William Brown
About this NPIWhat this record shows.
NPI 1841177714 is registered to William Brown, a Physical Therapist practising at 99 4th St Ste 102 in Chelsea, Massachusetts. Physical Therapist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Brown has been enumerated in the National Provider Identifier (NPI) registry since 2025.
Beyond the registryWhat this record adds.
It is enrolled in Medicare, linking to 1 PECOS enrollment record (with a public Medicare Enrollment ID) sourced from CMS, which the NPPES registry does not list. Within the directory it is one of 7,635 Physical Therapist providers on file in Massachusetts.
Source: CMS NPPES and PECOS public files. snapshot, refreshed monthly.
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
- I20250904001092Physical Therapist in Private PracticeMA
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 Brown accepts. To confirm in-network status with your specific health plan, contact William Brown directly at (617) 889-2500.
Frequently asked
Yes. NPI 1841177714 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Physical Therapist 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) 889-2500.
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 Brown is a Type-1 individual NPI.
As of the latest monthly CMS NPPES snapshot, 7,635 Physical Therapist providers are registered in Massachusetts, and William Brown is one of them. The figure refreshes each month from the federal source.