Individual provider Active NPI

Ian Barton May, M.D.

  • Internal Medicine Physician
  • Spokane, WA
National Provider Identifier
1790129930
Registry record updated Nov 26, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
MD60636329 Issued in WA
Practice address
624 E Front Ave
Spokane, WA 99202-2139
Phone
(509) 626-9900
Fax
(509) 227-7070
NPI assigned
Apr 18, 2013
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 26, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD60636329 WA Primary

Addresses

Primary practice location

624 E Front Ave
Spokane, WA 99202-2139

Mailing address

PO Box 31001-4114
Pasadena, CA 91110-0001
Phone (866) 747-2455

Other practice location 1

201 16th Ave E
Seattle, WA 98112-5226
Phone (206) 326-3000

Electronic endpoints 1

TypeEndpointUseAffiliation
SOAP URL https://careepicwa.kp.org:14430/Interconnect-CE-PRD/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20160509002318 WA Practitioner - Internal Medicine 1557660842 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of Washington School of Medicine, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Providence Health and Services WashingtonGroup PAC ID 0345139929, 778 clinicians

Practice addresses (Care Compare)

101 W 8TH Ave
Spokane, WA 99204-2307

1200 E Columbia Ave
Colville, WA 99114-3354
Phone (509) 684-3701

624 E Front Ave
Spokane, WA 99202-2139

Hospital & facility affiliations

  • Prov Sacred HRT Med Ctr & Childs Hosp. Hospital, Spokane, WA, CCN 500054

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Providence Health & Services Washington Internal Medicine CurrentSince Jun 15, 2016 Accepting new patients
Kaiser Foundation Health Plan of Washington CurrentSince Aug 9, 2021 Accepting new patients
Kaiser Foundation Health Plan of Washington Current Accepting new patients
Kaiser Foundation Health Plan of Washington CurrentSince Aug 9, 2021 Accepting new patients
Providence Health & Services - Wa Past Accepting new patients

Locations

1200 E Columbia Ave
Colville, WA 99114
Phone (509) 684-3701

201 16th Ave E
Seattle, WA 98112
Phone (206) 326-4545

200 15th Ave E
Seattle, WA 98112
Phone (206) 326-4530

624 E Front Ave
Spokane, WA 99202
Phone (509) 626-9900

9505 S Steele St
Tacoma, WA 98444
Phone (253) 597-6800

Organizations & group practices 5

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1366243200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764115200000",
    "number": "1790129930",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 31001-4114",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911100001",
            "telephone_number": "866-747-2455"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "624 E FRONT AVE",
            "city": "SPOKANE",
            "state": "WA",
            "postal_code": "992022139",
            "telephone_number": "509-626-9900",
            "fax_number": "509-227-7070"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "201 16th Ave E",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981125226",
            "country_code": "US",
            "telephone_number": "206-326-3000",
            "fax_number": "206-326-2785",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAY",
        "first_name": "IAN",
        "middle_name": "BARTON",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-04-18",
        "last_updated": "2025-11-26",
        "certification_date": "2025-11-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD60636329",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwa.kp.org:14430/Interconnect-CE-PRD/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "201 16th Ave E",
            "city": "Seattle",
            "state": "WA",
            "country_code": "US",
            "postal_code": "981125226",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Spokane, WA

Sources for this page

Verify at the official NPI Registry.