William D Nichols, MD

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

MD13071 Issued in OR

Practice address

9555 SW Barnes Rd
Ste 301
Portland, OR 97225-6663

Phone

(503) 297-3371

Fax

(503) 297-7975

NPI assigned

Oct 21, 2005

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1129852800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1760471775",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9555 SW BARNES RD",
            "address_2": "STE 301",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972256663",
            "telephone_number": "503-297-3371",
            "fax_number": "503-297-7975"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9555 SW BARNES RD",
            "address_2": "STE 301",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972256663",
            "telephone_number": "503-297-3371",
            "fax_number": "503-297-7975"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NICHOLS",
        "first_name": "WILLIAM",
        "middle_name": "D",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-21",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "OR",
            "license": "MD13071",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "OR",
            "license": "MD13071",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "261909",
            "state": "OR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Morgan C Nichols, DO
• Natashalei Nichols, CRM/PSS
• Rebecca K Nichols
• Sabrina Nichols
• Shannon P Nichols, RN
• Alexander Nicholson
• Brianne Nicholson, MS, CGC
• Eugene Pendleton Nicholson IV, M.D.
• Gail Jean Nicholson, MA, LPC
• Hillary A. Nicholson, MD, PHD

• Pulmonary Disease Physician in Portland, OR
• Providers in Portland, OR by specialty
• Pulmonary Disease Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.