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

Individual provider Internal Medicine Physician · NPI 1588616601

Dr. Irl J Don, MD is an Internal Medicine in Saint Louis, Missouri. Graduated from Washington University School of Medicine in 1972, 54 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
54
Trained at
Washington University School of Medicine
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 Div Im General Med Ste 241
Saint Louis, MO 63108-1495
Phone: (314) 362-5060
Fax: (314) 362-6959
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence R3E59 (MO)

Record details

NPI number1588616601
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESApril 17, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1972 (54 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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