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

John Lonergan, MD

Individual provider Adult Medicine Physician · NPI 1427071158

John Lonergan, MD is an Adult Medicine Physician in Dallas, Texas. Licensed in Maryland. Registered with an NPI since 2006.

Licensed in
MD
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

4500 S Lancaster Rd
Dallas, TX 75216-7167
Phone: (214) 857-1911
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Medicine Physician (primary) Taxonomy 207QA0505X · Licence D31533 (MD)

Record details

NPI number1427071158
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 25, 2006
Last updated in NPPESJuly 13, 2007

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