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Hematology/Oncology

Seyed Hamid Sayar, MD

Works at hospitals in Indianapolis, IN · Lafayette, IN · Tipton, IN · Indiana

Summary

Dr. Seyed Hamid Sayar, MD is a hematologist-oncologist at 1701 N Senate Blvd, Indianapolis, IN 46202. Phone: (888) 484-3258. Accepts Medicare assignment. In 2024, Seyed Hamid Sayar had 347 Original Medicare patients and 840 services. NPI 1851430862. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Seyed Hamid Sayar, 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 Seyed Hamid Sayar accept Medicare assignment?
Yes. Medicare's clinician data says Seyed Hamid Sayar 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 Seyed Hamid Sayar see?
In 2024, CMS data shows 347 Original Medicare patients and 840 services for Seyed Hamid Sayar. This counts Original Medicare only and measures volume, not quality.
What is Seyed Hamid Sayar's NPI number?
1851430862. 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 Seyed Hamid Sayar, 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 patients347
Services billed to Medicare840
Different services or procedures19
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)206 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)187 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)121 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)73 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)69 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 cholesterol74%
  • Arthritis46%
  • Chronic kidney disease40%
  • Ischemic heart disease37%
  • Diabetes33%

Hospitals where Seyed Hamid Sayar works

Medicare's Facility Affiliation Data lists Seyed Hamid Sayar 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.

Practice locations

Addresses where Seyed Hamid Sayar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Seyed Hamid Sayar as a member of this group (CMS data updated October 2, 2026).

  • IU Health Medical Group LLC4,462 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Indiana →

Other hematologist-oncologists in Indianapolis

Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.

All hematologist-oncologists in Indianapolis →

Other clinicians in IU Health Medical Group LLC

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

Clinician information

CredentialMD
Graduation year1992 (34 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1851430862
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