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Radiation Oncology

Richard G. Stock, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Richard G. Stock, MD is a radiation oncologist at 1 Gustave L Levy Pl, New York, NY 10029. Phone: (212) 241-6500. Accepts Medicare assignment. In 2024, Richard G. Stock had 322 Original Medicare patients and 3,136 services. NPI 1497726970. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Radiation oncologist (Medicare lists Radiation Oncology)
  • Address: 1 Gustave L Levy Pl, New York, NY 10029 · Directions
  • Phone: (212) 241‑6500
  • Medicare: Accepts Medicare assignment
  • Hospital: Mount Sinai Hospital
  • Group practice: Icahn School of Medicine at Mount Sinai
  • Medical school: Icahn School Of Medicine At Mount Sinai · graduated 1988 (38 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Richard G. Stock, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Richard G. Stock accept Medicare assignment?
Yes. Medicare's clinician data says Richard G. Stock accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Richard G. Stock see?
In 2024, CMS data shows 322 Original Medicare patients and 3,136 services for Richard G. Stock. This counts Original Medicare only and measures volume, not quality.
What is Richard G. Stock's NPI number?
1497726970. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Richard G. Stock, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients322
Services billed to Medicare3,136
Different services or procedures29
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)1,247 services
  2. Calculation of radiation therapy dose (77300)400 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)243 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)241 services
  5. Radiation treatment management, 5 treatment sessions (77427)213 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High blood pressure71%
  • Ischemic heart disease42%
  • Arthritis38%
  • Diabetes34%

Hospitals where Richard G. Stock works

Medicare's Facility Affiliation Data lists Richard G. Stock at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Mount Sinai HospitalNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330024

Practice locations

Addresses where Richard G. Stock is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Richard G. Stock as a member of this group (CMS data updated October 2, 2026).

  • Icahn School of Medicine at Mount Sinai2,843 clinicians in the group

Specialties

Find other Radiation Oncology doctors in New York →

Other radiation oncologists in New York

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

All radiation oncologists in New York →

Other clinicians in Icahn School of Medicine at Mount Sinai

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1497726970
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians