Luis Guillermo Osorio

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

1023854 Issued in MA

Practice address

759 Chestnut St
Springfield, MA 01199-4720

Phone

(413) 794-0000

NPI assigned

Mar 25, 2020

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 MA

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

Medicare enrollment (NPD)

Enrolled

State licenses

Interoperability endpoints

• Direct secure messaging: luis.osorio@hca4.eclinicaldirectplus.com
• Direct secure messaging: losorio844906@direct.hfhs.org

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

{
    "created_epoch": "1585094400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753142400000",
    "number": "1013544485",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "759 CHESTNUT ST",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011991001",
            "telephone_number": "413-794-0000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "759 CHESTNUT ST",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011994720",
            "telephone_number": "413-794-0000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OSORIO",
        "first_name": "LUIS",
        "middle_name": "GUILLERMO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-25",
        "last_updated": "2025-07-22",
        "certification_date": "2025-07-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "1023854",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lois E Osetek, MS CCC A
• Alexis Osgerby
• Adyn Oshkello
• Fedeline Oslyn
• Robert Harris Osofsky, MD
• Meghan Elizabeth Osterhout
• Anthony Dean Osterman Pla, M.D.
• Britta Ostermeyer, M.D.
• Jose Alberto Ostolaza, MCSW
• Jared Ostroff, PHARM.D

• All providers in Springfield, MA
• Internal Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 22, 2025; 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.