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

John B Mack, MD

Individual provider Surgery Physician · NPI 1801826151

John B Mack, MD is a General Surgery in Longview, Texas. Graduated from Baylor College of Medicine in 1987, 39 years ago. Practices with Associated Clinicians of East Texas, a 106-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
39
Trained at
Baylor College 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

707 Hollybrook Dr
Longview, TX 75605-2410
Phone: (903) 753-4666
Fax: (903) 753-6634
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence H6396 (TX)

Record details

NPI number1801826151
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 3, 2006
Last updated in NPPESJune 13, 2019
Mailing addressPo Box 610393, Dallas, TX 75261-0393

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Associated Clinicians Of East Texas — 106 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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