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

Dr. John Edward Mason, MD

Individual provider Surgery Physician · NPI 1275528580

Dr. John Edward Mason, MD is a General Surgery in Chesterfield, Missouri. Graduated from Washington University School of Medicine in 1993, 33 years ago. Practices with St Lukes Medical Group, a 15-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
33
Trained at
Washington University School of Medicine
Licensed in
MO
In the registry since
2005
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

226 S Woods Mill Rd Ste 49 W
Chesterfield, MO 63017-3662
Phone: (314) 434-1211
Fax: (314) 434-4419
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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 104004 (MO)

Record details

NPI number1275528580
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 13, 2005
Last updated in NPPESFebruary 26, 2018
Mailing address226 S Woods Mill Rd, Suite 49 W, Chesterfield, MO 63017-3662

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice St Lukes Medical Group — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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