Stephen E Fleming Jr., MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

226825 Issued in NY

Practice address

1275 York Ave
New York, NY 10021-6007

Phone

(646) 227-3813

NPI assigned

Jun 16, 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

Medicare fee-for-service enrollment

Enrolled in NY, NJ2 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 2

Specialty

Diagnostic Radiology

Education

Mercer University School of Medicine, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mskcc Radiology GroupGroup PAC ID 3971494683, 192 clinicians

Memorial Nuclear Medicine GroupGroup PAC ID 9638068067, 37 clinicians

Memorial Sloan Kettering Cancer Center at Basking Ridge New JerseyGroup PAC ID 0143229534, 230 clinicians

MSK BergenGroup PAC ID 1456614114, 254 clinicians

MSK MonmouthGroup PAC ID 1153619291, 300 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorial Hospital for Cancer and Allied Diseases Hospital, New York, NY, CCN 330154

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as individual

Merit-based Incentive Payment System (MIPS)

Final score

91.42 of 100Reported as group

Quality

84.03

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: sfleming36554@mskcc.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.

• Memorial Nuclear Medicine Group

  • Nuclear Medicine Physician
  • New York, NY
  • NPI 1194702282
  Medicare reassignment Care Compare group NPD
• Mskcc Radiology Group

  • Diagnostic Radiology Physician
  • New York, NY
  • NPI 1639159692
  Medicare reassignment Care Compare group NPD
• Memorial Sloan Kettering Cancer Center at Basking Ridge New Jersey

  • Medical Oncology Physician
  • Basking Ridge, NJ
  • NPI 1184637886

  Diagnostic Radiology

  Medicare reassignment Care Compare group NPD
• MSK Bergen

  • Medical Oncology Physician
  • Montvale, NJ
  • NPI 1558814657

  Diagnostic Radiology

  Medicare reassignment Care Compare group NPD
• MSK Monmouth

  • Medical Oncology Physician
  • Middletown, NJ
  • NPI 1922459163

  Diagnostic Radiology

  Medicare reassignment Care Compare group NPD
• Mskcc Regional Network

  dba MSKCC Suffolk @ Commack

  • Medical Oncology Physician
  • Commack, NY
  • NPI 1740251297

  Diagnostic Radiology

  Medicare reassignment NPD
• New York University Medical Center Faculty Practice Radiology

  • Diagnostic Radiology Physician
  • New York, NY
  • NPI 1114038353
  NPD (past)
• Atlantic Radiology Associates, LLC

  • Diagnostic Radiology Physician
  • Savannah, GA
  • NPI 1033136080
  NPD (past)

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

• Memorial Hospital for Cancer and Allied Diseases

  • General Acute Care Hospital
  • New York, NY
  • NPI 1700887411
  Care Compare affiliation
• Ralph Lauren Center for Cancer Care and Prevention

  • Special Hospital
  • New York, NY
  • NPI 1770046351
  Care Compare affiliation
• Memorial Hospital for Cancer & Allied Diseases

  • General Acute Care Hospital
  • Basking Ridge, NJ
  • NPI 1659385474
  Care Compare affiliation
• Memorial Sloan Kettering Bergen

  • General Acute Care Hospital
  • Montvale, NJ
  • NPI 1841650330
  Care Compare affiliation
• Memorial Sloan Kettering Monmouth

  • General Acute Care Hospital
  • Middletown, NJ
  • NPI 1528428521
  Care Compare affiliation

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

{
    "created_epoch": "1150416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1356386320",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "633 3RD AVE",
            "address_2": "BOX 3",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100176706"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100216007",
            "telephone_number": "646-227-3813"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FLEMING",
        "first_name": "STEPHEN",
        "middle_name": "E",
        "name_suffix": "Jr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-16",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "NY",
            "license": "226825",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mary Elizabeth Fleming, LMSW
• Megan P. Fleming, PH.D.
• Meghan Elizabeth Fleming, D.O.
• Olivia Fleming
• Sherema Fleming, RN
• Thomas John Fleming, LCSW
• Amelia P Flemming, R.D.H.
• Alexis Flen, MD, MBA
• Stacey M Flenory, FNP
• Amanda Fleres

• Diagnostic Radiology Physician in New York, NY
• Providers in New York, NY by specialty
• Diagnostic Radiology Physician in New York

• 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.