John Marshall M.D.
About this NPIWhat this record shows.
NPI 1841344538 is registered to John Marshall M.D., a Obstetrics & Gynecology practising at 1000 W Carson St, Box 480 in Torrance, California. Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions. John Marshall M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2007.
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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 Marshall M.D. accepts. To confirm in-network status with your specific health plan, contact John Marshall M.D. directly at (310) 222-3591.
Frequently asked
Yes. NPI 1841344538 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Obstetricians and Gynecologists (OB/GYNs) provide medical and surgical care for the female reproductive system, including pregnancy, childbirth, and gynecologic conditions.
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 (310) 222-3591.
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 Marshall M.D. is a Type-1 individual NPI.