Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles B Millstein, DMD

Endodontics in Cambridge, MA · enumerated 2006.

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

National Provider Identifier

1508958190

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Registry record

Entity type Individual (Type 1)

Name Dr. Charles B Millstein

Credential DMD

Sex Male

Practice address 1648 Massachusetts Ave, # 1, Cambridge, MA, 02138

Phone (617) 876-4004

Fax (617) 984-2674

Enumeration date Sep 29, 2006

Last updated in NPPES Jun 28, 2026

Taxonomy & licenses

1223E0200X Endodontics Dental Providers · License 9719 (MA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

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 do I verify Charles Millstein's NPI record?

Cross-check NPI 1508958190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1508958190 active?

Yes, as of the latest NPPES snapshot, NPI 1508958190 is active (record last updated 2026-06-28).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-28.