Mark Alan Greene

Primary specialty

Group Psychotherapy PsychologistTaxonomy code 103TP2701X

Practice address

1311 E Millard St # A2
Johnson City, TN 37601-3540

Phone

(423) 203-1615

NPI assigned

Mar 1, 2023

Last updated

Sep 29, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1677628800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1689373417",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1311 E MILLARD ST # A2",
            "city": "JOHNSON CITY",
            "state": "TN",
            "postal_code": "376013540",
            "telephone_number": "423-203-1615"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1311 E MILLARD ST # A2",
            "city": "JOHNSON CITY",
            "state": "TN",
            "postal_code": "376013540",
            "telephone_number": "423-203-1615"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENE",
        "first_name": "MARK",
        "middle_name": "ALAN",
        "name_prefix": "Mr.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-03-01",
        "last_updated": "2026-09-29",
        "certification_date": "2023-03-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TP2701X",
            "taxonomy_group": "",
            "desc": "Psychologist, Group Psychotherapy",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lisa W Green, CRNA
• Alexis Greene
• Ashley Greene
• Brenda G. Greene, RN
• Johnathan Seth Greene, CRNA
• Nicholas Edward Greene, FNP
• Sidney Andreana Greene, DO
• Winona Greene
• Denise Keyon Greenlee, NP
• Madison Rae Greenman

• Group Psychotherapy Psychologist in Johnson City, TN
• Providers in Johnson City, TN by specialty
• Group Psychotherapy Psychologist in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.