Gregorio Tan, MD

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

4301067381 Issued in MI

Practice address

1722 Shaffer St
Suite 1
Kalamazoo, MI 49048-1633

Phone

(269) 381-3963

Fax

(269) 381-2809

NPI assigned

Jan 13, 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 1

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)

Education

Other, 1979

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ascension Borgess HospitalGroup PAC ID 5294645750, 41 clinicians

Ascension Medical Group PromedGroup PAC ID 7315856077, 255 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Borgess Medical Center Hospital, Kalamazoo, MI, CCN 230117
• Bronson Methodist Hospital Hospital, Kalamazoo, MI, CCN 230017
• Three Rivers Health Hospital, Three Rivers, MI, CCN 230015
• Oaklawn Hospital Hospital, Marshall, MI, CCN 230217
• Insight Hospital and Medical Center Coldwater Hospital, Coldwater, MI, CCN 230022

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gtan10814@direct.bronsonhg.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.

• Ascension Borgess Hospital

  • General Acute Care Hospital
  • Kalamazoo, MI
  • NPI 1568416311
  Medicare reassignment Care Compare group NPD
• Ascension Medical Group Promed

  • Family Medicine Physician
  • Portage, MI
  • NPI 1497709869

  Cardiovascular Disease

  Medicare reassignment Care Compare group NPD
• Ascension Borgess Hospital

  • Urgent Care Clinic/Center
  • Portage, MI
  • NPI 1417130154
  NPD
• Ascension Borgess Hospital

  • Diagnostic Radiology Physician
  • Kalamazoo, MI
  • NPI 1518753441
  NPD
• Promed Healthcare

  • Rural Health Clinic/Center
  • Plainwell, MI
  • NPI 1487708830
  NPD
• Premier Medical Care P C

  • Diagnostic Radiology Physician
  • Kalamazoo, MI
  • NPI 1487696589
  NPD (past)
• St Francis Hospital

  • Anatomic Pathology & Clinical Pathology Physician
  • Escanaba, MI
  • NPI 1932206455
  NPD (past)

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

• Ascension Borgess Hospital

  • General Acute Care Hospital
  • Kalamazoo, MI
  • NPI 1568416311
  Care Compare affiliation
• Bronson Methodist Hospital

  • General Acute Care Hospital
  • Kalamazoo, MI
  • NPI 1831116441
  Care Compare affiliation
• Community Health Center of Branch County

  • General Acute Care Hospital
  • Coldwater, MI
  • NPI 1063471639
  Care Compare affiliation
• Ella E. M. Brown Charitable Circle

  • General Acute Care Hospital
  • Marshall, MI
  • NPI 1861475360
  Care Compare affiliation
• Three Rivers Health System, Inc

  • General Acute Care Hospital
  • Three Rivers, MI
  • NPI 1568739423
  Care Compare affiliation

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

{
    "created_epoch": "1137110400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1316926751",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1722 SHAFFER ST",
            "address_2": "SUITE 1",
            "city": "KALAMAZOO",
            "state": "MI",
            "postal_code": "490481633",
            "telephone_number": "269-381-3963",
            "fax_number": "269-381-2809"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1722 SHAFFER ST",
            "address_2": "SUITE 1",
            "city": "KALAMAZOO",
            "state": "MI",
            "postal_code": "490481633",
            "telephone_number": "269-381-3963",
            "fax_number": "269-381-2809"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TAN",
        "first_name": "GREGORIO",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-13",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MI",
            "license": "4301067381",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "4387885",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mandeep Kaur Takhar, MD
• Oliver Pegheleh Takuh, PHARMD
• Mahsa Talebian, MD
• Eman Talia, MD
• Kimberly Susan Talmage, OTR
• Ramona Tan, M.D.
• Armand Bogdan Tanase, M.D.
• Rajiv Tandon, M.D.
• Hansen Ming Tang
• Laurel Linda Tangalakis, M.D.

• Cardiovascular Disease Physician in Kalamazoo, MI
• Providers in Kalamazoo, 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 Jul 13, 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.