Collaborative Transformations Psychology, Inc.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

Legal business name

COLLABORATIVE TRANSFORMATIONS PSYCHOLOGY, INC.

Practice address

43 Quail CT Ste 201
Walnut Creek, CA 94596-8703

Phone

(925) 954-1618

Fax

(925) 952-7022

NPI assigned

Sep 9, 2026

Organization subpart

No

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

Authorized official

Name

Dr. David L Green, PHD

Title

President / Owner

Phone

(925) 954-1618

Specialties & licenses 1

Addresses

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

{
    "created_epoch": "1788912000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1788912000000",
    "number": "1801706189",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "43 QUAIL CT STE 201",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945968703",
            "telephone_number": "925-954-1618",
            "fax_number": "925-952-7022"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "43 QUAIL CT STE 201",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945968703",
            "telephone_number": "925-954-1618",
            "fax_number": "925-952-7022"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "COLLABORATIVE TRANSFORMATIONS PSYCHOLOGY, INC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-09-09",
        "last_updated": "2026-09-09",
        "certification_date": "2026-09-09",
        "status": "A",
        "authorized_official_last_name": "GREEN",
        "authorized_official_first_name": "DAVID",
        "authorized_official_middle_name": "L",
        "authorized_official_title_or_position": "PRESIDENT / OWNER",
        "authorized_official_telephone_number": "925-954-1618",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PHD"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brett James Coleman, CRNA
• Cayla Coleman
• Lauren Coll
• Collab Fertility Medical, Inc.
• Collaborative Transformations Psychology, Inc.
• Michele Alison Collier, MD
• Justin Collingham, M.D.
• George Nason Collins II, MA
• Missiah Collins
• Claudia Colombany

• Clinical Psychologist in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Clinical Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.