Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Radiation Oncology

Jianan C. Graybill, MD

Works at hospitals in Indianapolis, IN · Kokomo, IN · Indiana

Summary

Dr. Jianan C. Graybill, MD is a radiation oncologist at 7229 Clearvista Dr, Symptom Management Group, Indianapolis, IN 46256. Phone: (317) 621-4300. Accepts Medicare assignment. In 2024, Jianan C. Graybill had 26 Original Medicare patients and 90 services. NPI 1093718579. 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: 7229 Clearvista Dr, Symptom Management Group, Indianapolis, IN 46256 · Directions (1 more location)
  • Phone: (317) 621‑4300
  • Medicare: Accepts Medicare assignment
  • Hospitals: Community Hospital East, Community Howard Regional Health Inc.
  • Group practice: Community Physicians of Indiana Inc (+1 more)
  • Medical school: University Of Chicago, Pritzker School Of Medicine · graduated 1990 (36 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jianan C. Graybill, 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 Jianan C. Graybill accept Medicare assignment?
Yes. Medicare's clinician data says Jianan C. Graybill 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 Jianan C. Graybill see?
In 2024, CMS data shows 26 Original Medicare patients and 90 services for Jianan C. Graybill. This counts Original Medicare only and measures volume, not quality.
What is Jianan C. Graybill's NPI number?
1093718579. 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 Jianan C. Graybill, 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 patients26
Services billed to Medicare90
Different services or procedures3
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Ct guidance for insertion of radiation therapy fields (77014)65 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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High cholesterol73%
  • Arthritis46%

Hospitals where Jianan C. Graybill works

Medicare's Facility Affiliation Data lists Jianan C. Graybill 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 Jianan C. Graybill is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jianan C. Graybill as a member of these groups (CMS data updated October 2, 2026).

  • Community Physicians of Indiana Inc1,565 clinicians in the group
  • Community Physician Network Specialty Care LLC267 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Indiana →

Other radiation oncologists in Indianapolis

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

All radiation oncologists in Indianapolis →

Other clinicians in Community Physicians of Indiana Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year1990 (36 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093718579
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