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

Mason Joseph Lee, DO

Individual provider Family Medicine Physician · NPI 1053007955

Mason Joseph Lee, DO is a Family Practice in Saint Louis, Missouri. Graduated from University of Missouri, Kansas City, School of Medicine in 2024, 2 years ago. Practices as a sole proprietor and works from 2 locations. Licensed in Missouri.

Years since qualifying
2
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
MO
In the registry since
2023
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

3630 S Geyer Rd Ste 320
Saint Louis, MO 63127-1234
Phone: (314) 626-2000
Fax: (314) 626-2001
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12680 Olive Blvd Ste 300, Saint Louis, MO 63141-6322 — (314) 251-8888

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 2023019906 (MO)

Record details

NPI number1053007955
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 13, 2023
Last updated in NPPESAugust 5, 2026
Certification dateAugust 5, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 2024 (2 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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