Marshall Clark
About this NPIWhat this record shows.
NPI 1508330747 is registered to Marshall Clark, a Critical Care Certified Respiratory Therapist practising at 4501 Sand Creek Rd in Antioch, California. Critical Care Certified Respiratory Therapist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Marshall Clark has been enumerated in the National Provider Identifier (NPI) registry since 2019.
Your brand here.
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 Marshall Clark accepts. To confirm in-network status with your specific health plan, contact Marshall Clark directly at (925) 813-6716.
Frequently asked
Yes. NPI 1508330747 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Critical Care Certified Respiratory Therapist 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) 813-6716.
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. Marshall Clark is a Type-1 individual NPI.