Gregory Krastein MD
About this NPIWhat this record shows.
NPI 1942358759 is registered to Gregory Krastein MD, a Nephrology Physician practising at 2103 E Gonzales Rd in Oxnard, California. Nephrology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Gregory Krastein MD has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Your brand here.
Medicare enrollment
This provider holds 2 Medicare enrollments 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
- I20041112001209Internal MedicineCA
- I20250409002090NephrologyHI
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 Krastein MD accepts. To confirm in-network status with your specific health plan, contact Gregory Krastein MD directly at (805) 822-4595.
Frequently asked
Yes. NPI 1942358759 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Nephrology 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) 822-4595.
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 Krastein MD is a Type-1 individual NPI.