Robert G Dionisio, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

A176855 Issued in CA

Practice address

505 Parnassus Ave FL 3
San Francisco, CA 94143-2204

Phone

(415) 353-2887

NPI assigned

Mar 29, 2019

Sex

Male

Sole proprietor

No

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 RadiologyAlso: Interventional Radiology

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Southern California Permanente Medical GroupGroup PAC ID 6002729175, shared by 4 NPIs, 11,250 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Kaiser Foundation Hospital - Los Angeles Hospital, Los Angeles, CA, CCN 050138

Merit-based Incentive Payment System (MIPS)

Final score

87.01 of 100Reported as group

Quality

86.78

Improvement activities

40

Cost

70.46

Merit-based Incentive Payment System (MIPS)

Final score

84.89 of 100Reported as group

Quality

81.13

Improvement activities

40

Cost

71.5

Merit-based Incentive Payment System (MIPS)

Final score

90.67 of 100Reported as group

Quality

84.1

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 37)

Interoperability endpoints

• Direct secure messaging: rdionisio231560@santaclaravalley.direct-ci.net

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.

• Bay Imaging Consultants Medical Group Inc

  • Diagnostic Radiology Physician
  • Walnut Creek, CA
  • NPI 1356597637
  Medicare reassignment NPD
• Magnetic Imaging Affiliates, LLC

  • Diagnostic Radiology Physician
  • Oakland, CA
  • NPI 1487040770
  Medicare reassignment NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Riverside, CA
  • NPI 1316979834
  Medicare reassignment NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Baldwin Park, CA
  • NPI 1770515280
  Medicare reassignment NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104
  Medicare reassignment NPD
• University of California San Francisco

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment NPD
• Solano Diagnostics Partners a Calif Limited Partnership

  • Diagnostic Radiology Physician
  • Fairfield, CA
  • NPI 1811940661
  Medicare reassignment
• Bay Imaging Consultants Medical Group Inc

  • Diagnostic Radiology Physician
  • Fairfield, CA
  • NPI 1548769284
  NPD
• Bay Imaging Consultants Medical Group Inc

  • Diagnostic Radiology Physician
  • Berkeley, CA
  • NPI 1871749754
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Hawthorne, CA
  • NPI 1164914115
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Santa Clarita, CA
  • NPI 1316409410
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Fontana, CA
  • NPI 1689606196
  NPD

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

• Kaiser Foundation Hospitals

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1821143777
  Care Compare affiliation

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

{
    "created_epoch": "1553817600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744934400000",
    "number": "1629539754",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "505 PARNASSUS AVE FL 3",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432204",
            "telephone_number": "415-353-2887"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "505 PARNASSUS AVE FL 3",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432204",
            "telephone_number": "415-353-2887"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIONISIO",
        "first_name": "ROBERT",
        "middle_name": "G",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-29",
        "last_updated": "2025-04-18",
        "certification_date": "2025-04-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A176855",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Suzanne Dinubile
• Dennis Diokno, M.D.
• Diokson Rena Medical Corporation
• Macy Christine Dion-Staebell
• Michelle Guadalupe Dionicio Ramos
• Ymkje Wilhelmina Johanna Dioquino, LMFT
• Amy Diorio
• Israel De Jesus Diosdado, HEALTH WORKER II
• Mary Ellen Dipaola, RD, CDE, IBCLC
• Candice Dipaolo

• Diagnostic Radiology Physician in San Francisco, CA
• Providers in San Francisco, 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 Apr 18, 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.