John S Loomis III, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

MD19850 Issued in OR

Practice address

18750 SE Stark St
Portland, OR 97233-5330

Phone

(503) 666-6717

Fax

(503) 666-6745

NPI assigned

Apr 13, 2006

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1144886400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1487618781",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 92900",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972920900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18750 SE STARK ST",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972335330",
            "telephone_number": "503-666-6717",
            "fax_number": "503-666-6745"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOOMIS",
        "first_name": "JOHN",
        "middle_name": "S",
        "name_suffix": "III",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-13",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "OR",
            "license": "MD19850",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "079939",
            "state": "OR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Isabella Lonigro
• Blair Burton Lonsberry, MS, OD, MED.
• Regan Mon Look, M.D.
• Loom Acupuncture LLC
• Barbara Plichta Loomis, LMT
• Kayla Loomis
• Marnie Loomis, N.D.
• Shayna Loomis, PMHNP
• Victoria Loomis
• Jamison Walker Loop, BSW

• Family Medicine Physician in Portland, OR
• Providers in Portland, OR by specialty
• Family Medicine 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.