NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Timothy J Eng, L.AC.

Acupuncturist in Charlestown, MA · enumerated 2012.

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

National Provider Identifier

1699040840

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Registry record

Entity type Individual (Type 1)
Name Mr. Timothy J Eng
Credential L.AC.
Sex Male
Practice address Charlestown, MA, 02129
Phone (857) 321-8567
Fax (857) 305-7090
Enumeration date Mar 20, 2012
Last updated in NPPES Jul 21, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License AC00828 (OR) Secondary
171100000X Acupuncturist Other Service Providers · License 251248 (MA) Primary
LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC 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

What is the NPI number for Timothy Eng?
The National Provider Identifier (NPI) for Timothy Eng is 1699040840, a Type 1 (individual) record in the CMS NPPES registry.
Where does Timothy Eng practice?
The practice location on file with NPPES is in Charlestown, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.