Gustav Y Cederquist, MD, PHD

Key facts

NPI

1043846983

Entity type

Individual (NPI type 1)

Primary specialty

Radiation Oncology Physician 2085R0001X

License

336912 (NY)

Practice address

1101 Hempstead Tpke
Uniondale, NY 11553-1112

Phone

(516) 464-4513

NPI assigned

Mar 22, 2020

Sex

Male

Sole proprietor

Yes

Organizations & group practices 4

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 Radiation Oncology Group Radiation Oncology Physician · New York, NY · NPI 1235109224
  Medicare reassignment Care Compare group NPD NY · RADIATION ONCOLOGY
• Memorial Sloan Kettering Cancer Center at Basking Ridge New Jersey Medical Oncology Physician · Basking Ridge, NJ · NPI 1184637886
  Medicare reassignment Care Compare group NPD NJ · RADIATION ONCOLOGY
• MSK Bergen Medical Oncology Physician · Montvale, NJ · NPI 1558814657
  Medicare reassignment Care Compare group NPD NJ · RADIATION ONCOLOGY
• MSK Monmouth Medical Oncology Physician · Middletown, NJ · NPI 1922459163
  Medicare reassignment Care Compare group NPD NJ · RADIATION ONCOLOGY

Hospital & facility affiliations 5

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 Hospital
• Ralph Lauren Center for Cancer Care and Prevention Special Hospital · New York, NY · NPI 1770046351
  Care Compare affiliation Hospital
• Memorial Hospital for Cancer & Allied Diseases General Acute Care Hospital · Basking Ridge, NJ · NPI 1659385474
  Care Compare affiliation Hospital
• Memorial Sloan Kettering Bergen General Acute Care Hospital · Montvale, NJ · NPI 1841650330
  Care Compare affiliation Hospital
• Memorial Sloan Kettering Monmouth General Acute Care Hospital · Middletown, NJ · NPI 1528428521
  Care Compare affiliation Hospital

Medicare Care Compare profile

Specialty

Radiation Oncology

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Memorial Radiation Oncology Group (92 clinicians)
Memorial Sloan Kettering Cancer Center at Basking Ridge New Jersey (230 clinicians)
MSK Bergen (254 clinicians)
MSK Monmouth (300 clinicians)

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Medicare participation

Medicare fee-for-service enrollment

Enrolled (2 enrollments) in NY, NJ

Eligible to order & refer

Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

National Provider Directory

Medicare enrollment (NPD)

Yes

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles (4 of 8)

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: gcederquist96225@mskcc.direct-ci.com

Specialties & licenses

Addresses

The complete NPPES record for this NPI in the NPI Registry API JSON format, last updated by the provider on Aug 22, 2025.

{
    "created_epoch": "1584835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755820800000",
    "number": "1043846983",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1101 HEMPSTEAD TPKE",
            "city": "UNIONDALE",
            "state": "NY",
            "postal_code": "115531112",
            "telephone_number": "516-559-6359"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1101 HEMPSTEAD TPKE",
            "city": "UNIONDALE",
            "state": "NY",
            "postal_code": "115531112",
            "telephone_number": "516-464-4513"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1275 York Ave",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100656007",
            "country_code": "US",
            "telephone_number": "610-203-8281",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CEDERQUIST",
        "first_name": "GUSTAV",
        "middle_name": "Y",
        "name_prefix": "Dr.",
        "credential": "MD, PHD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-03-22",
        "last_updated": "2025-08-22",
        "certification_date": "2025-08-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NJ",
            "license": "25MA12725100",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NY",
            "license": "336912",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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All providers in Uniondale, NY · Radiation Oncology Physician in New York