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Surgical Oncology

Mashaal Dhir, MD

Sees patients in Buffalo, NY · New York

Summary

Dr. Mashaal Dhir, MD is a surgical oncologist at Elm and Carlton St, Buffalo, NY 14263. Phone: (716) 845-2300. Accepts Medicare assignment. In 2024, Mashaal Dhir had 145 Original Medicare patients and 333 services. NPI 1477782100. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Surgical oncologist (Medicare lists Surgical Oncology)
  • Address: Elm and Carlton St, Buffalo, NY 14263 · Directions
  • Phone: (716) 845‑2300
  • Medicare: Accepts Medicare assignment
  • Group practice: Roswell Park Cancer Institute
  • Medical school: graduated 2007 (19 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Mashaal Dhir, 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 Mashaal Dhir accept Medicare assignment?
Yes. Medicare's clinician data says Mashaal Dhir 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 Mashaal Dhir see?
In 2024, CMS data shows 145 Original Medicare patients and 333 services for Mashaal Dhir. This counts Original Medicare only and measures volume, not quality.
What is Mashaal Dhir's NPI number?
1477782100. 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 Mashaal Dhir, 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 patients145
Services billed to Medicare333
Different services or procedures66
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)62 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)51 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)38 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)21 services
  5. Ultrasonic guidance during surgery (76998)14 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 blood pressure75%
  • High cholesterol72%
  • Arthritis42%
  • Diabetes37%
  • Anxiety30%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)30%

Practice locations

Addresses where Mashaal Dhir is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mashaal Dhir as a member of this group (CMS data updated October 2, 2026).

  • Roswell Park Cancer Institute488 clinicians in the group

Specialties

Find other Surgical Oncology doctors in New York →

Other surgical oncologists in Buffalo

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

All surgical oncologists in Buffalo →

Other clinicians in Roswell Park Cancer Institute

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

Clinician information

CredentialMD
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477782100
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 October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians