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

Dr. Fred Guo Karaisz, MD

Individual provider Internal Medicine Physician · NPI 1386209161

Dr. Fred Guo Karaisz, MD is a Gastroenterology in Saint Louis, Missouri. Graduated from Pennsylvania State University College of Medicine in 2019, 7 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
7
Trained at
Pennsylvania State University College of Medicine
Licensed in
MO
In the registry since
2019
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1 Barnes Jewish Hospital Plz Div Im Gastroenterology
Saint Louis, MO 63110-1003
Phone: (314) 747-2066
Fax: (314) 362-2357
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 2025017760 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2025017760 (MO)

Record details

NPI number1386209161
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 7, 2019
Last updated in NPPESJuly 18, 2025
Certification dateMay 30, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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