Preferred Dermatology Physician Assistant Corporation

Primary specialty

Medical Physician AssistantTaxonomy code 363AM0700X

Legal business name

PREFERRED DERMATOLOGY PHYSICIAN ASSISTANT CORPORATION

Doing business as

Hadfield Dermatology, A Physician Assistant Corporation

Practice address

475 N Forbes St Ste B
Lakeport, CA 95453-4725

Phone

(707) 606-6366

NPI assigned

Sep 4, 2026

Last updated

Oct 2, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Greg Hadfield, PHYSICIAN ASSISTANT

Title

President

Phone

(707) 606-6636

Specialties & licenses 1

Addresses

Other names 1

• Hadfield Dermatology, A Physician Assistant Corporation Doing business as

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Gregory Sean Hadfield, PA-C

  • Medical Physician Assistant
  • Lakeport, CA
  • NPI 1285869966
  NPD (past)

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

{
    "created_epoch": "1788480000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1790899200000",
    "number": "1639088594",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "40 CLEARLAKE AVE",
            "city": "LAKEPORT",
            "state": "CA",
            "postal_code": "954533817",
            "telephone_number": "760-709-1255"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "475 N FORBES ST STE B",
            "city": "LAKEPORT",
            "state": "CA",
            "postal_code": "954534725",
            "telephone_number": "707-606-6366"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PREFERRED DERMATOLOGY PHYSICIAN ASSISTANT CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-09-04",
        "last_updated": "2026-10-02",
        "certification_date": "2026-10-02",
        "status": "A",
        "authorized_official_last_name": "HADFIELD",
        "authorized_official_first_name": "GREG",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "707-606-6636",
        "authorized_official_credential": "PHYSICIAN ASSISTANT"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Hadfield Dermatology, A Physician Assistant Corporation",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Jason Krishna Pofi, LVN
• Meranda Pogroszewski
• Hope Portney
• Mary Ruth Prather
• Praxis Infectious Diseases
• Progressive Anesthesia Consultants of California
• Marlene Quilala, MD
• Gabriela Patricia Quintero Contreras
• David Eric Rauch, P.T.A.
• Vivek V Reddy, M.D.

• Medical Physician Assistant in Lakeport, CA
• Providers in Lakeport, CA by specialty
• Medical Physician Assistant in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 2, 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.