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

Katherine Laura Olshan, MD

Individual provider Pediatric Gastroenterology Physician · NPI 1932596855

Katherine Laura Olshan, MD is a Pediatric Medicine in Worcester, Massachusetts. Graduated from Medical College of Wisconsin in 2015, 11 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
11
Trained at
Medical College of Wisconsin
Licensed in
MA
In the registry since
2015
Specialties on file
2
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

55 Lake Ave N
Worcester, MA 01655-0002
Phone: (508) 334-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Gastroenterology Physician (primary) Taxonomy 2080P0206X · Licence 263752 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 263752 (MA)

Record details

NPI number1932596855
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2015
Last updated in NPPESJune 17, 2021
Certification dateJune 17, 2021

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2015 (11 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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