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

Dr. William C Chapman Jr., MD

Individual provider Surgery Physician · NPI 1003297177

Dr. William C Chapman Jr., MD is a Colorectal Surgery (Proctology) in Saint Louis, Missouri. Graduated from Georgetown University School of Medicine in 2015, 11 years ago. Practices with Washington University, a 2,986-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
11
Trained at
Georgetown University School of Medicine
Licensed in
MO
In the registry since
2015
Specialties on file
2
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

1044 N Mason Rd Div Surg Colon/rectal Ste 310
Saint Louis, MO 63141-6431
Phone: (314) 454-7177
Fax: (888) 425-7946
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Colon & Rectal Surgery Physician (primary) Taxonomy 208C00000X · Licence 2017007784 (MO)
Surgery Physician Taxonomy 208600000X · Licence 2017007784 (MO)

Record details

NPI number1003297177
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2015
Last updated in NPPESApril 15, 2025

Medicare enrollment

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

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations8 on file with Medicare

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