Individual provider Active NPI

Michael Robert Wiltrakis, D.O

  • Internal Medicine Physician
  • Wyoming, MI
National Provider Identifier
1447465349
Registry record updated Apr 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
5101016411 Issued in MI
Practice address
5900 Byron Center Ave SW
Wyoming, MI 49519-9606
Phone
(616) 252-7200
Fax
(616) 252-7830
NPI assigned
May 14, 2007
Last updated
Apr 24, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 24, 2026

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 5101016411 MI Primary

Addresses

Primary practice location

5900 Byron Center Ave SW
Wyoming, MI 49519-9606

Mailing address

5900 Byron Center Ave SW
Medical Administration
Wyoming, MI 49519-9606
Phone (616) 252-3243

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
I20080801000096 MI Practitioner - HospitalistPractitioner - Internal Medicine 1951475474 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
Michigan State University College of Osteopathic Medicine, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Metropolitan HospitalGroup PAC ID 5597651836, 421 clinicians

Practice addresses (Care Compare)

781 36TH St SE
Metro HLTH Comm Clinic
Wyoming, MI 49548-2319
Phone (616) 252-4100

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
5101016411MIMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Metropolitan Hospital Internal Medicine CurrentSince Nov 9, 2013 Accepting new patients
Metropolitan Hospital Internal Medicine CurrentSince Nov 9, 2013 Accepting new patients
Metropolitan Hospital Past Accepting new patients
Metropolitan Hospital Past Accepting new patients

Locations

4200 Division Ave N
Comstock Park, MI 49321
Phone (616) 252-1600

2215 44th St SW
Ste 100
Wyoming, MI 49519
Phone (616) 252-8300

5900 Byron Center Ave SW
Wyoming, MI 49519
Phone (616) 252-3243

5950 Metro Way SW
Wyoming, MI 49519
Phone (616) 252-8100

781 36th St SE
Wyoming, MI 49548
Phone (616) 252-4100

Interoperability endpoints

  • Direct secure messaging: mwiltrakis2400@direct.metrohealth.net

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Harbor Post Acute CenterWyoming, MI, CCN 235723 Skilled nursing facility Operational/Managerial Control
Adp of the SNF
Dec 1, 2021
Jul 23, 2025

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 3

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": "1179100800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776988800000",
    "number": "1447465349",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5900 BYRON CENTER AVE SW",
            "address_2": "MEDICAL ADMINISTRATION",
            "city": "WYOMING",
            "state": "MI",
            "postal_code": "495199606",
            "telephone_number": "616-252-3243",
            "fax_number": "616-252-0260"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5900 BYRON CENTER AVE SW",
            "city": "WYOMING",
            "state": "MI",
            "postal_code": "495199606",
            "telephone_number": "616-252-7200",
            "fax_number": "616-252-7830"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILTRAKIS",
        "first_name": "MICHAEL",
        "middle_name": "ROBERT",
        "name_prefix": "Dr.",
        "credential": "D.O",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-14",
        "last_updated": "2026-04-24",
        "certification_date": "2026-04-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "5101016411",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Wyoming, MI

Sources for this page

Verify at the official NPI Registry.