Mark Masotto, M.D.
NPI 1033118336 · Diagnostic Radiology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Masotto, M.D. is a Diagnostic Radiology Physician provider in Orange, CA (NPI 1033118336).
Provider details
- NPI number
- 1033118336
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A61275 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,173 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 648 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 200 | $41 |
| 3d Radiographic Procedure76376 | 167 | $10 |
| X-Ray of Chest, 2 Views71046 | 148 | $29 |
| 3d Radiographic Procedure With Computerized Image Postprocessing76377 | 137 | $39 |
| X-Ray of Chest, 2 Views71046 | 111 | $11 |
| 3d Radiographic Procedure76376 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,400 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-19
- Last updated
- 2008-08-15
Frequently asked questions
- What is Mark Masotto's NPI number?
- Mark Masotto's National Provider Identifier (NPI) is 1033118336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Masotto's specialty?
- Mark Masotto is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Masotto located?
- Mark Masotto's practice location on file with NPPES is 431 S Batavia St, Orange, CA 92868-3936.
- What is Mark Masotto's phone number?
- The practice phone number listed in the NPPES registry for Mark Masotto is (714) 538-6731.
- Does Mark Masotto accept Medicare?
- Mark Masotto is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Masotto's NPI active?
- Yes — Mark Masotto's NPI (1033118336) is active in the NPPES registry as of the last update on 2008-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.