SEYED HAMID SAYAR MD
NPI 1851430862
Internal Medicine - Hematology & Oncology in Avon, IN
About Seyed Hamid Sayar Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEYED HAMID SAYAR MD (NPI 1851430862) is an individual hematology & oncology provider in Avon, Indiana, licensed in Indiana (01063818A) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Eskenazi Health, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 2
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Seyed Hamid Sayar Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Seyed Hamid Sayar reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 1,781 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 358 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 15
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Eskenazi Health
Acute Care Hospitals · Indianapolis, INIndiana University Health
Acute Care Hospitals · Indianapolis, INIu Health West Hospital
Acute Care Hospitals · Avon, INIndiana University Health Arnett Hospital
Acute Care Hospitals · Lafayette, INIndiana University Health Tipton Hospital Inc
Critical Access Hospitals · Tipton, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46123 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Seyed Hamid Sayar's NPI number?
The NPI number for Seyed Hamid Sayar is 1851430862. It was assigned to this individual provider in the NPPES registry on February 6, 2007. The provider is also known as Hamid Sayar MD.
Where is Seyed Hamid Sayar located?
Seyed Hamid Sayar practices at 1111 Ronald Reagan Pkwy, Avon, IN 46123. The listed phone number is (317) 944-0920.
What is Seyed Hamid Sayar's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Seyed Hamid Sayar enrolled in Medicare?
Yes. Seyed Hamid Sayar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Seyed Hamid Sayar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Seyed Hamid Sayar reassigns Medicare benefits to 3 organizations: Indiana University Health Care Associates, Inc (Indianapolis, IN), University Medical Diagnostic Associates, Inc. (Indianapolis, IN) and Iu Health Medical Group, LLC (Indianapolis, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Seyed Hamid Sayar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Seyed Hamid Sayar accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Seyed Hamid Sayar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Seyed Hamid Sayar affiliated with any hospitals?
According to CMS data, Seyed Hamid Sayar is affiliated with Eskenazi Health, Indiana University Health, Iu Health West Hospital, Indiana University Health Arnett Hospital and Indiana University Health Tipton Hospital Inc.
When was this NPI record last updated?
The NPPES record for Seyed Hamid Sayar was last updated on March 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Seyed Hamid Sayar, MD · NPI 1851430862
Hematology & Oncology physician in Avon, Indiana. Individual provider, active in the CMS NPPES registry since February 6, 2007.
## Identity
- **NPI:** 1851430862 (Entity type: Individual)
- **Enumerated:** February 6, 2007
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 01063818A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1111 RONALD REAGAN PKWY, Avon, IN 46123-7085
- **Phone:** (317) 944-0920 · **Fax:** (317) 968-1137
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Indiana University Health Care Associates, Inc (NPI 1902032832, Indianapolis, IN); University Medical Diagnostic Associates, Inc. (NPI 1861441537, Indianapolis, IN); Iu Health Medical Group, LLC (NPI 1326893777, Indianapolis, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** March 7, 2025
- **Other identifiers:** Medicaid 200877950 (IN); Other P00472630 (IN); Other P01550973 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1851430862) · Data from the CMS NPPES public registry.