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

John William Mack, DO

Individual provider Emergency Medicine Physician · NPI 1164384434

John William Mack, DO is an Emergency Medicine Physician in Lansing, Michigan. Licensed in Michigan. Registered with an NPI since 2025.

Licensed in
MI
In the registry since
2025
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2900 Collins Rd
Lansing, MI 48910-8394
Phone: (517) 975-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 5151017724 (MI)

Record details

NPI number1164384434
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedNovember 25, 2025
Last updated in NPPESNovember 25, 2025
Certification dateNovember 24, 2025
Mailing address2900 Collins Rd, Lansing, MI 48910-8394

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