William M Merhi, DO

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

5101014174 Issued in MI

Practice address

221 Michigan St NE Ste 300
Grand Rapids, MI 49503-2537

Phone

(616) 391-9415

NPI assigned

Feb 12, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Electronic endpoints 2

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

Specialty

Cardiovascular Disease (Cardiology)Also: Nuclear Medicine

Education

Michigan State University College of Human Medicine, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Spectrum Health Primary Care PartnersGroup PAC ID 4587568647, 2,283 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Spectrum Health Hospital, Grand Rapids, MI, CCN 230038
• Corewell Health Big Rapids Hospital Hospital, Big Rapids, MI, CCN 230093
• Corewell Health Gerber Hospital Hospital, Fremont, MI, CCN 231338
• Holland Hospital Hospital, Holland, MI, CCN 230072
• Corewell Health Ludington Hospital Hospital, Ludington, MI, CCN 230110

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wmerhi3910@epic00.corewelldirect.org
• Direct secure messaging: wmerhi3910@epic00.shdirect.org

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.

• Spectrum Health Primary Care Partners

  dba Corewell Health Medical Group West

  • Internal Medicine Physician
  • Grand Rapids, MI
  • NPI 1235188673
  Medicare reassignment Care Compare group NPD
• Spectrum Health Hospitals

  dba Corewell Health Grand Rapids Hospitals

  • Hospitalist Physician
  • Grand Rapids, MI
  • NPI 1558407189
  Medicare reassignment NPD
• Spectrum Health Hospitals

  dba Corewell Health Grand Rapids Hospital

  • General Acute Care Hospital
  • Grand Rapids, MI
  • NPI 1922090554
  NPD
• Spectrum Health Primary Care Partners

  dba Spectrum Health Medical Group CNP

  • Nurse Practitioner
  • Grand Rapids, MI
  • NPI 1346480258
  NPD
• Spectrum Health Primary Care Partners

  dba Corewell Health Medical Group West

  • Internal Medicine Physician
  • Grand Rapids, MI
  • NPI 1689499667
  NPD

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

• Holland Community Hospital

  dba Holland Hospital

  • General Acute Care Hospital
  • Holland, MI
  • NPI 1871672618
  Care Compare affiliation
• Mecosta County Medical Center

  dba Corewell Health Big Rapids Hospital

  • General Acute Care Hospital
  • Big Rapids, MI
  • NPI 1316945991
  Care Compare affiliation
• Memorial Medical Center of West Michigan

  dba Corewell Health Ludington Hospital

  • General Acute Care Hospital
  • Ludington, MI
  • NPI 1972589489
  Care Compare affiliation
• Newaygo County General Hospital Association

  dba Corewell Health Gerber Hospital

  • Critical Access Hospital
  • Fremont, MI
  • NPI 1063836963
  Care Compare affiliation
• Pennock Hospital

  dba Corewell Health Pennock Hospital

  • Critical Access Hospital
  • Hastings, MI
  • NPI 1932695525
  Care Compare affiliation
• Spectrum Health Hospitals

  dba Corewell Health Grand Rapids Hospital

  • General Acute Care Hospital
  • Grand Rapids, MI
  • NPI 1922090554
  Care Compare affiliation

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

{
    "created_epoch": "1171238400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789516800000",
    "number": "1386786044",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 MICHIGAN ST NE",
            "address_2": "MC 845",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "221 MICHIGAN ST NE STE 300",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032537",
            "telephone_number": "616-391-9415"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERHI",
        "first_name": "WILLIAM",
        "middle_name": "M",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-12",
        "last_updated": "2026-09-16",
        "certification_date": "2026-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "5101014174",
            "primary": false
        },
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "MI",
            "license": "5101014174",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MI",
            "license": "5101014174",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "100 Michigan St NE Ste 8850",
            "city": "Grand Rapids",
            "state": "MI",
            "country_code": "US",
            "postal_code": "495032560",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wmerhi3910@epic00.shdirect.org",
            "affiliation": "N",
            "address_1": "100 Michigan St NE Ste 8850",
            "city": "Grand Rapids",
            "state": "MI",
            "country_code": "US",
            "postal_code": "495032560",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Daniel Merck
• Mercy Health Partners
• Mercy Health Saint Mary's
• Mercy Health Urgent Care
• Mackenzie Meredith, LLMSW
• Ladeisha Meriweather, BEHAVIOR TECHNICIAN
• Lisa Merkiel
• Kristyn Andrea Merkle
• Marie Louise Merkx-Quinn, PT, OCS, CERT MDT
• Stella Merpi

• Cardiovascular Disease Physician in Grand Rapids, MI
• Providers in Grand Rapids, MI by specialty
• Cardiovascular Disease Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.