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Radiation Oncology

Simon N. Powell, MD

Sees patients in Uniondale, NY · New York, NY · Montvale, NJ … · New York, New Jersey

Summary

Simon N. Powell, MD (Radiation Oncology) is enrolled with Medicare at 5 practice locations in Uniondale, NY, New York, NY and Montvale, NJ and other places. NPI 1487670782. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Simon N. Powell, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Radiation OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
45Years since medical school (graduated 1981)
MaleGender (as listed)

Quick answers

Where does Simon N. Powell see patients?
Medicare's clinician data lists 5 practice locations, including Uniondale, NY, New York, NY and Montvale, NJ. Call before your visit to confirm the address.
What is Simon N. Powell's specialty?
Medicare lists Radiation Oncology as the primary specialty.
Does Simon N. Powell accept Medicare assignment?
Yes. Medicare's clinician data says Simon N. Powell accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Simon N. Powell offer telehealth?
Medicare's clinician data says Simon N. Powell offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Simon N. Powell?
(516) 559-1000, as listed in official Medicare / NPI Registry data.
What is Simon N. Powell's NPI number?
1487670782. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Simon N. Powell is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Simon N. Powell as a member of these groups (CMS data updated 2026-10-02).

  • MSK Monmouth295 clinicians in the group
  • MSK Bergen255 clinicians in the group
  • Memorial Radiation Oncology Group92 clinicians in the group

Specialties

Find other Radiation Oncology doctors in New York →

Other radiation oncologists in Uniondale

Clinicians with the same Medicare primary specialty in Uniondale, NY — not a recommendation.

All radiation oncologists in Uniondale →

Clinician information

CredentialMD
Graduation year1981
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1487670782
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians