Margaret Hayes MD
About this NPIWhat this record shows.
NPI 1659545960 is registered to Margaret Hayes MD, a Critical Care Medicine (Internal Medicine) Physician practising at 330 Brookline Ave in Boston, Massachusetts. Critical Care Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Margaret Hayes MD has been enumerated in the National Provider Identifier (NPI) registry since 2008.
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.
Medicaid
Source: NPPES public registry.
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
- I20150918002005Pulmonary DiseaseMA
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 Margaret Hayes MD accepts. To confirm in-network status with your specific health plan, contact Margaret Hayes MD directly at (617) 667-5864.
Frequently asked
Yes. NPI 1659545960 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Critical Care Medicine (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 (617) 667-5864.
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. Margaret Hayes MD is a Type-1 individual NPI.