DR. MICHAEL A HALYKO MD
NPI 1134501745
Pediatrics - Pediatric Hematology-Oncology in Iowa City, IA
About Dr. Michael A Halyko Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL A HALYKO MD (NPI 1134501745) is an individual pediatric hematology-oncology provider in Iowa City, Iowa, licensed in Iowa (MD-48780) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS and is a graduate of Southern Illinois University School Of Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Michael A Halyko 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
2Medicare enrollment records show Michael Halyko reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Iowa City, IA 52242
- Reassigned Medicare billing, Iowa enrollment
- 2,190 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 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.
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.
IOWA CITY, IA 52242
IOWA CITY, IA 52242
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 Michael Halyko's NPI number?
The NPI number for Michael Halyko is 1134501745. It was assigned to this individual provider in the NPPES registry on June 19, 2015.
Where is Michael Halyko located?
Michael Halyko practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 356-3595.
What is Michael Halyko's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Michael Halyko enrolled in Medicare?
Yes. Michael Halyko 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 Michael Halyko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Halyko reassigns Medicare benefits to 2 organizations: State University Of Iowa (Iowa City, IA) and The Medical College Of Wisconsin, Inc. (Milwaukee, WI). 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 Michael Halyko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Halyko accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Insurance Company and 2 other insurers list Michael Halyko 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.
When was this NPI record last updated?
The NPPES record for Michael Halyko was last updated on November 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Dr. Michael A Halyko, MD · NPI 1134501745
Pediatric Hematology-Oncology physician in Iowa City, Iowa. Individual provider, active in the CMS NPPES registry since June 19, 2015.
## Identity
- **NPI:** 1134501745 (Entity type: Individual)
- **Enumerated:** June 19, 2015
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** MD-48780 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 HAWKINS DR, Iowa City, IA 52242-1009
- **Phone:** (319) 356-3595 · **Fax:** (319) 356-7659
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): State University Of Iowa (NPI 1114905387, Iowa City, IA); The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern Illinois University School Of Medicine, class of 2015
## Record status
- **NPPES last updated:** November 4, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1134501745) · Data from the CMS NPPES public registry.