Thomas Robert Calkins, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

A77312 Issued in CA

Practice address

751 Medical Center Court
Chula Vista, CA 91911-6699

Phone

(619) 482-5800

NPI assigned

May 9, 2006

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, ID2 enrollments

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 2

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.

• Mission Viejo Emergency Medical Associates

  • Emergency Medicine Physician
  • Mission Viejo, CA
  • NPI 1073542916
  Medicare reassignment NPD
• Mission Viejo Emergency Medical Associates, Inc.

  • Emergency Medicine Physician
  • Laguna Beach, CA
  • NPI 1134355597
  Medicare reassignment NPD
• Teton Valley Health Care Inc

  • Critical Access Hospital
  • Driggs, ID
  • NPI 1477809622
  Medicare reassignment NPD
• MD Solutions Medical Corp

  • Dermatology Physician
  • Sherman Oaks, CA
  • NPI 1902837735
  NPD (past)
• Medical Imaging Associates of Idaho Falls, Inc

  • Diagnostic Radiology Physician
  • Pocatello, ID
  • NPI 1740225531
  NPD (past)

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

{
    "created_epoch": "1147132800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1720037518",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 POWELL ST",
            "address_2": "SUITE 920",
            "city": "EMERYVILLE",
            "state": "CA",
            "postal_code": "946081803",
            "telephone_number": "510-350-2600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "751 MEDICAL CENTER COURT",
            "city": "CHULA VISTA",
            "state": "CA",
            "postal_code": "919116699",
            "telephone_number": "619-482-5800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALKINS",
        "first_name": "THOMAS",
        "middle_name": "ROBERT",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-09",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A77312",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Calicarehealth LLC
• California Center of Reproductive Medicine
• California Emergency Physicians Med GRP
• California Medical Injury & Rehabilitation Physicians Inc
• California Retina Associates, LP
• Bryanna Kieli Callahan, LCSW
• Sadie Marie Callanan
• Vanessa Callanta
• James Callaway
• Carlynne Rivera Calleros, FNP-BC

• Emergency Medicine Physician in Chula Vista, CA
• Providers in Chula Vista, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.