Individual provider Active NPI

Timothy Matthew Iseri, MD

  • Surgery Physician
  • Cadillac, MI
National Provider Identifier
1477554277
Registry record updated Feb 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
4301065506 Issued in MI
Practice address
927 Carmel St
Cadillac, MI 49601-2547
Phone
(231) 876-3876
Fax
(231) 775-1115
NPI assigned
Aug 3, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 20, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 4301065506 MI Primary
Surgery Physician 208600000X MD22588 OR
Surgery Physician 208600000X M7982 ID

Addresses

Primary practice location

927 Carmel St
Cadillac, MI 49601-2547

Mailing address

927 S Carmel St
Cadillac, MI 49601-2547

Other practice location 1

7665 S US 131 Hwy
Cadillac, MI 49601
Phone (231) 876-7526

Other identifiers 4

IdentifierTypeStateIssuer
288205MedicaidOR
805805300MedicaidID
020H310060OtherBCBS
4890725MedicaidMI

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address timothy.iseri@csc.eclinicaldirectplus.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
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
I20060905000345 MI Practitioner - General Surgery 5193729143 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Oregon Health Sciences University School of Medicine, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Munson Healthcare CadillacGroup PAC ID 6305161514, 104 clinicians

Practice addresses (Care Compare)

927 S Carmel St
Cadillac, MI 49601-2547
Phone (231) 876-3876

Hospital & facility affiliations

  • Munson Healthcare Cadillac Hospital Hospital, Cadillac, MI, CCN 230081

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy37
Hernia repair - groin (open)1-10
Upper gastrointestinal (GI) endoscopy for acid reflux33
Melanoma (skin cancer) excision1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
M7982IDMDSurgery Physician
4301065506MIMDSurgery Physician
MD22588ORMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Munson Healthcare Cadillac PastSince Jun 8, 2026 Accepting new patients
Munson Healthcare Cadillac Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: tiseri@direct.mhc.net

Organizations & group practices 3

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 2

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": "1123027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771545600000",
    "number": "1477554277",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "927 S CARMEL ST",
            "city": "CADILLAC",
            "state": "MI",
            "postal_code": "496012547"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "927 CARMEL ST",
            "city": "CADILLAC",
            "state": "MI",
            "postal_code": "496012547",
            "telephone_number": "231-876-3876",
            "fax_number": "231-775-1115"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "7665 S US 131 Hwy",
            "address_purpose": "LOCATION",
            "city": "Cadillac",
            "state": "MI",
            "postal_code": "49601",
            "country_code": "US",
            "telephone_number": "231-876-7526",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ISERI",
        "first_name": "TIMOTHY",
        "middle_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-03",
        "last_updated": "2026-02-20",
        "certification_date": "2026-02-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MI",
            "license": "4301065506",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "OR",
            "license": "MD22588",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "ID",
            "license": "M7982",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "288205",
            "state": "OR"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "805805300",
            "state": "ID"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "020H310060",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "4890725",
            "state": "MI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "timothy.iseri@csc.eclinicaldirectplus.com",
            "affiliation": "N",
            "address_1": "927 Carmel St",
            "city": "Cadillac",
            "state": "MI",
            "country_code": "US",
            "postal_code": "496012547",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Cadillac, MI

Sources for this page

Verify at the official NPI Registry.