Individual provider Active NPI

Shay Seitz, PA-C

  • Physician Assistant
  • Seal Beach, CA
National Provider Identifier
1477620227
Registry record updated Dec 5, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA16043 Issued in CA
Practice address
2929 Westminster Ave Unit 4027
Seal Beach, CA 90740-9183
Phone
(714) 642-6561
Fax
(714) 642-6561
NPI assigned
Nov 29, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 5, 2024

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgical Physician Assistant 363AS0400X PA16043 CA
Physician Assistant 363A00000X PA16043 CA Primary

Addresses

Primary practice location

2929 Westminster Ave Unit 4027
Seal Beach, CA 90740-9183

Mailing address

PO Box 4027
Seal Beach, CA 90740-8027
Phone (100) 000-0000

Other practice location 1

1198 Pacific Coast Hwy Ste I
Seal Beach, CA 90740-6248
Phone (562) 799-7071

Other identifiers 1

IdentifierTypeStateIssuer
1477620227OtherCANPI

Electronic endpoints 1

TypeEndpointUseAffiliation
FHIR URL https://memorialcare.org/fhir/api/FHIR/R4/ Health Information Exchange (HIE) MemorialCare Medical Foundation

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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 1

Enrollment IDStateProvider typePAC IDDetails
I20031229000960 CA Practitioner - Physician Assistant 1456259464 Reassigns benefits to 10 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
University of Washington School of Medicine, 2001
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Healthcare Service Partners IncGroup PAC ID 0648557363, 10 clinicians
HMTS IncGroup PAC ID 1951750413, 118 clinicians
Memorialcare Medical FoundationGroup PAC ID 8729277314, 555 clinicians
Kim-Orden PCGroup PAC ID 7911344841, 2 clinicians

Practice addresses (Care Compare)

1100 W Stewart Dr
Orange, CA 92868-3849
Phone (833) 477-2677

1190 Baker St
Suite 105
Costa Mesa, CA 92626-4105
Phone (714) 477-8460

15000 Kensington Park Dr
Suite 170
Tustin, CA 92782-1836
Phone (714) 477-8300

15464 Goldenwest St
Westminster, CA 92683-6149
Phone (714) 891-9008

19582 Beach Blvd
Suite 180
Huntington Beach, CA 92648-5978
Phone (714) 477-8050

2110 N Bellflower Blvd
Long Beach, CA 90815-3126
Phone (562) 346-2222

24022 Calle de la Plata
Suite 415
Laguna Hills, CA 92653-3630
Phone (949) 988-9143

26671 Aliso Creek Rd
Suite 101
Aliso Viejo, CA 92656-4807
Phone (949) 791-3107

5341 Warner Ave
Huntington Beach, CA 92649-4078
Phone (714) 477-8450

722 Baker St
Costa Mesa, CA 92626-4320
Phone (714) 557-6300

Hospital & facility affiliations

  • Providence St. Joseph Hospital Hospital, Orange, CA, CCN 050069
  • Hoag Memorial Hospital Presbyterian Hospital, Newport Beach, CA, CCN 050224

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA16043CAMDSurgical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Healthcare Partners Affiliates Medical Group CurrentSince Aug 25, 2025 Accepting new patients
Carbon Health Medical Group of California PC CurrentSince Nov 22, 2024 Accepting new patients
Cep America - California CurrentSince Jan 1, 2015 Accepting new patients
Kim-Orden PC CurrentSince Jul 7, 2025 Accepting new patients
Bristol Park Medical Group, Inc Past Accepting new patients
Physician Assistant Specialists-California Inc Physician Assistant PastSince Oct 8, 2023 Accepting new patients

Locations

1236 N Magnolia Ave
Anaheim, CA 92801
Phone (714) 995-1000

5957 W Ramsey St
Banning, CA 92220
Phone (951) 845-8864

2910 Jefferson St
Ste 100
Carlsbad, CA 92008
Phone (760) 729-8600

824 E Carson St
Ste 104
Carson, CA 90745
Phone (310) 830-9706

17525 Ventura Blvd
Ste 210
Encino, CA 91316
Phone (818) 501-8743

14443 Culver Dr
#14443A
Irvine, CA 92604
Phone (949) 767-8173

24022 Calle de la Plata
Ste 415
Laguna Hills, CA 92653
Phone (949) 274-9621

2801 Atlantic Ave
Long Beach, CA 90806
Phone (310) 933-2000

3460 Katella Ave
Los Alamitos, CA 90720
Phone (310) 594-6599

1100 W Stewart Dr
Orange, CA 92868
Phone (714) 532-8620

15031 Rinaldi St
San Fernando, CA 91345
Phone (818) 365-8051

1198 Pacific Coast Hwy
Ste I
Seal Beach, CA 90740
Phone (562) 799-7071

2944 Tapo Canyon Rd
Ste A
Simi Valley, CA 93063
Phone (805) 306-5990

1700 N Waterman Ave
Sn Bernrdno, CA 92404
Phone (909) 883-8611

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: shay.seitz.p33@direct.monarchhealthcare.nextgenshare.com

Organizations & group practices 15

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.

View all 15

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1164758400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1733356800000",
    "number": "1477620227",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 4027",
            "city": "SEAL BEACH",
            "state": "CA",
            "postal_code": "907408027",
            "telephone_number": "100-000-0000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2929 WESTMINSTER AVE UNIT 4027",
            "city": "SEAL BEACH",
            "state": "CA",
            "postal_code": "907409183",
            "telephone_number": "714-642-6561",
            "fax_number": "714-642-6561"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1198 Pacific Coast Hwy Ste I",
            "address_purpose": "LOCATION",
            "city": "Seal Beach",
            "state": "CA",
            "postal_code": "907406248",
            "country_code": "US",
            "telephone_number": "562-799-7071",
            "fax_number": "562-799-7071",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SEITZ",
        "first_name": "SHAY",
        "name_prefix": "Mr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-29",
        "last_updated": "2024-12-05",
        "certification_date": "2024-12-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "CA",
            "license": "PA16043",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA16043",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI",
            "identifier": "1477620227",
            "state": "CA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://memorialcare.org/fhir/api/FHIR/R4/",
            "affiliation": "Y",
            "endpointDescription": "MemorialCare FHIR Endpoint",
            "affiliationName": "MemorialCare Medical Foundation",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "FHIR",
            "address_1": "17360 Brookhurst St",
            "city": "Fountain Valley",
            "state": "CA",
            "country_code": "US",
            "postal_code": "927083720",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Seal Beach, CA

Sources for this page

Verify at the official NPI Registry.