Gregory Spencer M.D.
About this NPIWhat this record shows.
NPI 1821127770 is registered to Gregory Spencer M.D., a Ophthalmology Physician practising at 1200 W Gonzales Rd Ste 200, Suite 200 in Oxnard, California. Ophthalmology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Gregory Spencer M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Beyond the registryWhat this record adds.
It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 4,166 Ophthalmology Physician providers on file in California.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
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.
Practitioner
- I20071231000269OphthalmologyCA
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 Gregory Spencer M.D. accepts. To confirm in-network status with your specific health plan, contact Gregory Spencer M.D. directly at (805) 983-0923.
Frequently asked
Yes. NPI 1821127770 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Ophthalmology Physician 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 (805) 983-0923.
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. Gregory Spencer M.D. is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 4,166 Ophthalmology Physician providers are registered in California, and Gregory Spencer M.D. is one of them. The figure refreshes each month from the federal source.