Rex Ambatali Jr., AGACNP-BC, PMHNP-BC

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

95001863 Issued in CA

Practice address

4301 X St
Sacramento, CA 95817-2214

Phone

(916) 734-2011

NPI assigned

Feb 6, 2015

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

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, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the Univ of CaGroup PAC ID 3375456619, 1,571 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of California Davis Medical Center Hospital, Sacramento, CA, CCN 050599

Merit-based Incentive Payment System (MIPS)

Final score

83.15 of 100Reported as group

Quality

64.8

Promoting interoperability

100

Improvement activities

40

Cost

68.65

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/JDABCA

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.

• Regents of the Univ of Ca

  • Maternal & Fetal Medicine Physician
  • Sacramento, CA
  • NPI 1013906973

  CA

  Medicare reassignment Care Compare group NPD
• Manshadi Heart Institute Inc

  • Interventional Cardiology Physician
  • Stockton, CA
  • NPI 1225380603

  CA

  Medicare reassignment NPD
• Regents of the Univ of Ca

  • Diagnostic Radiology Physician
  • Sacramento, CA
  • NPI 1477546406
  Care Compare group NPD
• Regents of the University of Ca

  • Pediatric Critical Care Medicine Physician
  • Sacramento, CA
  • NPI 1104815067
  NPD
• Regents of the Univ of Ca

  • Surgery Physician
  • Sacramento, CA
  • NPI 1427041698
  NPD (past)
• Regents of the Univ of Ca

  • Pulmonary Disease Physician
  • Sacramento, CA
  • NPI 1437142692
  NPD (past)

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

• Regents of the University of California

  • General Acute Care Hospital
  • Sacramento, CA
  • NPI 1710918545

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1423180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788912000000",
    "number": "1013308485",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4301 X ST",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958172214",
            "telephone_number": "916-734-7463"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4301 X ST",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958172214",
            "telephone_number": "916-734-2011"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AMBATALI JR.",
        "first_name": "REX",
        "credential": "AGACNP-BC, PMHNP-BC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-02-06",
        "last_updated": "2026-09-09",
        "certification_date": "2026-09-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "CA",
            "license": "95001863",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "95001863",
            "primary": false
        },
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "CA",
            "license": "95001863",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ann Butler Amato, LCSW
• Brandon William Amato
• Cecily M Amato, PHARM D
• Chloe Adrianna Ambalong, PA
• Ambassadore Health Care-Sacramento, Inc.
• Ambience Home Health Care
• Tara Amble, C.N.A
• Melissa Ambris
• Prerna Ambrish
• Alondra Ambriz, MASTERS OF SCIENCE

• All providers in Sacramento, CA
• Acute Care Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 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.