Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Owen Lacy, MD

Individual provider Internal Medicine Physician · NPI 1558457796

William Owen Lacy, MD is a Pulmonary Disease in Louisville, Kentucky. Graduated from University of Louisville School of Medicine in 1986, 40 years ago. Practices with Community Medical Associates Inc, a 1,365-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Kentucky.

Years since qualifying
40
Trained at
University of Louisville School of Medicine
Licensed in
KY
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4606 Greenwood Rd
Louisville, KY 40258
Phone: (502) 937-2209
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence 28706 (KY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 28706 (KY)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 28706 (KY)

Record details

NPI number1558457796
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 5, 2006
Last updated in NPPESNovember 20, 2024
Certification dateNovember 20, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesSLEEP MEDICINE
Medical schoolUNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Community Medical Associates Inc — 1365 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations8 on file with Medicare

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