Robert M Gannan, MD PHD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

16481 Issued in WA

Practice address

1135 116TH Ave NE
560
Bellevue, WA 98004-4623

Phone

(425) 454-4768

Fax

(425) 462-8021

NPI assigned

Jan 11, 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 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles

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.

• Kalamazoo Endo Center LLC

  • Certified Registered Nurse Anesthetist
  • Portage, MI
  • NPI 1790318483
  NPD (past)

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

{
    "created_epoch": "1136937600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1811976533",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1135 116TH AVE NE",
            "address_2": "560",
            "city": "BELLEVUE",
            "state": "WA",
            "postal_code": "980044623",
            "telephone_number": "425-454-4768",
            "fax_number": "425-462-8021"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1135 116TH AVE NE",
            "address_2": "560",
            "city": "BELLEVUE",
            "state": "WA",
            "postal_code": "980044623",
            "telephone_number": "425-454-4768",
            "fax_number": "425-462-8021"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GANNAN",
        "first_name": "ROBERT",
        "middle_name": "M",
        "credential": "MD PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-11",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WA",
            "license": "16481",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "L & I",
            "identifier": "96596",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1165208",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Paul E Gamman, DC
• David James Gamrath, DO
• CHI Meng Gan, M.D.
• Yanjun Gan, DDS
• Maheer Gandhavadi
• Gannon B. Stahl DDS PC
• Jennifer Charlotte Gannon, LMHCA
• Xiaoe Gao
• Yunxia Gao, OTR
• Chailah Garbarino

• Gastroenterology Physician in Bellevue, WA
• Providers in Bellevue, WA by specialty
• Gastroenterology Physician in Washington

• 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.