John Frey MD
About this NPIWhat this record shows.
NPI 1851312540 is registered to John Frey MD, a Pediatrics practising at 515 22nd Ave in Monroe, Wisconsin. Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21. John Frey MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 390808509· Issued by CIGNA
- 390808509· Issued by CT GENERAL
- 370004383· Issued by MEDICARE RAILROAD
- 390004890· Issued by MEDICARE RAILROAD
- 390808509A2· Issued by UNITY
- 31596200· Issued by HIRSP
- 39080850928· Issued by UNITY
- 10864· Issued by DEAN HEALTH PLAN
- 390808509· Issued by WPS
- 90002361· Issued by WEA INS
- 1000256· Issued by PHYSICIANS PLUS
Medicaid
- 31596200WI
Source: NPPES public registry.
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.
Practitioner
- I20050426001221Pediatric MedicineWI
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 John Frey MD accepts. To confirm in-network status with your specific health plan, contact John Frey MD directly at (608) 324-2000.
Frequently asked
Yes. NPI 1851312540 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21.
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 (608) 324-2000.
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. John Frey MD is a Type-1 individual NPI.