Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Charles S. Chen, MD, PC

Hematology & Oncology Physician in Walpole, MA · enumerated 2007 · authorized official Charles Chen, MD.

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

National Provider Identifier

1245413947

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Registry record

Entity type Organization (Type 2)

Legal business name Charles S. Chen, MD, PC

Practice address 1426 Main Street, Walpole, MA, 02081

Phone (508) 668-5060

Enumeration date Dec 17, 2007

Last updated in NPPES Dec 17, 2007

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 59676 (MA) Primary

Authorized official

Name Charles Chen

Title MD

Phone (508) 668-5060

Other identifiers

Identifier	Type	State	Issuer
M15485	Other	MA	BLUE SHIELD

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 2007-12-17. Verify at npiregistry.cms.hhs.gov.

Where is Charles S. Chen, MD, PC located?

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

Providers at this address

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Donald Gedarovich Internal Medicine Physician · Walpole, MA NPI 1194811505

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-17.