Jeffrey Volkmann, PH.D., ABPP

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

1000660 Issued in DC

Practice address

1914 Thomes Ave Ste 2
Cheyenne, WY 82001-3527

Phone

(401) 465-6336

NPI assigned

Sep 18, 2012

Last updated

Nov 6, 2025By 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 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Philosophy

State licenses

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

{
    "created_epoch": "1347926400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762387200000",
    "number": "1205186178",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1914 THOMES AVE STE 2",
            "address_2": "#3033",
            "city": "CHEYENNE",
            "state": "WY",
            "postal_code": "820013527",
            "telephone_number": "401-465-6336"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1914 THOMES AVE STE 2",
            "city": "CHEYENNE",
            "state": "WY",
            "postal_code": "820013527",
            "telephone_number": "401-465-6336"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4101 12th St NE",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200171810",
            "country_code": "US",
            "telephone_number": "401-465-6336",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1802 Vernon St NW Ste 2327",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200091217",
            "country_code": "US",
            "telephone_number": "401-465-6336",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4001 Harewood Rd NE",
            "address_2": "105 O'Boyle Hall",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200171508",
            "country_code": "US",
            "telephone_number": "401-465-6336",
            "fax_number": "202-319-5570",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1930 18th St NW Ste B2",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200091797",
            "country_code": "US",
            "telephone_number": "401-465-6336",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2232 Dell Range Blvd",
            "address_2": "Ste 242 #5671",
            "address_purpose": "LOCATION",
            "city": "Cheyenne",
            "state": "WY",
            "postal_code": "82009",
            "country_code": "US",
            "telephone_number": "401-465-6336",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "VOLKMANN",
        "first_name": "JEFFREY",
        "name_prefix": "Dr.",
        "credential": "PH.D., ABPP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2012-09-18",
        "last_updated": "2025-11-06",
        "certification_date": "2025-11-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "VA",
            "license": "0810006729",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "DC",
            "license": "1000660",
            "primary": true
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychologist, Clinical",
            "state": "MD",
            "license": "06560",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 6, 2025; 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.