Ralph Marcus

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

A139091 Issued in CA

Practice address

7 Aberdeen St
Irvine, CA 92620-3302

Phone

(949) 302-1362

NPI assigned

Apr 20, 2010

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Diagnostic Radiology

Education

University of California, San Francisco School of Medicine, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

St Jude Radiology Medical Group IncGroup PAC ID 7214838002, 61 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence St. Jude Medical Center Hospital, Fullerton, CA, CCN 050168
• Uci Health-Orange Hospital, Orange, CA, CCN 050348

Merit-based Incentive Payment System (MIPS)

Final score

80.79 of 100Reported as group

Quality

75.74

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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

• St Jude Radiology Medical Group Inc

  • Diagnostic Radiology Physician
  • Fullerton, CA
  • NPI 1649349705
  Medicare reassignment Care Compare group NPD
• North Oc Imaging JV, LLC

  • Radiology Clinic/Center
  • Chino Hills, CA
  • NPI 1376209940
  Medicare reassignment NPD
• North Oc Imaging JV, LLC

  • Radiology Clinic/Center
  • Irvine, CA
  • NPI 1952026643
  NPD
• St Jude Hospital Inc

  • General Acute Care Hospital
  • Fullerton, CA
  • NPI 1194926279
  NPD (past)

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

• St Jude Hospital Inc

  • General Acute Care Hospital
  • Fullerton, CA
  • NPI 1194926279
  Care Compare affiliation
• St Jude Hospital Inc

  • General Acute Care Hospital
  • Brea, CA
  • NPI 1891904942
  Care Compare affiliation
• University of California Irvine

  • Urgent Care Clinic/Center
  • Irvine, CA
  • NPI 1518739309

  Hospital

  Care Compare affiliation
• University of California Irvine

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1689608150
  Care Compare affiliation

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

{
    "created_epoch": "1271721600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750291200000",
    "number": "1346566056",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7 ABERDEEN ST",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926203302",
            "telephone_number": "949-302-1362"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7 ABERDEEN ST",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926203302",
            "telephone_number": "949-302-1362"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARCUS",
        "first_name": "RALPH",
        "name_prefix": "Dr.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-04-20",
        "last_updated": "2025-06-19",
        "certification_date": "2025-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A139091",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Meagan Marie Marcuccilli, M.D.
• Meghan J Marcum, PSYD
• Amirah Elizabeth-Monae Marcus
• Anne Marie Marcus
• Deke Marcus, PSYD
• Sandra K Marcus
• Marechek and Sagong Surgery Partnership
• Bianca Celeste Mares, RN
• Rabin Akshay Marfatia, D.D.S.
• Michelle Ortigas Mari, OTR/L

• Diagnostic Radiology Physician in Irvine, CA
• Providers in Irvine, CA by specialty
• Diagnostic Radiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.