Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Benjamin Larson, MD

Individual provider Internal Medicine Physician · NPI 1649666223

Benjamin Larson, MD practises Internal Medicine in Wynnewood, Pennsylvania. Graduated from Oregon Health Sciences University School of Medicine in 2015, 11 years ago. Practices with Main Line Healthcare, a 1,153-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
11
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
PA
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

100 E Lancaster Ave Ste B11
Wynnewood, PA 19096
Phone: (484) 476-2658
Fax: (484) 476-3577
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD461715 (PA)
Hospitalist Physician Taxonomy 208M00000X · Licence MD461715 (PA)

Record details

NPI number1649666223
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2015
Last updated in NPPESAugust 29, 2018

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Main Line Healthcare — 1153 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients187
Services billed 370 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Main Line Healthcare

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1153 clinicians in the practice; 12 are shown here.

Other providers in Wynnewood