NPIMap

Individual provider Active NPI

Mark Nunzio Masotto, M.D.

  • Diagnostic Radiology Physician
  • Orange, CA
National Provider Identifier
1033118336
Registry record updated Aug 15, 2008
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
A61275 Issued in CA
Practice address
431 S Batavia St
Ste. 103
Orange, CA 92868-3936
Phone
(714) 538-6731
Fax
(714) 771-8369
NPI assigned
Jul 19, 2005
Last updated
Aug 15, 2008By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 15, 2008

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X A61275 CA Primary

Addresses

Primary practice location

431 S Batavia St
Ste. 103
Orange, CA 92868-3936

Mailing address

PO Box 14005
Orange, CA 92863-1405
Phone (714) 571-5000

Other identifiers 5

IdentifierTypeStateIssuer
300136609OtherRAILROAD MEDICARE
00A612750MedicaidCA
00A612750OtherBLUE SHIELD OF CA
00A612750 159OtherCALOPTIMA
053304CH71589OtherTRAILBLAZER

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040806000945 CA Practitioner - Diagnostic Radiology 9931171345 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Creighton University School of Medicine, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Moran Rowen and Dorsey IncGroup PAC ID 9537063375, 35 clinicians
Riverside Radiology and Interventional Associates IncGroup PAC ID 8729976964, 251 clinicians

Practice addresses (Care Compare)

1031 W Chapman Ave
Orange, CA 92868-2872
Phone (714) 997-4762

1095 Irvine Blvd
Tustin, CA 92780-3526
Phone (714) 505-7110

1100 W Stewart Dr
St Joseph Hospital
Orange, CA 92868-3891
Phone (714) 771-8171

12942 Harbor Blvd
Garden Grove, CA 92840-5809
Phone (714) 705-2120

14 Dreamlight
Irvine, CA 92603-4258
Phone (614) 340-7740

2212 E 4TH St
Santa Ana, CA 92705-3870
Phone (714) 571-7767

2501 E Chapman Ave
Orange, CA 92869-3204
Phone (714) 628-3305

363 S Main St
Suite 115
Orange, CA 92868-3813
Phone (866) 598-0076

845 W la Veta Ave
Suite 105
Orange, CA 92868-3930
Phone (714) 639-2600

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.56 of 100Reported as group
Quality
85.63
Improvement activities
40
Cost
74.88

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A61275CAMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Riverside Radiology and Interventional Associates Inc Diagnostic Radiology CurrentSince Nov 1, 2025 Accepting new patients
Orange County Heart Institute and Research Center a Medical Group CurrentSince Apr 1, 2023 Accepting new patients
Kaweah Delta Health Care District CurrentSince Jan 13, 2026 Accepting new patients
Mineral King Radiological Medical Group, Inc Diagnostic Radiology CurrentSince Sep 19, 2025 Accepting new patients
Moran Rowen and Dorsey Inc Diagnostic Radiology CurrentSince Jun 1, 2002 Accepting new patients
Kaweah Delta Health Care District CurrentSince Jan 13, 2026 Accepting new patients
North Oc Imaging JV, LLC CurrentSince Dec 6, 2022 Accepting new patients
Jeffrey M. Shapiro, MD, Inc PastSince Apr 1, 2023 Accepting new patients
Nephrology Specialists Medical Group, Inc. PastSince Jul 1, 1998 Accepting new patients
Children's Hospital of Orange County Past Accepting new patients
St Joseph Hospital of Orange Past Accepting new patients
Tyson C. Cobb, M.D., Inc PastSince Oct 13, 2008 Accepting new patients

Locations

13400 Jamboree Rd
Irvine, CA 92602
Phone (714) 263-9279

1100 W Stewart Dr
Orange, CA 92868
Phone (714) 532-8620

1140 W La Veta Ave
Ste 615
Orange, CA 92868
Phone (714) 543-8555

1140 W La Veta Ave
Ste 640
Orange, CA 92868
Phone (714) 543-6054

1201 W La Veta Ave
Ste 102
Orange, CA 92868
Phone (714) 771-8370

431 S Batavia St
Ste 103
Orange, CA 92868
Phone (714) 538-6731

705 W La Veta Ave
Ste 107
Orange, CA 92868
Phone (714) 639-4901

1700 S Court St
Ste F
Visalia, CA 93277
Phone (559) 734-9244

400 W Mineral King Ave
Visalia, CA 93291
Phone (559) 624-2001

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/7431/brand/1/csg/1/fhir/r4

Organizations & group practices 13

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

View all 13

Hospital & facility affiliations 10

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1121731200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1218758400000",
    "number": "1033118336",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 14005",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928631405",
            "telephone_number": "714-571-5000",
            "fax_number": "714-571-5055"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "431 S BATAVIA ST",
            "address_2": "STE. 103",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683936",
            "telephone_number": "714-538-6731",
            "fax_number": "714-771-8369"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASOTTO",
        "first_name": "MARK",
        "middle_name": "NUNZIO",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-19",
        "last_updated": "2008-08-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A61275",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "300136609",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A612750",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD OF CA",
            "identifier": "00A612750",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CALOPTIMA",
            "identifier": "00A612750 159",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TRAILBLAZER",
            "identifier": "053304CH71589",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Orange, CA

Sources for this page

Verify at the official NPI Registry.