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

Gregory Todd Siegel, MD

Individual provider Emergency Medicine Physician · NPI 1740675594

Gregory Todd Siegel, MD is an Emergency Medicine in Lake St Louis, Missouri. Graduated from University of Connecticut School of Medicine in 2015, 11 years ago. Practices with Alton-Griffin Emergency Group PC, a 15-clinician group and accepts Medicare assignment. Licensed in Illinois, Missouri and Pennsylvania.

Years since qualifying
11
Trained at
University of Connecticut School of Medicine
Licensed in
IL, MO, PA
In the registry since
2015
Specialties on file
3
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

100 Medical Plz
Lake St Louis, MO 63367-1366
Phone: (636) 625-5200
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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 2022005665 (MO)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD462234 (PA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036.148091 (IL)

Record details

NPI number1740675594
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 30, 2015
Last updated in NPPESNovember 2, 2022
Certification dateNovember 2, 2022

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CONNECTICUT SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Alton-Griffin Emergency Group Pc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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