Michael Joseph Klein, M.D.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

288894 Issued in NY

Practice address

530 1St Ave
New York, NY 10016-6402

Phone

(212) 263-7302

Fax

(212) 263-7511

NPI assigned

Jun 10, 2011

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 1

Medicare fee-for-service enrollment

Enrolled in NY, NJ, CT3 enrollments

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 3

Specialty

General Surgery

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Nuvance Health Medical Practice CT IncGroup PAC ID 4789597691, 742 clinicians

Acute Care Surgery Medical Group IncGroup PAC ID 7214006816, 205 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Bellevue Hospital Center Hospital, New York, NY, CCN 330204
• Danbury Hospital Hospital, Danbury, CT, CCN 070033
• Garnet Health Medical Center Hospital, Middletown, NY, CCN 330126

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678

Interoperability endpoints

• Direct secure messaging: mklein220667@nyumc.direct-ci.com
• Direct secure messaging: mklein677840@nychhc.direct-ci.com

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.

• Acute Care Surgery Medical Group, Inc.

  • Surgery Physician
  • Sacramento, CA
  • NPI 1700069549

  NY

  Medicare reassignment Care Compare group NPD
• Nuvance Health Medical Practice CT, Inc.

  • Internal Medicine Physician
  • Danbury, CT
  • NPI 1407898117

  Surgery

  Medicare reassignment Care Compare group NPD
• Garnet Health Doctors PC

  • General Practice Physician
  • Middletown, NY
  • NPI 1093138851
  Medicare reassignment NPD
• New York Surgicalist Services, P.C.

  • Surgery Physician
  • Newburgh, NY
  • NPI 1720663768
  Medicare reassignment NPD
• Hospitalist Physicians of New Jersey PA

  • Hospitalist Physician
  • Edison, NJ
  • NPI 1588021851
  Medicare reassignment NPD
• New York University

  dba NYU Faculty Group Practice

  • Cardiovascular Disease Physician
  • Boynton Beach, FL
  • NPI 1285826438

  NY, Surgery

  Medicare reassignment NPD
• Garnet Health Doctors PC

  • General Practice Physician
  • Harris, NY
  • NPI 1164845699
  NPD
• New York University

  dba NYU Langone Ambulatory Care Chelsea

  • Physical Medicine & Rehabilitation Physician
  • Boynton Beach, FL
  • NPI 1104787613
  NPD
• New York City Health and Hospitals Corporation

  dba Bellevue Hospital Center

  • General Acute Care Hospital
  • New York, NY
  • NPI 1073535027
  NPD (past)
• New York City Health and Hospitals Corporation

  dba Jacobi Medical Center

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1679587679
  NPD (past)

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

• Garnet Health Medical Center

  • General Acute Care Hospital
  • Middletown, NY
  • NPI 1609875772
  Care Compare affiliation
• New York City Health and Hospitals Corporation

  dba Bellevue Hospital Center

  • General Acute Care Hospital
  • New York, NY
  • NPI 1073535027
  Care Compare affiliation
• Danbury Hospital

  • Dental Clinic/Center
  • Danbury, CT
  • NPI 1003835935

  Hospital

  Care Compare affiliation
• Danbury Hospital

  • General Acute Care Hospital
  • Danbury, CT
  • NPI 1548293343
  Care Compare affiliation

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

{
    "created_epoch": "1307664000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761782400000",
    "number": "1215222948",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "450 CLARKSON AVE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112032012",
            "telephone_number": "718-270-1000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "530 1ST AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100166402",
            "telephone_number": "212-263-7302",
            "fax_number": "212-263-7511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "707 E Main St",
            "address_purpose": "LOCATION",
            "city": "Middletown",
            "state": "NY",
            "postal_code": "109402650",
            "country_code": "US",
            "telephone_number": "845-333-7575",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "450 Clarkson Ave",
            "address_purpose": "LOCATION",
            "city": "Brooklyn",
            "state": "NY",
            "postal_code": "112032012",
            "country_code": "US",
            "telephone_number": "718-270-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KLEIN",
        "first_name": "MICHAEL",
        "middle_name": "JOSEPH",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-06-10",
        "last_updated": "2025-10-30",
        "certification_date": "2025-10-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NY",
            "license": "288894",
            "primary": true
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "NY",
            "license": "288894",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "CT",
            "license": "82911",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mklein74067@direct.garnethealth.org",
            "affiliation": "Y",
            "affiliationName": "Garnet Health Doctors PC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "707 E Main St",
            "city": "Middletown",
            "state": "NY",
            "country_code": "US",
            "postal_code": "109402650",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Margaret Susan Klein, LCSW
• Martha J Klein, LCSWR
• Matthew Klein, MD/PHD
• Michael C Klein, PH.D.
• Michael J. Klein, M.D.
• Michael Stuart Klein, D.D.S.
• Michelle A Klein, M.D.
• Michelle Lee Klein, M.D., M.S.
• Nancy Lois Klein, LCSW
• Nicole Klein, CCC-SLP

• Surgery Physician in New York, NY
• Providers in New York, NY by specialty
• Surgery Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 30, 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.