Dr. William Dwyer M.D.
About this NPIWhat this record shows.
NPI 1336197847 is registered to Dr. William Dwyer M.D., a Neonatal-Perinatal Medicine Physician practising at 55 Fruit St, Neonatology Unit, Fnd442,Massachusetts General Hospital in Boston, Massachusetts. Neonatal-Perinatal Medicine Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. William Dwyer M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- J26042MA· Issued by BCBS MA
- 208982MA· Issued by TUFTS HEALTH PLAN
Medicaid
- 2004763MA
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 Dr. William Dwyer M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. William Dwyer M.D. directly at (617) 726-9040.
Frequently asked
Yes. NPI 1336197847 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Neonatal-Perinatal 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 (617) 726-9040.
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. Dr. William Dwyer M.D. is a Type-1 individual NPI.