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

Dr. Leonard Mason, MD

Individual provider Surgery Physician · NPI 1114122355

Dr. Leonard Mason, MD is a General Surgery in Newark, Delaware. Graduated from Temple University School of Medicine in 2007, 19 years ago. Practices with Christiana Care Health Services Inc, a 1,481-clinician group and accepts Medicare assignment. Licensed in Delaware, Pennsylvania and Tennessee.

Years since qualifying
19
Trained at
Temple University School of Medicine
Licensed in
DE, PA, TN
In the registry since
2007
Specialties on file
3
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

4735 Ogletown Stanton Rd Ste 3301
Newark, DE 19713-7021
Phone: (302) 623-4370
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence C1-0013726 (DE)
Surgery Physician Taxonomy 208600000X · Licence MD457506 (PA)
Trauma Surgery Physician Taxonomy 2086S0127X · Licence 53123 (TN)

Record details

NPI number1114122355
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 18, 2007
Last updated in NPPESAugust 13, 2020
Certification dateAugust 13, 2020
Mailing address200 Hygeia Dr Ste 2300, Newark, DE 19713-2049

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Also practisesPLASTIC AND RECONSTRUCTIVE SURGERY
Medical schoolTEMPLE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Christiana Care Health Services Inc — 1481 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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