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

Richard Xavier Brennan, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1316986540

Richard Xavier Brennan, MD is an Obstetrics/Gynecology in Saint Louis, Missouri. Graduated from Saint Louis University School of Medicine in 1986, 40 years ago. Practices with Mercy Clinic East Communities, a 573-clinician group and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
40
Trained at
Saint Louis University School of Medicine
Licensed in
IL, MO
In the registry since
2006
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

12700 Southfork Rd Ste 230
Saint Louis, MO 63128-3201
Phone: (314) 849-3711
Fax: (314) 849-0235
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MDR6H23 (MO)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 336-069221 (IL)

Record details

NPI number1316986540
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 5, 2006
Last updated in NPPESMarch 14, 2017

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Mercy Clinic East Communities — 573 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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