Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alfredo R Chan MD PC

Addiction Psychiatry Physician in Hanover, MA · enumerated 2007 · authorized official Alfredo Chan, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1548454671

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Registry record

Entity type Organization (Type 2)

Legal business name Alfredo R Chan MD PC

Practice address 105 Webster St Ste 6, Hanover, MA, 02339

Phone (781) 878-8200

Enumeration date Aug 31, 2007

Last updated in NPPES Aug 31, 2007

Taxonomy & classification

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alfredo Chan

Title President

Phone (781) 878-8200

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-08-31. Verify at npiregistry.cms.hhs.gov.

Where is Alfredo R Chan MD PC located?

The practice location on file with NPPES is in Hanover, MA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-31.