JOSEPH E HORNYAK IV MD
NPI 1629150503
Physical Medicine & Rehabilitation in Ann Arbor, MI
About Joseph E Hornyak Iv Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH E HORNYAK IV MD (NPI 1629150503) is an individual physical medicine & rehabilitation provider in Ann Arbor, Michigan, licensed in Michigan (4301064809) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of University Of Toledo College Of Medicine (1991).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Joseph E Hornyak Iv 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 Joseph Hornyak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ann Arbor, MI 48105
- Reassigned Medicare billing, Michigan enrollment
- 2,377 clinicians in this Medicare group
Mason, MI 48854
- Reassigned Medicare billing, Michigan enrollment
- 916 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Michigan Health System
Acute Care Hospitals · Ann Arbor, MIOther Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANN ARBOR, MI 48105
ANN ARBOR, MI 48105
ANN ARBOR, MI 48105
ANN ARBOR, MI 48105
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 Joseph Hornyak's NPI number?
The NPI number for Joseph Hornyak is 1629150503. It was assigned to this individual provider in the NPPES registry on October 19, 2006.
Where is Joseph Hornyak located?
Joseph Hornyak practices at 2205 Commonwealth Blvd, Ann Arbor, MI 48105. The listed phone number is (734) 936-7175.
What is Joseph Hornyak's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Joseph Hornyak enrolled in Medicare?
Yes. Joseph Hornyak 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 Joseph Hornyak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Hornyak reassigns Medicare benefits to 2 organizations: Regents Of The University Of Michigan (Ann Arbor, MI) and Edward W. Sparrow Hospital Association (Mason, MI). 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 Joseph Hornyak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Hornyak accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Joseph Hornyak 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 Joseph Hornyak affiliated with any hospitals?
According to CMS data, Joseph Hornyak is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for Joseph Hornyak was last updated on January 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.