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Internal Medicine

Hemanth Sasidharan Pillai, MD

Sees patients in Buffalo, NY · New York

Summary

Dr. Hemanth Sasidharan Pillai, MD is an internal medicine doctor at Elm and Carlton St, Buffalo, NY 14263. Phone: (716) 845-2300. Accepts Medicare assignment. In 2024, Hemanth Sasidharan Pillai had 252 Original Medicare patients and 636 services. NPI 1245726330. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • 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 2016 (10 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Hemanth Sasidharan Pillai, 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 Hemanth Sasidharan Pillai accept Medicare assignment?
Yes. Medicare's clinician data says Hemanth Sasidharan Pillai 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 Hemanth Sasidharan Pillai see?
In 2024, CMS data shows 252 Original Medicare patients and 636 services for Hemanth Sasidharan Pillai. This counts Original Medicare only and measures volume, not quality.
What is Hemanth Sasidharan Pillai's NPI number?
1245726330. 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 Hemanth Sasidharan Pillai, 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 patients252
Services billed to Medicare636
Different services or procedures7
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)191 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)179 services
  3. Advance care planning, first 30 minutes (99497)120 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)75 services
  5. Hospital discharge day management, more than 30 minutes (99239)54 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 cholesterol75%
  • Arthritis59%
  • Diabetes55%
  • Ischemic heart disease49%
  • Chronic kidney disease48%

Practice locations

Addresses where Hemanth Sasidharan Pillai is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hemanth Sasidharan Pillai as a member of this group (CMS data updated October 2, 2026).

  • Roswell Park Cancer Institute488 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Buffalo

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

All internal medicine doctors 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 year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1245726330
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