Martha Sue Klassen, PSYD, BCBA

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY29865 Issued in CA

Practice address

5212 Katella Ave Ste 104
Los Alamitos, CA 90720-6829

Phone

(714) 490-3428

Fax

(562) 493-1684

NPI assigned

Sep 7, 2012

Last updated

Mar 21, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Dr. Martha Sue Cook Klassen Other name

Medicare fee-for-service enrollment

Enrolled in CA

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

Clinical Psychologist

Education

Other, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Jodie Knott, PHD Psychological Consulting, IncGroup PAC ID 5799098885, 2 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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.

• Jodie Knott, PH.D., Psychological Consulting, Inc.

  dba Quest Psychological Solutions

  • Counseling Psychologist
  • Los Alamitos, CA
  • NPI 1063803393
  Medicare reassignment Care Compare group

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

{
    "created_epoch": "1346976000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742515200000",
    "number": "1700135548",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5212 KATELLA AVE STE 104",
            "city": "LOS ALAMITOS",
            "state": "CA",
            "postal_code": "907206829",
            "telephone_number": "714-490-3428",
            "fax_number": "562-493-1684"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5212 KATELLA AVE STE 104",
            "city": "LOS ALAMITOS",
            "state": "CA",
            "postal_code": "907206829",
            "telephone_number": "714-490-3428",
            "fax_number": "562-493-1684"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLASSEN",
        "first_name": "MARTHA",
        "middle_name": "SUE",
        "name_prefix": "Dr.",
        "credential": "PSYD, BCBA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-09-07",
        "last_updated": "2025-03-21",
        "certification_date": "2025-03-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY29865",
            "primary": true
        },
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARTHA",
            "last_name": "COOK KLASSEN",
            "middle_name": "SUE",
            "prefix": "DR.",
            "credential": "PSYD, BCBA",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Jennifer Kimiko Kimura, D.D.S.
• Kind Heart Hospice
• Laura A King, M.D.
• Kinkaid Private Nursing Care Inc.
• Joel Kizner, M.D.
• Ginger Klee, LMFT
• Joanna Jane Klee
• Jill N Klenov, RPT
• Raymond A. Klug, M.D.
• Elizabeth Jane Knego, MSW

• Clinical Psychologist in Los Alamitos, CA
• Providers in Los Alamitos, CA by specialty
• Clinical Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 21, 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.
• 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.