William Shirer M.D.
About this NPIWhat this record shows.
NPI 1912438854 is registered to William Shirer M.D., a Anesthesiology practising at 250 Hospital Pkwy in San Jose, California. Anesthesiology is the medical specialty concerned with the perioperative care of patients before, during, and after surgery, including pain management. William Shirer M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2017.
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
- I20210615000665AnesthesiologyCA
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 William Shirer M.D. accepts. To confirm in-network status with your specific health plan, contact William Shirer M.D. directly at (408) 972-3000.
Frequently asked
Yes. NPI 1912438854 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Anesthesiology is the medical specialty concerned with the perioperative care of patients before, during, and after surgery, including pain management.
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 (408) 972-3000.
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. William Shirer M.D. is a Type-1 individual NPI.