John Muir Perinatal Medical Group
About this NPIWhat this record shows.
NPI 1558397141 is registered to John Muir Perinatal Medical Group, a healthcare organisation classified as "Maternal & Fetal Medicine" and located at 1656 N. Calfiornia Blvd., Suite 300 in Walnut Creek, California. The organisation's authorised official is M. Sorenson. The organisation has been enumerated in the 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.
Medicaid
Source: NPPES public registry.
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 Muir Perinatal Medical Group accepts. To confirm in-network status with your specific health plan, contact John Muir Perinatal Medical Group directly at (925) 941-7955.
Frequently asked
Yes. NPI 1558397141 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Maternal & Fetal Medicine is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
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 (925) 941-7955.
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 Muir Perinatal Medical Group is a Type-2 organisational NPI.