Nathan Tolley, DO

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

OP61220523 Issued in WA

Practice address

901 S 5TH St
Mount Vernon, WA 98274-3942

Phone

(360) 814-7300

Fax

(360) 848-4543

NPI assigned

May 20, 2017

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Electronic endpoints 1

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

Specialty

Psychiatry

Education

Lake Erie Col of Osteo Med at Seton Hill Univ, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Public Hospital Dist No 1 SkagitGroup PAC ID 6800793522, 321 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Skagit Valley Hospital Hospital, Mount Vernon, WA, CCN 500003

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ntolley38922@skagit.direct-ci.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.

• Public Hospital Dist No 1 Skagit

  • General Practice Physician
  • Mount Vernon, WA
  • NPI 1023332749
  Medicare reassignment Care Compare group NPD
• Public Hospital Dist No 1 Skagit

  • Anesthesiology Physician
  • Arlington, WA
  • NPI 1265791065

  Internal Medicine

  NPD
• Public Hospital Dist No 1 Skagit

  • Physical Therapist
  • Mount Vernon, WA
  • NPI 1811460652
  NPD
• Public Hospital Dist No 1 Skagit

  • General Acute Care Hospital
  • Mount Vernon, WA
  • NPI 1053357244
  NPD (past)

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

• Public Hospital Dist No 1 Skagit

  • General Acute Care Hospital
  • Mount Vernon, WA
  • NPI 1053357244
  Care Compare affiliation

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

{
    "created_epoch": "1495238400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765324800000",
    "number": "1235666389",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "901 S 5TH ST",
            "city": "MOUNT VERNON",
            "state": "WA",
            "postal_code": "982743942",
            "telephone_number": "360-814-7300",
            "fax_number": "360-848-4543"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "901 S 5TH ST",
            "city": "MOUNT VERNON",
            "state": "WA",
            "postal_code": "982743942",
            "telephone_number": "360-814-7300",
            "fax_number": "360-848-4543"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOLLEY",
        "first_name": "NATHAN",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-05-20",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CO",
            "license": "0061698",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "WA",
            "license": "OP61220523",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ntolley38922@skagit.direct-ci.com",
            "affiliation": "N",
            "endpointDescription": "Provider Direct Address",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1415 E Kincaid St",
            "city": "Mount Vernon",
            "state": "WA",
            "country_code": "US",
            "postal_code": "982744126",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Timothy J. Marker, D.D.S., P.C.
• Todd T Cooley DDS
• William W Todd, CPC
• Ryan David Toering, PA-C
• Dawnell Tokarchuk, PTA
• Marsha Janette Tomlinson, M.D.
• Jennifer J Tone, MHP
• Tonn Physio PLLC
• Kateryna Tonyuk, DDS
• Eric Toppen, O.D.

• Psychiatry Physician in Mount Vernon, WA
• Providers in Mount Vernon, WA by specialty
• Psychiatry Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 10, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.