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

Leonard I Mastbaum, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1619928249

Leonard I Mastbaum, MD is an Endocrinology, Diabetes & Metabolism Physician in Fort Wayne, Indiana. Licensed in Indiana. Registered with an NPI since 2006.

Licensed in
IN
In the registry since
2006
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

11123 Parkview Plaza Dr Ste 202
Fort Wayne, IN 46845-1707
Phone: (260) 373-4280
Fax: (260) 373-4288
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 01041346 (IN)

Record details

NPI number1619928249
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 16, 2006
Last updated in NPPESMarch 23, 2013
Mailing address1234 E Dupont Rd, Suite 1, Fort Wayne, IN 46825-1545

Other providers in Fort Wayne