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

Leo W Mack Jr., MD

Individual provider Ophthalmology Physician · NPI 1669443370

Leo W Mack Jr., MD is an Ophthalmology in Tyler, Texas. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1969, 57 years ago. Accepts Medicare assignment. Licensed in Texas.

Years since qualifying
57
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
TX
In the registry since
2006
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

5791 New Copeland Rd
Tyler, TX 75703-3905
Phone: (903) 630-7007
Fax: (903) 630-7072
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence E4001 (TX)

Record details

NPI number1669443370
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 30, 2006
Last updated in NPPESDecember 9, 2025
Certification dateDecember 9, 2025
Mailing address5791 New Copeland Rd, Tyler, TX 75703-3905

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1969 (57 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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