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

Dr. John Charles Mazzocco, MD

Individual provider Orthopaedic Surgery Physician · NPI 1386266831

Dr. John Charles Mazzocco, MD is an Orthopaedic Surgery Physician in Boston, Massachusetts. Works from 2 locations. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2020
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

800 Washington St
Boston, MA 02111-1552
Phone: (617) 636-5172
Fax: (617) 636-5178
Show map & directions

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

Additional practice locations (1)

  • 500 S Preston St Rm 305, Louisville, KY 40202-1702 — (502) 852-8696

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 293174 (MA)

Record details

NPI number1386266831
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 7, 2020
Last updated in NPPESJune 21, 2022
Certification dateJune 16, 2022

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