Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William S Mcpherson, RT

Pulmonary Diagnostics Certified Respiratory Therapist in Leesburg, FL · enumerated 2007 · practices at Lake Medical Billing Services Inc.

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

National Provider Identifier

1740493592

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Registry record

Entity type Individual (Type 1)

Name William S Mcpherson

Credential RT

Sex Male

Practice address 340 W Oak Terrace Dr, Suite 107, Leesburg, FL, 34748

Phone (352) 326-9638

Fax (352) 326-9683

Enumeration date May 8, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2278P1004X Pulmonary Diagnostics Certified Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License TT0009233 (FL) Primary

Other identifiers

Identifier	Type	State	Issuer
TT0009233	Other	FL	FLA RESPIRATORY LICENSE

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 William Mcpherson's NPI record?

Cross-check NPI 1740493592 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1740493592 active?

Yes, as of the latest NPPES snapshot, NPI 1740493592 is active (record last updated 2007-07-08).

Other providers at this practice address

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Lake Medical Billing Services Inc Physiological Laboratory · Leesburg, FL NPI 1255545349

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.