Mark D Sheahan, MS, CAAR, LMHC

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

LH61061856 Issued in WA

Practice address

19120 SE 34TH St Ste 201
Vancouver, WA 98683-1430

Phone

(971) 380-4283

NPI assigned

Jul 11, 2018

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in WA

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 1

Specialty

Mental Health Counselor

Education

Other, 2018

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lifestancehealth.marksheahan@148835.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 and National Provider Directory roles.

• Western Psychological and Counseling Services LLC

  • Clinical Psychologist
  • Vancouver, WA
  • NPI 1629345731

  Counselor

  Medicare reassignment NPD
• Western Psychological and Counseling Services LLC

  • Clinical Psychologist
  • Tacoma, WA
  • NPI 1912008178

  Counselor

  NPD (past)

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

{
    "created_epoch": "1531267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773360000000",
    "number": "1194201368",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19120 SE 34TH ST STE 201",
            "city": "VANCOUVER",
            "state": "WA",
            "postal_code": "986831430",
            "telephone_number": "971-380-4283"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19120 SE 34TH ST STE 201",
            "city": "VANCOUVER",
            "state": "WA",
            "postal_code": "986831430",
            "telephone_number": "971-380-4283"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SHEAHAN",
        "first_name": "MARK",
        "middle_name": "D",
        "credential": "MS, CAAR, LMHC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-07-11",
        "last_updated": "2026-03-13",
        "certification_date": "2026-03-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "WA",
            "license": "LH61061856",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2107636",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Shawn P Platt DMD PLLC
• Kathleen A Shay, PHD
• Roger P Shea, MD
• Tobias Shea
• Tim Shead, MASSAGE THERAPIST
• Debra L Shearer, LMD
• Kevin Douglas Shearer, D.C.
• Amna Shebani, D.D.S.
• Sabrina M. Sheehy, LCSW, MSW
• Sara Elizabeth Sheets, OD

• Mental Health Counselor in Vancouver, WA
• Providers in Vancouver, WA by specialty
• Mental Health Counselor in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 13, 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.