Mallorie Gretchen Gregg, DC

Primary specialty

ChiropractorTaxonomy code 111N00000X

License

08003515A Issued in IN

Practice address

393 W US Highway 36
Rockville, IN 47872-7384

Phone

(765) 569-3440

Fax

(765) 569-3362

NPI assigned

May 15, 2025

Last updated

Jun 23, 2026By the provider in NPPES

Sex

Female

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 IN

Enrollment records 1

Specialty

Chiropractic

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Dr Larry J Russell IncGroup PAC ID 8820237845, 3 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Dr Larry J Russell Inc

  • Clinic/Center
  • Crawfordsville, IN
  • NPI 1225388044
  Medicare reassignment Care Compare group NPD
• Ferguson Chiropractic Center

  • Chiropractor
  • Rockville, IN
  • NPI 1487836177
  NPD (past)

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

{
    "created_epoch": "1747267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782172800000",
    "number": "1447041611",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "393 W US HIGHWAY 36",
            "city": "ROCKVILLE",
            "state": "IN",
            "postal_code": "478727384",
            "telephone_number": "765-569-3440",
            "fax_number": "765-569-3362"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "393 W US HIGHWAY 36",
            "city": "ROCKVILLE",
            "state": "IN",
            "postal_code": "478727384",
            "telephone_number": "765-569-3440",
            "fax_number": "765-569-3362"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREGG",
        "first_name": "MALLORIE",
        "middle_name": "GRETCHEN",
        "credential": "DC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-05-15",
        "last_updated": "2026-06-23",
        "certification_date": "2026-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "IN",
            "license": "08003515A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jon J. Ferguson, D.C.
• Kerry A Ferguson
• Taylor Nichole Forquer, FNP-C
• Joseph Adam Furr, MD
• Alyssa Gideon, MS, CCC-SLP
• Mary Ann Griffin, CPM
• Linda J Hanner, PHD HSPP MAC
• Amber Hart
• Christine Heyen, LAC
• Hook-Superx LLC (CVS Pharmacy #06688)

• Chiropractor in Rockville, IN
• Providers in Rockville, IN by specialty
• Chiropractor in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 23, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.