Derek F Andrzejewski, PA-C

Primary specialty

Medical Physician AssistantTaxonomy code 363AM0700X

License

PA70082059 Issued in WA

Practice address

201 16TH Ave E
Seattle, WA 98112-5226

Phone

(206) 326-3000

Fax

(877) 515-2975

NPI assigned

Mar 12, 2020

Last updated

Mar 16, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in CA, WA2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 2

Specialty

Physician Assistant

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Allergy Care Center a Medical CorporationGroup PAC ID 8921045436, 4 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

73.77 of 100Reported as group

Quality

31.85

Promoting interoperability

98

Improvement activities

40

Cost

82.39

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Allergy Care Center a Medical Corporation

  dba Coastal Allergy Care

  • Specialist
  • Camarillo, CA
  • NPI 1396781894
  Medicare reassignment Care Compare group
• Kaiser Foundation Health Plan of Washington

  • Multi-Specialty Clinic/Center
  • Seattle, WA
  • NPI 1396810701
  Medicare reassignment

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

{
    "created_epoch": "1583971200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773619200000",
    "number": "1437785268",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "201 16TH AVE E",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981125226",
            "telephone_number": "206-326-3000",
            "fax_number": "877-515-2975"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "201 16TH AVE E",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981125226",
            "telephone_number": "206-326-3000",
            "fax_number": "877-515-2975"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2525 Erringer Rd",
            "address_purpose": "LOCATION",
            "city": "Simi Valley",
            "state": "CA",
            "postal_code": "930652352",
            "country_code": "US",
            "telephone_number": "805-527-1404",
            "fax_number": "805-527-5246",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2412 N Ponderosa Dr Ste B111",
            "address_purpose": "LOCATION",
            "city": "Camarillo",
            "state": "CA",
            "postal_code": "930102379",
            "country_code": "US",
            "telephone_number": "805-482-8989",
            "fax_number": "805-987-2855",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ANDRZEJEWSKI",
        "first_name": "DEREK",
        "middle_name": "F",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-12",
        "last_updated": "2026-03-16",
        "certification_date": "2026-03-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "PA57779",
            "primary": false
        },
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "WA",
            "license": "PA70082059",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE",
            "identifier": "57779",
            "state": "CA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://venturaortho.com/",
            "affiliation": "N",
            "address_1": "2525 Erringer Rd",
            "city": "Simi Valley",
            "state": "CA",
            "country_code": "US",
            "postal_code": "930652352",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwa.kp.org:14430/Interconnect-CE-PRD/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "201 16th Ave E",
            "city": "Seattle",
            "state": "WA",
            "country_code": "US",
            "postal_code": "981125226",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Medical Physician Assistant in Seattle, WA
• Providers in Seattle, WA by specialty
• Medical Physician Assistant in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 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; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.