John Michael Chacko, DO

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

58.032281 Issued in OH

Practice address

8401 Market St
Boardman, OH 44512-6725

Phone

(469) 585-4521

NPI assigned

Apr 26, 2021

Last updated

Sep 15, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

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

Emergency Medicine

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Emergency Physician Services of New York, P.C.Group PAC ID 8325939804, 128 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Vassar Brothers Medical Center Hospital, Poughkeepsie, NY, CCN 330023

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

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.

• Emergency Physician Services of New York, P.C.

  • Emergency Medicine Physician
  • Poughkeepsie, NY
  • NPI 1093759847
  Medicare reassignment Care Compare group NPD

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

• Vassar Brothers Hospital

  • General Acute Care Hospital
  • Poughkeepsie, NY
  • NPI 1740233899
  Care Compare affiliation
• Vassar Brothers Medical Center

  dba Vassar Diagnostics

  • Clinical Medical Laboratory
  • Poughkeepsie, NY
  • NPI 1780052514

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1619395200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757894400000",
    "number": "1427630839",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1601 LAKE BLUFF DR",
            "city": "GARLAND",
            "state": "TX",
            "postal_code": "750437550",
            "telephone_number": "469-585-4521"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8401 MARKET ST",
            "city": "BOARDMAN",
            "state": "OH",
            "postal_code": "445126725",
            "telephone_number": "469-585-4521"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1044 Belmont Ave",
            "address_purpose": "LOCATION",
            "city": "Youngstown",
            "state": "OH",
            "postal_code": "445041006",
            "country_code": "US",
            "telephone_number": "469-585-4521",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "667 Eastland Ave SE",
            "address_purpose": "LOCATION",
            "city": "Warren",
            "state": "OH",
            "postal_code": "444844503",
            "country_code": "US",
            "telephone_number": "469-585-4521",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHACKO",
        "first_name": "JOHN",
        "middle_name": "MICHAEL",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-26",
        "last_updated": "2025-09-15",
        "certification_date": "2025-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "OH",
            "license": "58.032281",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "339403",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Emergency Medicine Physician in Boardman, OH
• Providers in Boardman, OH by specialty
• Emergency Medicine Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 15, 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.