Margarita M. Sergonis, M.D.

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

MD448793 Issued in PA

Practice address

1631 15TH Ave W Ste 103
Seattle, WA 98119-2792

Phone

(206) 752-5634

NPI assigned

Jul 12, 2010

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in WA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Swedish Health Services

  • Internal Medicine Physician
  • Seattle, WA
  • NPI 1689612954

  Pediatrics

  Medicare reassignment NPD
• Puffin Pediatrics, PLLC

  • Primary Care Clinic/Center
  • Seattle, WA
  • NPI 1487345757
  NPD

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

{
    "created_epoch": "1278892800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762214400000",
    "number": "1790097251",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 191",
            "city": "ROCKLAND",
            "state": "DE",
            "postal_code": "197320191",
            "fax_number": "302-651-4945"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1631 15TH AVE W STE 103",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981192792",
            "telephone_number": "206-752-5634"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "747 Broadway",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981224379",
            "country_code": "US",
            "telephone_number": "206-386-2101",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SERGONIS",
        "first_name": "MARGARITA",
        "middle_name": "M.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-07-12",
        "last_updated": "2025-11-04",
        "certification_date": "2025-11-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "PA",
            "license": "MD448793",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "PA",
            "license": "MD448793",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael Seraphim
• Nancy Ann Serejch, LMP
• Serena Tham DMD PLLC
• Serenity Psychiatry
• Sierra Sergeant
• Didem Serin
• Delaney Pinion Serio, M.A., BCBA. LBA
• Camilo Serna Gomez
• Matthew Andrew Serna
• Daniel Seroussi

• Hospitalist Physician in Seattle, WA
• Providers in Seattle, WA by specialty
• Hospitalist Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 4, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.