Jacquelyn Ashley Corvan Helmer, PHD

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY28014 Issued in CA

Practice address

5360 Jackson Dr Ste 220-C
La Mesa, CA 91942-6002

Phone

(619) 439-8479

Fax

(619) 916-2457

NPI assigned

May 5, 2018

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

Other names 1

• Dr. Jacquelyn Corvan Professional name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Opted out of Medicare

Yes, effective May 12, 2026 through May 12, 2028

Medicare enrollment (NPD)

Not 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.

• Dr John Helmer Psychologist Apc

  • Clinical Psychologist
  • La Mesa, CA
  • NPI 1457015430
  NPD (past)

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

{
    "created_epoch": "1525478400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776297600000",
    "number": "1255820221",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5360 JACKSON DR STE 220-C",
            "city": "LA MESA",
            "state": "CA",
            "postal_code": "919426002",
            "telephone_number": "619-439-8479",
            "fax_number": "619-916-2457"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5360 JACKSON DR STE 220-C",
            "city": "LA MESA",
            "state": "CA",
            "postal_code": "919426002",
            "telephone_number": "619-439-8479",
            "fax_number": "619-916-2457"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CORVAN HELMER",
        "first_name": "JACQUELYN",
        "middle_name": "ASHLEY",
        "name_prefix": "Dr.",
        "credential": "PHD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-05-05",
        "last_updated": "2026-04-16",
        "certification_date": "2026-04-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY28014",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JACQUELYN",
            "last_name": "CORVAN",
            "prefix": "DR.",
            "credential": "PHD",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

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• Clinical Psychologist in La Mesa, CA
• Providers in La Mesa, CA by specialty
• Clinical Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.