Hollis W Hackman, PH.D.

Primary specialty

Counseling PsychologistTaxonomy code 103TC1900X

License

181 Issued in WY

Practice address

1898 Fort Rd
Sheridan, WY 82801-8320

Phone

(307) 672-1638

NPI assigned

Jun 13, 2006

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

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": "1150156800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1992748552",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 WILD ROSE LN",
            "city": "SHERIDAN",
            "state": "WY",
            "postal_code": "828018639",
            "telephone_number": "307-672-1638"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1898 FORT RD",
            "city": "SHERIDAN",
            "state": "WY",
            "postal_code": "828018320",
            "telephone_number": "307-672-1638"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HACKMAN",
        "first_name": "HOLLIS",
        "middle_name": "W",
        "credential": "PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-13",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC1900X",
            "taxonomy_group": "",
            "desc": "Psychologist, Counseling",
            "state": "WY",
            "license": "181",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew E Groshart, O.D.
• Stephen Fraser Groshart
• Sierra Dawn Gross, M.D.
• Matthew Aiah Grovenstein
• Taira Katherine Guyer, DDS
• Adrienne Halanick
• Andrew F Hall, MD
• Hannah Marie Hall, M.D.
• Miranda Hall
• Matthew Kenneth Hamilton, TH.D., CFT, SSN,

• All providers in Sheridan, WY
• Counseling Psychologist in Wyoming

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.