Martha Niebe Tomas Sierra

Primary specialty

DoulaTaxonomy code 374J00000X

License

112647 Issued in OR

Practice address

2800 N Vancouver Ave
Portland, OR 97227-1630

Phone

(503) 413-4500

NPI assigned

Sep 6, 2024

Last updated

Jul 14, 2026By the provider in NPPES

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1725580800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783987200000",
    "number": "1790510980",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1440 NE 223RD AVE UNIT 38",
            "city": "WOOD VILLAGE",
            "state": "OR",
            "postal_code": "970602625",
            "telephone_number": "971-227-9547"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2800 N VANCOUVER AVE",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972271630",
            "telephone_number": "503-413-4500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2801 N Gantenbein Ave",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972271623",
            "country_code": "US",
            "telephone_number": "503-276-6500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9205 SW Barnes Rd",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972256603",
            "country_code": "US",
            "telephone_number": "503-216-1234",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TOMAS SIERRA",
        "first_name": "MARTHA",
        "middle_name": "NIEBE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-09-06",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "374J00000X",
            "taxonomy_group": "",
            "desc": "Doula",
            "state": "OR",
            "license": "112647",
            "primary": true
        },
        {
            "code": "374J00000X",
            "taxonomy_group": "",
            "desc": "Doula",
            "state": "OR",
            "license": "6928221",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Melissa Kay Tomac
• Janelle Marie S. Tomagan
• Mario J Tomaino, D.C.
• Stephanie Zoe Ladouceur Toman, FNP-BC
• Amanda L Tomanek, MD
• Nicole Tomasa
• Amanda Jean Tomasek, LPC-A
• Karlie Ireene Tombaugh Dinges, N/A
• Chaylea Tome
• Melissa Tomecek, QMHP

• Doula in Portland, OR
• Providers in Portland, OR by specialty
• Doula in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 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.