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

John E Frattini, MD

Individual provider Internal Medicine Physician · NPI 1124093810

John E Frattini, MD is a Pulmonary Disease in Chesterfield, Missouri. Graduated from Washington University School of Medicine in 1986, 40 years ago. Practices with Cogent Healthcare of Missouri Inc, a 30-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
40
Trained at
Washington University School of Medicine
Licensed in
MO
In the registry since
2006
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

232 S Woodsmill Rd
Chesterfield, MO 63017-3417
Phone: (314) 434-1500
Fax: (314) 542-4891
Show map & directions

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

Additional practice locations (1)

  • 12255 Depaul Dr, Bridgeton, MO 63044-6304 — (314) 209-5180

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence R6H05 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence R6H05 (MO)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence R6H05 (MO)

Record details

NPI number1124093810
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 17, 2006
Last updated in NPPESMay 19, 2022
Certification dateMay 4, 2022
Mailing address12919 Tundra Ct., St. Louis, MO 63131-1319

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Cogent Healthcare Of Missouri Inc — 30 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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