Em Software LLC

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

Legal business name

EM SOFTWARE LLC

Practice address

1650 Hospital Dr Ste 200
Santa Fe, NM 87505-4788

Phone

(209) 201-9863

NPI assigned

Sep 12, 2026

Organization subpart

No

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

Authorized official

Name

Robert Mastalski II

Title

Founder

Phone

(209) 201-9863

Specialties & licenses 1

Addresses

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

{
    "created_epoch": "1789171200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1789171200000",
    "number": "1609787472",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1650 HOSPITAL DR STE 200",
            "city": "SANTA FE",
            "state": "NM",
            "postal_code": "875054788"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1650 HOSPITAL DR STE 200",
            "city": "SANTA FE",
            "state": "NM",
            "postal_code": "875054788",
            "telephone_number": "209-201-9863"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "EM SOFTWARE LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-09-12",
        "last_updated": "2026-09-12",
        "certification_date": "2026-09-12",
        "status": "A",
        "authorized_official_last_name": "MASTALSKI",
        "authorized_official_first_name": "ROBERT",
        "authorized_official_title_or_position": "FOUNDER",
        "authorized_official_telephone_number": "209-201-9863",
        "authorized_official_name_suffix": "II"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Emergency Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew L Ellis, PHARMD
• Mikiko L Ellis
• Oren Henry Ellis, MD
• Sarah Ellis, MS
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• Emergency Medicine Physician in Santa Fe, NM
• Providers in Santa Fe, NM by specialty
• Emergency Medicine Physician in New Mexico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.