Caitlyn Elizabeth Nicholas, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

26315 Issued in MD

Practice address

950 N Washington St FL 3
Alexandria, VA 22314-2398

Phone

(410) 740-8066

NPI assigned

Dec 5, 2021

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in DC, VA, MD3 enrollments

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.

Enrollment records 3

Specialty

Clinical Social Worker

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Columbia Associates in Psychiatry PCGroup PAC ID 7113165739, 127 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Columbia Associates in Psychiatry PC

  • Psychiatry Physician
  • Arlington, VA
  • NPI 1699012930

  DC, MD, Social Worker

  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1638662400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770336000000",
    "number": "1053079277",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "950 N WASHINGTON ST FL 3",
            "city": "ALEXANDRIA",
            "state": "VA",
            "postal_code": "223142398",
            "telephone_number": "410-740-8066"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "950 N WASHINGTON ST FL 3",
            "city": "ALEXANDRIA",
            "state": "VA",
            "postal_code": "223142398",
            "telephone_number": "410-740-8066"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NICHOLAS",
        "first_name": "CAITLYN",
        "middle_name": "ELIZABETH",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-12-05",
        "last_updated": "2026-02-06",
        "certification_date": "2026-02-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "VA",
            "license": "0904016360",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "MD",
            "license": "26315",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Trach N Nguyen, M.D.
• Tram-Anh Nguyen, PHARMD.
• Tuong-Van Nguyen
• Nicholas Ellyn, M.D., P.C.
• Nicholas Ellyn, M.D., P.C.
• Elizabeth Lee Dye Nichols, LPC
• Dorothy Mary Nicholson, M.D.
• Rachel M Nicholson
• Nick Medical Transport LLC
• Leah Naomi Nickens

• Clinical Social Worker in Alexandria, VA
• Providers in Alexandria, VA by specialty
• Clinical Social Worker in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.