NPI Portal NPI Lookup & Verification

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

Dr. Brian Matthew Lake, D.O.

Endocrinology, Diabetes & Metabolism Physician in Largo, FL · enumerated 2007 · practices at Lake Endocrinology and Diabetes, Pllc.

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

National Provider Identifier

1295887040

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Registry record

Entity type Individual (Type 1)
Name Dr. Brian Matthew Lake
Credential D.O.
Sex Male
Practice address Largo, FL, 33773
Fax (727) 477-0498
Enumeration date Jan 18, 2007
Last updated in NPPES May 2, 2021

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OS9591 (FL) Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 1056 (SC) Secondary
207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License OS9591 (FL) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
106202000 Medicaid FL -
P00756358 Other FL RAILROAD MEDICARE PIN

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 Brian Lake's NPI record?
Cross-check NPI 1295887040 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1295887040 active?
Yes, as of the latest NPPES snapshot, NPI 1295887040 is active (record last updated 2021-05-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-02.