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

Catherine Josephine Pelczar-Wissner, MD

Individual provider Hematology (Internal Medicine) Physician · NPI 1669609343

Catherine Josephine Pelczar-Wissner, MD is a Hematology (Internal Medicine) Physician in Bryn Mawr, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2009
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

48 Brennan Dr
Bryn Mawr, PA 19010-2002
Phone: (914) 450-6755
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD474176 (PA)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence MD474176 (PA)

Record details

NPI number1669609343
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 19, 2009
Last updated in NPPESDecember 5, 2023
Certification dateDecember 5, 2023