Thomas Sixbey, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

D0057929 Issued in MD

Practice address

1997 Annapolis Exchange Pkwy Ste 300
Annapolis, MD 21401-3273

Phone

(410) 635-1184

Fax

(410) 630-8087

NPI assigned

Jan 16, 2007

Last updated

Mar 27, 2026By the provider in NPPES

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

Enrolled in MD

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

Specialty

Psychiatry

Education

University of Pittsburgh School of Medicine, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Inspiration WellnessGroup PAC ID 5294268116, 7 clinicians

Arundel Mental Health Professionals LCGroup PAC ID 4981688173, 118 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lifestancehealth.thomassixbey@149037.advancedmd-direct.com

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.

• Arundel Mental Health Professionals L.C.

  dba LifeStance Health

  • Clinical Psychologist
  • Arnold, MD
  • NPI 1073649521
  Medicare reassignment Care Compare group NPD
• Inspiration Wellness

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Annapolis, MD
  • NPI 1225756174
  Medicare reassignment Care Compare group NPD
• Waypoint Wellness Center, LLC

  • Psychologist
  • Annapolis, MD
  • NPI 1437548237
  Medicare reassignment NPD
• Columbia Counseling Center P.a.

  • Mental Health Counselor
  • Columbia, MD
  • NPI 1578504296

  Psychiatry

  NPD
• Alice Sixbey LCSW-C LLC

  • Clinical Social Worker
  • Annapolis, MD
  • NPI 1811651300
  NPD (past)

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

{
    "created_epoch": "1168905600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774569600000",
    "number": "1205987088",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "344 THORSBY RD",
            "city": "ANNAPOLIS",
            "state": "MD",
            "postal_code": "214052012",
            "telephone_number": "443-852-5427"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1997 ANNAPOLIS EXCHANGE PKWY STE 300",
            "city": "ANNAPOLIS",
            "state": "MD",
            "postal_code": "214013273",
            "telephone_number": "410-635-1184",
            "fax_number": "410-630-8087"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8258 Veterans Hwy Ste 13",
            "address_purpose": "LOCATION",
            "city": "Millersville",
            "state": "MD",
            "postal_code": "211081564",
            "country_code": "US",
            "telephone_number": "410-768-6088",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIXBEY",
        "first_name": "THOMAS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-16",
        "last_updated": "2026-03-27",
        "certification_date": "2026-03-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MD",
            "license": "D0057929",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristin Sinning
• Akanksha Sirohi, M.D.
• Dianna Lynn Sisas, M.AC., L.AC.
• Anusha Sivalingam, SLP-CCC
• Alice A Sixbey, LCSW-C
• Leah Danielle Skinner, DO
• Alexander Skojec, M.D.
• Dana Skolnick Wizeman, LPC
• Kelleen Skoner, O.D.
• Matthew Allan Skrenta

• Psychiatry Physician in Annapolis, MD
• Providers in Annapolis, MD by specialty
• Psychiatry Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 27, 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.