Alexander Jon Trei

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

CS2100012851 Issued in DC

Practice address

3800 Reservoir Rd NW Ste M3400
Washington, DC 20007-2196

Phone

(202) 444-8161

Fax

(202) 444-4747

NPI assigned

Apr 6, 2022

Sex

Male

Sole proprietor

No

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 VA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1649203200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750896000000",
    "number": "1013658632",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3800 RESERVOIR RD NW STE M3400",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200072196",
            "telephone_number": "202-444-8161"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3800 RESERVOIR RD NW STE M3400",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200072196",
            "telephone_number": "202-444-8161",
            "fax_number": "202-444-4747"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TREI",
        "first_name": "ALEXANDER",
        "middle_name": "JON",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-06",
        "last_updated": "2025-06-26",
        "certification_date": "2025-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MD",
            "license": "D0102964",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "DC",
            "license": "CS2100012851",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tree of Life Community PCS
• Lucy Davies Treene, PA-C
• Trego Financial, Inc.
• Sahil Trehan, DDS
• John Ashhurst Treherne, DDS
• Dana Treistman, PH.D.
• Roberto Daniel Trejo
• Roxana L Trejo, RN
• Sergio Trejo Jr., MD, MPH
• Trent Home Services Inc

• Pediatrics Physician in Washington, DC
• Providers in Washington, DC by specialty
• Pediatrics Physician in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 26, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.