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

Dr. Alexander John Mazzaferro, MD

Individual provider Family Medicine Physician · NPI 1982017786

Dr. Alexander John Mazzaferro, MD is a Family Practice in Saint Louis, Missouri. Graduated from Saint Louis University School of Medicine in 2014, 12 years ago. Practices with Mercy Clinic East Communities, a 573-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
12
Trained at
Saint Louis University School of Medicine
Licensed in
MO
In the registry since
2014
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

4280 Mid America Ln Ste 30
Saint Louis, MO 63129-1202
Phone: (314) 782-2620
Show map & directions

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

Additional practice locations (1)

  • 615 S New Ballas Rd, Saint Louis, MO 63141-8221 — (314) 251-8888

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 2017018127 (MO)
Family Medicine Physician Taxonomy 207Q00000X · Licence 2014017191 (MO)

Record details

NPI number1982017786
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 9, 2014
Last updated in NPPESMarch 17, 2018

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 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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