Quick answers
- Does Dominic G. Di Tomasso accept Medicare assignment?
- Yes. Medicare's clinician data says Dominic G. Di Tomasso 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 Dominic G. Di Tomasso see?
- In 2024, CMS data shows 110 Original Medicare patients and 156 services for Dominic G. Di Tomasso. This counts Original Medicare only and measures volume, not quality.
- What is Dominic G. Di Tomasso's NPI number?
- 1447516398. 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 Dominic G. Di Tomasso, 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 | 110 |
|---|---|
| Services billed to Medicare | 156 |
| Different services or procedures | 54 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)15 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 cholesterol75%
- High blood pressure72%
- Arthritis47%
- Ischemic heart disease27%
- Chronic kidney disease26%
- Diabetes25%
Hospitals where Dominic G. Di Tomasso works
Medicare's Facility Affiliation Data lists Dominic G. Di Tomasso 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.
- Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224
- Memorialcare Saddleback Medical CenterLaguna Hills, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050603
Practice locations
Addresses where Dominic G. Di Tomasso is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Hoag DrNewport Beach, CA 92663 (949) 645‑8600
- 24451 Health Ctr DrLaguna Hills, CA 92653 (949) 837‑4500
- 24451 Health Ctr Dr, Suite 104Laguna Hills, CA 92653 (949) 837‑4500
- 26357 McBean Pkwy, Suite 100Santa Clarita, CA 91355 (661) 799‑8300
Group practices
Medicare enrollment lists Dominic G. Di Tomasso as a member of these groups (CMS data updated October 2, 2026).
- Cep America - Anesthesia PC849 clinicians in the group
- Newport Harbor Anesthesia Consultants Medical Group Inc95 clinicians in the group
- California Anesthesia Associates Medical Group Inc49 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Newport Beach
Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.
Other clinicians in Cep America - Anesthesia PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447516398 |
| 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