Silas Greathouse

Primary specialty

Physician AssistantTaxonomy code 363A00000X

Practice address

5125 Holy Cross Pkwy
Mishawaka, IN 46545

Phone

(574) 335-5000

NPI assigned

Sep 1, 2026

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

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1788220800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1083522825",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "223 ROOSEVELT AVE",
            "city": "MISHAWAKA",
            "state": "IN",
            "postal_code": "465443349"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5125 HOLY CROSS PKWY",
            "city": "MISHAWAKA",
            "state": "IN",
            "postal_code": "46545",
            "telephone_number": "574-335-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREATHOUSE",
        "first_name": "SILAS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-09-01",
        "last_updated": "2026-09-01",
        "certification_date": "2026-08-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael F Grantham, MD
• Kristin Grathen, RN
• Annemarie Catherine Gray, BCBA
• Christie Gray
• Candice Marie Greathouse
• Ashley Griffin
• Russell L Griffing, D.M.D.
• Andrew Ray Griffith
• Carly Grmek, PHARMD
• Rebecca Groner

• Physician Assistant in Mishawaka, IN
• Providers in Mishawaka, IN by specialty
• Physician Assistant in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.