirati see?
- In 2024, CMS data shows 145 Original Medicare patients and 697 services for Giuseppe Ammirati. This counts Original Medicare only and measures volume, not quality.
- What is Giuseppe Ammirati's NPI number?
- 1861653990. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Giuseppe Ammirati, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 145 |
|---|---|
| Services billed to Medicare | 697 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Critical care, first 30-74 minutes (99291)91 services
- Ultrasonic guidance for blood vessel access (76937)46 services
- Insertion of tube into abdominal, pelvic, or leg artery, initial second order branch (36246)44 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)41 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)39 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Stroke or mini-stroke52%
- Ischemic heart disease38%
- Atrial fibrillation33%
Hospitals where Giuseppe Ammirati works
Medicare's Facility Affiliation Data lists Giuseppe Ammirati at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026
- Scripps Green HospitalLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050424
- Scripps Memorial Hospital - EncinitasEncinitas, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050503
- Scripps Memorial Hospital La JollaLa Jolla, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050324
- Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050077
Practice locations
Addresses where Giuseppe Ammirati is enrolled with Medicare (CMS data updated October 2, 2026).
- 5555 Grossmont Ctr DrLa Mesa, CA 91942 (619) 740‑6000
- 9834 Genesee Ave, Suite 411La Jolla, CA 92037 (858) 677‑1755
Group practices
Medicare enrollment lists Giuseppe Ammirati as a member of these groups (CMS data updated October 2, 2026).
- Emergency and Acute Care Medical Corporation422 clinicians in the group
- California Center for Neurointerventional Surgery4 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Emergency and Acute Care Medical Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1861653990 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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