Allison a Holtkamp, PSYD Psychologist Inc

Primary specialty

Adult Mental Health Clinic/CenterTaxonomy code 261QM0850X

Legal business name

ALLISON A HOLTKAMP, PSYD PSYCHOLOGIST INC

Practice address

30211 Avenida de Las Bandera Ste 200
Rancho Santa Margarita, CA 92688-2159

Phone

(714) 914-7794

NPI assigned

Jun 12, 2019

Organization subpart

No

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

Authorized official

Name

Dr. Allison Anne Holtkamp, PSYDNPI 1508990227

Title

President

Phone

(714) 914-7794

Specialties & licenses 2

Addresses

Other names 1

• na Doing business as

Electronic endpoints 1

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Allison Anne Holtkamp, PSY.D.

  • Clinical Psychologist
  • Irvine, CA
  • NPI 1508990227
  NPD Authorized official

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

{
    "created_epoch": "1560297600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1787616000000",
    "number": "1629637640",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "30211 AVENIDA DE LAS BANDERA STE 200",
            "city": "RANCHO SANTA MARGARITA",
            "state": "CA",
            "postal_code": "926882159",
            "telephone_number": "714-914-7794"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "30211 AVENIDA DE LAS BANDERA STE 200",
            "city": "RANCHO SANTA MARGARITA",
            "state": "CA",
            "postal_code": "926882159",
            "telephone_number": "714-914-7794"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ALLISON A HOLTKAMP, PSYD PSYCHOLOGIST INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2019-06-12",
        "last_updated": "2026-08-25",
        "certification_date": "2026-08-25",
        "status": "A",
        "authorized_official_last_name": "HOLTKAMP",
        "authorized_official_first_name": "ALLISON",
        "authorized_official_middle_name": "ANNE",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "714-914-7794",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PSYD"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QM0850X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Adult Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aaholtkamp@icloud.com",
            "affiliation": "N",
            "endpointDescription": "work",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "all",
            "address_1": "30211 Avenida De Las Bandera Ste 200",
            "city": "Rancho Santa Margarita",
            "state": "CA",
            "country_code": "US",
            "postal_code": "926882159",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "organization_name": "na",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Kimberly Aguilar, DNP FNP-C, RN
• John Alexander Aguilera, D.D.S
• Ryan K Ah San, PA-C
• Katherine Alfieri
• Heather Allen, OTR/L
• Sarah Jane Pingol Alvidera
• Amp Sports Med Inc
• Anaheim Urgent Care, Inc
• Kathleen Marie Andersen, O.D.
• Andrea C. Huyn, OD, Inc

• Adult Mental Health Clinic/Center in Rancho Santa Margarita, CA
• Providers in Rancho Santa Margarita, CA by specialty
• Adult Mental Health Clinic/Center in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 25, 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.