Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Timothy F. Kaiser, MD

Geriatric Medicine (Family Medicine) Physician in Burlington, MA · enumerated 2005.

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

National Provider Identifier

1649254715

Verified

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Registry record

Entity type Individual (Type 1)

Name Timothy F. Kaiser

Credential MD

Sex Male

Practice address 41 Mall Rd, Lahey Clinic, Department of Geriatrics, Burlington, MA, 01805

Phone (781) 744-2086

Fax (781) 744-5236

Enumeration date Dec 2, 2005

Last updated in NPPES Nov 16, 2010

Taxonomy & licenses

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 0101-237793 (VA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 234497 (MA) Secondary

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 234497 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
2154358	Medicaid	MA	-
110079801A	Medicaid	MA	-

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

Is NPI 1649254715 active?

Yes, as of the latest NPPES snapshot, NPI 1649254715 is active (record last updated 2010-11-16).

How do I verify Timothy Kaiser's NPI record?

Cross-check NPI 1649254715 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-16.