Marion Phoummarath Zahn, PH.D.

Primary specialty

PsychologistTaxonomy code 103T00000X

License

34861 Issued in TX

Practice address

24044 Cinco Village Center Blvd
Suite 100
Katy, TX 77494-8432

Phone

(713) 975-1222

Fax

(888) 975-1526

NPI assigned

Mar 25, 2011

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

Practice roles

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.

• Wilcrest Counseling Services, PLLC

  • Counseling Psychologist
  • Katy, TX
  • NPI 1528456852
  NPD (past) Authorized official
• Hopebridge, LLC

  • Child & Adolescent Psychiatry Physician
  • Tucson, AZ
  • NPI 1114587110

  Psychologist

  NPD (past)

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

{
    "created_epoch": "1301011200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769472000000",
    "number": "1669771804",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24044 CINCO VILLAGE CENTER BLVD",
            "address_2": "SUITE 100",
            "city": "KATY",
            "state": "TX",
            "postal_code": "774948432",
            "telephone_number": "713-975-1222",
            "fax_number": "888-975-1526"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24044 CINCO VILLAGE CENTER BLVD",
            "address_2": "SUITE 100",
            "city": "KATY",
            "state": "TX",
            "postal_code": "774948432",
            "telephone_number": "713-975-1222",
            "fax_number": "888-975-1526"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9302 E 22nd St",
            "address_purpose": "LOCATION",
            "city": "Tucson",
            "state": "AZ",
            "postal_code": "857107342",
            "country_code": "US",
            "telephone_number": "520-278-5758",
            "fax_number": "317-520-8200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZAHN",
        "first_name": "MARION",
        "middle_name": "PHOUMMARATH",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2011-03-25",
        "last_updated": "2026-01-27",
        "certification_date": "2026-01-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": null,
            "license": "7661",
            "primary": false
        },
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "TX",
            "license": "34861",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PSYPACT APIT",
            "identifier": "7661",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mohammad Ali Zafar, MSW
• Usman Zafar, DDS
• Ohud Zagzoog, BCBA
• Adriana Maria Zaharie, DDS
• Sana Hashmi Zahiruddin, M.D.
• Martha Ali Zaidi, PA
• Syed Farhat Zaidi, M.D.
• Ali Haider Zakir, MD
• Deya Zalapa, MS CCC-SLP
• Zayeem Zaman, DO

• Psychologist in Katy, TX
• Providers in Katy, TX by specialty
• Psychologist in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 27, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.