Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Charles B. Davis, M.D., Inc.

Q: What is the NPI number for Charles B. Davis, M.D., Inc.?

The NPI for Charles B. Davis, M.D., Inc. is 1992851612, a Type 2 (organization) record in the CMS NPPES registry.

Internal Medicine Physician in Cambridge, MA · enumerated 2007 · authorized official Charles Davis, Owner.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1992851612

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Registry record

Entity type Organization (Type 2)

Legal business name Charles B. Davis, M.D., Inc.

Practice address 575 Mount Auburn St, Cambridge, MA, 02138

Phone (617) 876-3315

Fax (617) 661-5995

Enumeration date Jan 26, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Charles Davis

Title Owner

Phone (617) 876-3315

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Charles B. Davis, M.D., Inc.?

The NPI for Charles B. Davis, M.D., Inc. is 1992851612, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Charles B. Davis, M.D., Inc.?

NPPES lists Charles Davis (Owner) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.