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

Dr. Erin Leigh Dyer, MD

Individual provider Internal Medicine Physician · NPI 1003431420

Dr. Erin Leigh Dyer, MD is an Internal Medicine in Saint Louis, Missouri. Graduated from University of Mississippi School of Medicine in 2020, 6 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
6
Trained at
University of Mississippi School of Medicine
Licensed in
MO
In the registry since
2020
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

4901 Forest Park Ave Div Im General Med Ste 241
Saint Louis, MO 63108-1495
Phone: (314) 362-5060
Fax: (314) 362-6959
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Physician (primary) Taxonomy 208D00000X · Licence 2022049900 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2022049900 (MO)
Hospitalist Physician Taxonomy 208M00000X · Licence 2022049900 (MO)

Record details

NPI number1003431420
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2020
Last updated in NPPESApril 17, 2025
Certification dateJune 19, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MISSISSIPPI SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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