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

Dr. Jon H Ritter, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1366460784

Dr. Jon H Ritter, MD is a Pathology in Saint Louis, Missouri. Graduated from University of Minnesota Homeopathic Medicine - Nlg in 1988, 38 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
38
Trained at
University of Minnesota Homeopathic Medicine - Nlg
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

1 Barnes Jewish Hospital Plz Div Pa Anatomic And Molecular Path
Saint Louis, MO 63110-1003
Phone: (314) 362-5641
Fax: (314) 362-0369
Show map & directions

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

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 100817 (MO)

Record details

NPI number1366460784
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2006
Last updated in NPPESApril 17, 2025

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF MINNESOTA HOMEOPATHIC MEDICINE - NLG
Graduated 1988 (38 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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