Anacleto Baizas Diaz II, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

4301088886 Issued in MI

Practice address

426 Michigan St NE
Grand Rapids, MI 49503-5609

Phone

(616) 267-8338

NPI assigned

Apr 7, 2009

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

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

Internal Medicine

Education

Other, 2002

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: adiaz78570@epic00.corewelldirect.org
• Direct secure messaging: anacleto.diaz@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
• Henry Ford Health St. John Hospital

  dba St John North Shores Hospital

  • Podiatrist
  • Harrison Township, MI
  • NPI 1043478910
  Medicare reassignment NPD
• Spectrum Health Hospitals

  dba Corewell Health Grand Rapids Hospitals

  • Hospitalist Physician
  • Grand Rapids, MI
  • NPI 1558407189

  Internal Medicine

  Medicare reassignment NPD
• Henry Ford Health St. John Hospital

  dba Henry Ford St John Hospital

  • Internal Medicine Physician
  • Detroit, MI
  • NPI 1912965088
  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 Corewell Health Medical Group West

  • Internal Medicine Physician
  • Grand Rapids, MI
  • NPI 1689499667
  NPD
• Henry Ford Health St. John Hospital

  dba St John Hospital and Medical Center

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1023088168
  NPD

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

• 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": "1239062400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750982400000",
    "number": "1922241942",
    "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": "426 MICHIGAN ST NE",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495035609",
            "telephone_number": "616-267-8338"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "ANACLETO",
        "middle_name": "BAIZAS",
        "name_prefix": "Dr.",
        "name_suffix": "II",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-04-07",
        "last_updated": "2025-06-27",
        "certification_date": "2025-06-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301088886",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "Anacleto.Diaz@epic00.shdirect.org",
            "affiliation": "N",
            "address_1": "25 Michigan St NE Ste 2100",
            "city": "Grand Rapids",
            "state": "MI",
            "country_code": "US",
            "postal_code": "495032526",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "25 Michigan St NE Ste 2100",
            "city": "Grand Rapids",
            "state": "MI",
            "country_code": "US",
            "postal_code": "495032526",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Awa Dia
• Sammy E Dia, MD
• Shawn M Dial, D.DS
• Diamond Home Care Services, Inc.
• Diane Schroeder LLPC LLC
• Awilda E Diaz
• Aydan Diaz
• Chelsey Diaz
• Diego Diaz
• Jon Charles Diaz

• Internal Medicine Physician in Grand Rapids, MI
• Providers in Grand Rapids, MI by specialty
• Internal Medicine Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 27, 2025; 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.