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

Dr. John B Costello, MD

Individual provider Internal Medicine Physician · NPI 1417062563

Dr. John B Costello, MD is an Internal Medicine in Saint Louis, Missouri. Graduated from Saint Louis University School of Medicine in 1977, 49 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
49
Trained at
Saint Louis University School of Medicine
Licensed in
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.

See every abbreviation used in this directory →

Practice location Address checks out

2821 N Ballas Rd Ste 165
Saint Louis, MO 63131-2321
Phone: (314) 995-9988
Fax: (866) 847-8598
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence R9162 (MO)
Rheumatology Physician Taxonomy 207RR0500X · Licence R9162 (MO)

Record details

NPI number1417062563
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 20, 2006
Last updated in NPPESJuly 15, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesRHEUMATOLOGY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Saint Louis