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

Johnathan Schnee Fagg, MD

Individual provider Pulmonary Disease Physician · NPI 1811427636

Johnathan Schnee Fagg, MD is an Internal Medicine in Saint Louis, Missouri. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2017, 9 years ago. Practices with Mercy Clinic Pulmonology - St Louis, LLC, a 22-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois and Missouri.

Years since qualifying
9
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IL, MO
In the registry since
2017
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

621 S New Ballas Rd Ste 228A
Saint Louis, MO 63141-8256
Phone: (314) 251-4968
Fax: (217) 545-4734
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 2023032929 (MO)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 036153001 (IL)

Record details

NPI number1811427636
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2017
Last updated in NPPESOctober 5, 2023
Certification dateOctober 5, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPULMONARY DISEASE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Mercy Clinic Pulmonology - St. Louis, Llc — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Saint Louis