Individual provider Active NPI

Matthew Neff

  • Gastroenterology Physician
  • Nashville, TN
National Provider Identifier
1801030523
Registry record updated Oct 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
48473 Issued in TN
Practice address
330 23Rd Ave N
Suite 300
Nashville, TN 37203-1534
Phone
(615) 342-6010
Fax
(615) 342-7898
NPI assigned
Apr 24, 2009
Last updated
Oct 10, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 10, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X NU
Internal Medicine Physician 207R00000X 48473 TN
Gastroenterology Physician 207RG0100X 48473 TN Primary
Gastroenterology Physician 207RG0100X MD.206270 LA

Addresses

Primary practice location

330 23Rd Ave N
Suite 300
Nashville, TN 37203-1534

Mailing address

330 23Rd Ave N
Suite 300
Nashville, TN 37203-1534
Phone (615) 342-6010

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TN
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

Enrollment IDStateProvider typePAC IDDetails
I20120731000829 TN Practitioner - Internal Medicine 8729244074 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
East Tennessee State University Quillen College of Medicine, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

2300 Patterson St
Nashville, TN 37203-1538
Phone (615) 342-1000

2400 Patterson St
Suite 400
Nashville, TN 37203-1575
Phone (615) 342-5900

3001 Reserve Blvd
Spring Hill, TN 37174-3088
Phone (931) 489-1305

330 23Rd Ave N
Suite 400
Nashville, TN 37203-1698
Phone (615) 342-1000

5651 Frist Blvd
Suite 711
Hermitage, TN 37076-2061
Phone (615) 342-6010

5655 1St Blvd
Hermitage, TN 37076-2053
Phone (615) 342-4912

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
81.92 of 100Reported as group
Quality
70.32
Promoting interoperability
100
Improvement activities
40
Cost
69.4

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy194
Upper gastrointestinal (GI) endoscopy for acid reflux232

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
48473TNMDInternal Medicine Physician
MD.206270LAMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Columbia Medical Group - the Frist Clinic Inc CurrentSince Aug 29, 2016 Accepting new patients
Columbia Medical Group - the Frist Clinic Inc Internal Medicine CurrentSince Aug 29, 2016 Accepting new patients

Locations

5651 Frist Blvd
Ste 711
Hermitage, TN 37076
Phone (615) 342-6010

2300 Patterson St
Nashville, TN 37203
Phone (615) 342-1500

2400 Patterson St
Ste 400
Nashville, TN 37203
Phone (615) 342-5941

330 23rd Ave N
Ste 300
Nashville, TN 37203
Phone (615) 342-6010

3001 Reserve Blvd
Spring Hill, TN 37174
Phone (931) 489-1100

3001 Reserve Blvd
Ste 300
Spring Hill, TN 37174
Phone (931) 489-1100

Interoperability endpoints

  • Direct secure messaging: matthew.neff@hca1.eclinicaldirectplus.com

Organizations & group practices 2

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.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1240531200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760054400000",
    "number": "1801030523",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "330 23RD AVE N",
            "address_2": "SUITE 300",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372031534",
            "telephone_number": "615-342-6010",
            "fax_number": "615-342-7898"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "330 23RD AVE N",
            "address_2": "SUITE 300",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372031534",
            "telephone_number": "615-342-6010",
            "fax_number": "615-342-7898"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NEFF",
        "first_name": "MATTHEW",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2009-04-24",
        "last_updated": "2025-10-10",
        "certification_date": "2025-10-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TN",
            "license": "48473",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TN",
            "license": "48473",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "LA",
            "license": "MD.206270",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Nashville, TN

Sources for this page

Verify at the official NPI Registry.