Individual provider Active NPI

Sara Elizabeth Mazzoni, MD

  • Obstetrics & Gynecology Physician
  • Bethesda, MD
National Provider Identifier
1235285842
Registry record updated Apr 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
MD61051383 Issued in WA
Practice address
4701 Sangamore Rd Ste N100
Bethesda, MD 20816-2558
Phone
(914) 919-9200
NPI assigned
Jan 26, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 16, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X MD61051383 WA Primary
Maternal & Fetal Medicine Physician 207VM0101X MD61051383 WA

Addresses

Primary practice location

4701 Sangamore Rd Ste N100
Bethesda, MD 20816-2558

Mailing address

PO Box 50095
Seattle, WA 98145-5095
Phone (206) 520-5700

Other identifiers 2

IdentifierTypeStateIssuer
1235285842MedicaidWA
2157106MedicaidWA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AL, WA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20160719001157 AL Practitioner - Obstetrics/Gynecology 0941355200 Reassigns benefits to 1 organization
I20200709000914 WA Practitioner - Obstetrics/Gynecology 0941355200 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
University of Washington School of Medicine, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

325 9TH Ave
Seattle, WA 98104-2499

3600 Lind Ave SW
Suite 100 Attn Credentialing
Renton, WA 98057-4970

7347 58TH Ave NE
Seattle, WA 98115-6256

809 W Main St C
Monroe, WA 98272-2172

PO Box
Suite 50095
Seattle, WA 98145

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Valley Medical Group-Renton CurrentSince Apr 1, 2022 Accepting new patients
University of Alabama Health Services Foundation, PC. CurrentSince Aug 1, 2016 Accepting new patients
Conquer Addiction PLLC CurrentSince Nov 17, 2025 Accepting new patients
The Association of University Physicians Obstetrics & Gynecology CurrentSince Jul 1, 2020 Accepting new patients
University of Washington Past Accepting new patients

Locations

619 19th St S
Birmingham, AL 35249

619 19th St S
Birmingham, AL 35233
Phone (205) 934-6405

16850 SE 272nd St
Ste 100
Covington, WA 98042
Phone (253) 395-1971

809 W Main St
Ste C
Monroe, WA 98272
Phone (206) 552-0882

17722 Talbot Rd S
Ste 100
Renton, WA 98055
Phone (425) 228-0722

1959 NE Pacific St
Seattle, WA 98195
Phone (206) 598-4333

325 9th Ave
Seattle, WA 98104
Phone (206) 731-3000

Interoperability endpoints

  • Direct secure messaging: smazzoni497924@direct.multicare.org

Organizations & group practices 5

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.

NPI Registry JSON

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

{
    "created_epoch": "1169769600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776297600000",
    "number": "1235285842",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 50095",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981455095",
            "telephone_number": "206-520-5700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4701 SANGAMORE RD STE N100",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208162558",
            "telephone_number": "914-919-9200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAZZONI",
        "first_name": "SARA",
        "middle_name": "ELIZABETH",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-01-26",
        "last_updated": "2026-04-16",
        "certification_date": "2026-04-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WA",
            "license": "MD61051383",
            "primary": true
        },
        {
            "code": "207VM0101X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Maternal & Fetal Medicine",
            "state": "WA",
            "license": "MD61051383",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1235285842",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2157106",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Bethesda, MD

Sources for this page

Verify at the official NPI Registry.