Individual provider Active NPI

Tarcisio Calibo Diaz, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • Corona, CA
National Provider Identifier
1346379583
Registry record updated Jan 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
A46295 Issued in CA
Practice address
900 S Main St
Suite 100
Corona, CA 92882-3401
Phone
(951) 738-9081
Fax
(951) 738-9081
NPI assigned
Mar 5, 2007
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 13, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207RE0101X A46295 CA Primary

Addresses

Primary practice location

900 S Main St
Suite 100
Corona, CA 92882-3401

Mailing address

900 S Main Street
Suite 100
Corona, CA 92882-3554
Phone (951) 738-9081

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20040212000530 CA Practitioner - EndocrinologyPractitioner - Internal Medicine 6406740117 Practice locations: Corona, CA

Care Compare profile

Medicare Care Compare
Specialty
EndocrinologyAlso: Internal Medicine
Education
Perelman School of Med at the University of Pennsylvania, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

900 S Main St
Corona, CA 92882-3401
Phone (951) 738-9081

Hospital & facility affiliations

  • Kinder Care Home Health, Inc. Home health agency, Wildomar, CA, CCN 757677
  • Monarch Hospice Care, Inc Hospice, Walnut, CA, CCN 921575

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of nail tissue1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Tarcisio C. Diaz, MD, a Medical Corporation Specialist Current Accepting new patients
Tarcisio C. Diaz, M.D. a Medical Corporation Single Specialty CurrentSince Jan 1, 1990 Accepting new patients
Doctors Hospital of Riverside LLC Past Accepting new patients
Uhs Corona Inc Past Accepting new patients
Riverside Healthcare System, L.P. Past Accepting new patients

Locations

900 S Main St
Ste 100
Corona, CA 92882
Phone (951) 738-8383

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: tarcisiodiaz@diaz1.allscriptsdirect.net

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Monarch Hospice Care, Inc.Walnut, CA, CCN 921575 Hospice Contracted Managing Employee Oct 22, 2025

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 5

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.

Hospital & facility affiliations 2

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": "1173052800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1736726400000",
    "number": "1346379583",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "900 S MAIN STREET",
            "address_2": "SUITE 100",
            "city": "CORONA",
            "state": "CA",
            "postal_code": "928823554",
            "telephone_number": "951-738-9081",
            "fax_number": "951-738-9081"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 S MAIN ST",
            "address_2": "SUITE 100",
            "city": "CORONA",
            "state": "CA",
            "postal_code": "928823401",
            "telephone_number": "951-738-9081",
            "fax_number": "951-738-9081"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "TARCISIO",
        "middle_name": "CALIBO",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-03-05",
        "last_updated": "2025-01-13",
        "certification_date": "2025-01-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CA",
            "license": "A46295",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Corona, CA

Sources for this page

Verify at the official NPI Registry.