Irene Dy MD
About this NPIWhat this record shows.
NPI 1528393063 is registered to Irene Dy MD, a Hematology (Internal Medicine) Physician practising at 20055 Lake Chabot Rd Ste 130 in Castro Valley, California. Hematology (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Irene Dy MD has been enumerated in the National Provider Identifier (NPI) registry since 2009.
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
- I20170821001713Hematology/OncologyCA
- I20200814001548Hematology/OncologyWA
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 Irene Dy MD accepts. To confirm in-network status with your specific health plan, contact Irene Dy MD directly at (510) 888-0657.
Frequently asked
Yes. NPI 1528393063 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hematology (Internal Medicine) 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 (510) 888-0657.
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. Irene Dy MD is a Type-1 individual NPI.