Individual provider Active NPI

Mary8 A. Halas, PHD

  • Clinical Psychologist
  • Alexandria, VA
National Provider Identifier
1033236096
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
2126 Issued in MD
Practice address
50 S Pickett St
Suite 224
Alexandria, VA 22304-7207
Phone
(703) 823-0801
Fax
(703) 823-0802
NPI assigned
Mar 23, 2007
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Professional Counselor 101YP2500X 1198 VA
Clinical Psychologist 103TC0700X 1196 AZ
Clinical Psychologist 103TC0700X 2126 MD Primary

Addresses

Primary practice location

50 S Pickett St
Suite 224
Alexandria, VA 22304-7207

Mailing address

50 S Pickett St
Suite 224
Alexandria, VA 22304-7207
Phone (703) 823-0801

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.
Opted out of Medicare
Yes, effective Jan 1, 2013 through Jan 1, 2027

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
1198VAMDProfessional Counselor
2126MDMDPsychologist
1196AZMDClinical Psychologist

NPI Registry JSON

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

{
    "created_epoch": "1174608000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1033236096",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "50 S PICKETT ST",
            "address_2": "SUITE 224",
            "city": "ALEXANDRIA",
            "state": "VA",
            "postal_code": "223047207",
            "telephone_number": "703-823-0801",
            "fax_number": "703-823-0802"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "50 S PICKETT ST",
            "address_2": "SUITE 224",
            "city": "ALEXANDRIA",
            "state": "VA",
            "postal_code": "223047207",
            "telephone_number": "703-823-0801",
            "fax_number": "703-823-0802"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HALAS",
        "first_name": "MARY8",
        "middle_name": "A.",
        "name_prefix": "Dr.",
        "credential": "PHD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-03-23",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "VA",
            "license": "1198",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "AZ",
            "license": "1196",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "MD",
            "license": "2126",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Alexandria, VA

Sources for this page

Verify at the official NPI Registry.