Robert Allen Graybill, ND

Primary specialty

NaturopathTaxonomy code 175F00000X

License

4139 Issued in OR

Practice address

1330 SE Cesar Estrada Chavez Boulevard
Portland, OR 97214-4322

Phone

(503) 232-1100

Fax

(503) 232-7751

NPI assigned

Nov 29, 2017

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/22798/brand/1/csg/1/fhir/r4
• Direct secure messaging: robert.graybill.1@22798.direct.athenahealth.com

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.

• Center for Natural Medicine, Inc

  • Multi-Specialty Clinic/Center
  • Portland, OR
  • NPI 1043317928

  Naturopath

  NPD (past)
• Vitality Natural Medicine

  • Naturopath
  • Tigard, OR
  • NPI 1811341381
  NPD (past)

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

{
    "created_epoch": "1511913600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783555200000",
    "number": "1760996631",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1330 SOUTHEAST CESAR ESTRADA CHAVEZ BLVD.",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972144322",
            "telephone_number": "503-232-1100",
            "fax_number": "503-232-7751"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1330 SE CESAR ESTRADA CHAVEZ BOULEVARD",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972144322",
            "telephone_number": "503-232-1100",
            "fax_number": "503-232-7751"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRAYBILL",
        "first_name": "ROBERT",
        "middle_name": "ALLEN",
        "name_prefix": "Dr.",
        "credential": "ND",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-11-29",
        "last_updated": "2026-07-09",
        "certification_date": "2026-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "175F00000X",
            "taxonomy_group": "",
            "desc": "Naturopath",
            "state": "OR",
            "license": "4139",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Siobhan M. Wilson Gray, M.D.
• Sorrell Jolene Gray
• Susan D. Gray, D.C.
• Sydney Margaret Gray, RN
• Jane Elizabeth Graybill
• Kellie L Graybosch, PA-C
• Hannah Erin Grayson
• Salena Shantel Grayson
• Richard Grazer, MD
• Alyssa Joelle Graziano

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 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.