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

Individual provider Obstetrics & Gynecology Physician · NPI 1841359049

Dr. Tammy Shim Sonn, MD is an Obstetrics/Gynecology in Saint Louis, Missouri. Graduated from Rush Medical College of Rush University in 2004, 22 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
22
Trained at
Rush Medical College of Rush University
Licensed in
MO
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

4901 Forest Park Ave Dept Obgyn Ste 710
Saint Louis, MO 63108-1495
Phone: (314) 362-4211
Fax: (888) 315-6494
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 2008010727 (MO)

Record details

NPI number1841359049
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 6, 2006
Last updated in NPPESApril 17, 2025

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 2004 (22 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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