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

Dr. John Stephen Mulvahill, MD

Individual provider Internal Medicine Physician · NPI 1205195005

Dr. John Stephen Mulvahill, MD is an Internal Medicine in Saint Louis, Missouri. Qualified in 2012, 14 years ago. Practices with Mercy Clinic East Communities, a 573-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri and Texas.

Years since qualifying
14
Licensed in
MO, TX
In the registry since
2012
Specialties on file
3
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

10024 Watson Rd
Saint Louis, MO 63126-1829
Phone: (314) 919-2500
Fax: (314) 919-2577
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 2015016131 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence BP10043107 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence P9234 (TX)

Record details

NPI number1205195005
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 14, 2012
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Mercy Clinic East Communities — 573 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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