Dr. Nathan Houlihan MD
About this NPIWhat this record shows.
NPI 1922799261 is registered to Dr. Nathan Houlihan MD, a Orthopaedic Surgery practising at 1500 E Medical Center Dr in Ann Arbor, Michigan. Orthopaedic Surgery is a medical specialty focused on injuries and disorders of the musculoskeletal system, including bones, joints, ligaments, tendons, and muscles. Dr. Nathan Houlihan MD has been enumerated in the National Provider Identifier (NPI) registry since 2023.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Order and Referring Only
- I20230616001306Orthopedic SurgeryMI
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Nathan Houlihan MD accepts. To confirm in-network status with your specific health plan, contact Dr. Nathan Houlihan MD directly at (630) 363-3575.
Frequently asked
Yes. NPI 1922799261 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Orthopaedic Surgery is a medical specialty focused on injuries and disorders of the musculoskeletal system, including bones, joints, ligaments, tendons, and muscles.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (630) 363-3575.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Nathan Houlihan MD is a Type-1 individual NPI.