Individual provider Active NPI

Sirinan Tazen, M.D.

  • Neurology Physician
  • Arlington, VA
National Provider Identifier
1649473794
Registry record updated Feb 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology PhysicianTaxonomy code 2084N0400X
License
0101273131 Issued in VA
Practice address
1635 N George Mason Dr Ste 420
Arlington, VA 22205-3617
Phone
(703) 536-4000
NPI assigned
Jun 7, 2007
Last updated
Feb 22, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 22, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physician 2084N0400X 0101273131 VA Primary

Addresses

Primary practice location

1635 N George Mason Dr Ste 420
Arlington, VA 22205-3617

Mailing address

1635 N George Mason Dr Ste 420
Arlington, VA 22205-3617
Phone (703) 536-4000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC
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

Enrollment IDStateProvider typePAC IDDetails
I20220816002775 DC Practitioner - Neurology 0547423584 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Neurology
Education
Other, 2006
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Northern Virginia Neurologic AssociatesGroup PAC ID 5799787586, 5 clinicians

Practice addresses (Care Compare)

1635 N George Mason Dr
Suite 420
Arlington, VA 22205-3617
Phone (703) 536-4000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
0101273131VAMDNeurology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Medical Faculty Associates, Inc CurrentSince Jul 12, 2022 Accepting new patients
Trustees of Columbia University in the City of New York Neurology Past Accepting new patients

Locations

2150 Pennsylvania Ave NW
Washington, DC 20037
Phone (202) 741-2222

900 23rd St NW
Washington, DC 20037
Phone (202) 715-4750

Interoperability endpoints

  • Direct secure messaging: stazen37679@gwmfa.direct-ci.com

Organizations & group practices 3

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

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1181174400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771718400000",
    "number": "1649473794",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1635 N GEORGE MASON DR STE 420",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222053617",
            "telephone_number": "703-536-4000",
            "fax_number": "703-527-4339"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1635 N GEORGE MASON DR STE 420",
            "city": "ARLINGTON",
            "state": "VA",
            "postal_code": "222053617",
            "telephone_number": "703-536-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TAZEN",
        "first_name": "SIRINAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-06-07",
        "last_updated": "2026-02-22",
        "certification_date": "2026-02-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "VA",
            "license": "0101273131",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Arlington, VA

Sources for this page

Verify at the official NPI Registry.