Marianne Guintu Usi, NP

Primary specialty

Gerontology Nurse PractitionerTaxonomy code 363LG0600X

License

NP95011934 Issued in CA

Practice address

401 E Highland Ave Ste 551
San Bernardino, CA 92404-3840

Phone

(909) 882-9150

Fax

(909) 883-8972

NPI assigned

Jul 28, 2023

Sex

Female

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nephrology Associates Medical Group IncGroup PAC ID 5092604447, 64 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• Nephrology Associates Medical Group Inc

  • Nephrology Physician
  • Riverside, CA
  • NPI 1447200126
  Medicare reassignment Care Compare group NPD
• Integrated Allied Medical Group

  • Family Medicine Physician
  • Burbank, CA
  • NPI 1649970740
  Medicare reassignment NPD

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

{
    "created_epoch": "1690502400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773273600000",
    "number": "1104507466",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3660 PARK SIERRA DR STE 203",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925053071",
            "telephone_number": "951-687-3400",
            "fax_number": "951-687-7630"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "401 E HIGHLAND AVE STE 551",
            "city": "SAN BERNARDINO",
            "state": "CA",
            "postal_code": "924043840",
            "telephone_number": "909-882-9150",
            "fax_number": "909-883-8972"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "USI",
        "first_name": "MARIANNE",
        "middle_name": "GUINTU",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-07-28",
        "last_updated": "2026-03-12",
        "certification_date": "2026-03-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "CA",
            "license": "NP95011934",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Janet Urieta
• Carissa N Urizar
• Melissa Kimberly Urquhart, M.D.
• US Healthcare Inc
• Nirma Usher, NP
• Eva Ussher, LVN
• Sarrine Seda Uy
• Abhay Vaidya, M.D.
• Nuttacha Vaitayavijit, LMFT
• Andrea Reynoso Valadez

• Gerontology Nurse Practitioner in San Bernardino, CA
• Providers in San Bernardino, CA by specialty
• Gerontology Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 12, 2026; 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.