Cynthia Robin Greif-Neill, LMFT

Primary specialty

Marriage & Family TherapistTaxonomy code 106H00000X

License

MY23325 Issued in CA

Practice address

1844 San Miguel Dr
Suite 306a
Walnut Creek, CA 94596-4962

Phone

(510) 601-0923

Fax

(510) 658-4730

NPI assigned

Jun 4, 2006

Sex

Female

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1149379200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1497794853",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6133 HARWOOD AVE",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946181339",
            "telephone_number": "510-601-0923",
            "fax_number": "510-658-4730"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1844 SAN MIGUEL DR",
            "address_2": "SUITE 306A",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945964962",
            "telephone_number": "510-601-0923",
            "fax_number": "510-658-4730"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREIF-NEILL",
        "first_name": "CYNTHIA",
        "middle_name": "ROBIN",
        "name_prefix": "Ms.",
        "credential": "LMFT",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-04",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106H00000X",
            "taxonomy_group": "",
            "desc": "Marriage & Family Therapist",
            "state": "CA",
            "license": "MY23325",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alicia M Grefenson, PSYD, LP
• Kenneth D Gregg, LCSW
• Shelby Ann Gregg
• Aileen I. Gregorio, PHARM.D.
• Maria Gregory
• William M. Greif, MD
• Kimberly Nicole Grelli, MD
• Raveen Grewal
• Grey Pine Holdings, LLC
• Kathryn A. Grice, MD

• Marriage & Family Therapist in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Marriage & Family Therapist in California

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