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

Janson Jacob, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1629638614

Janson Jacob, MD is an Internal Medicine in Malvern, Pennsylvania. Graduated from Pennsylvania State University College of Medicine in 2019, 7 years ago. Practices with Regional Gastroenterology Associates of Lancaster, Ltd, a 251-clinician group and accepts Medicare assignment. Licensed in Michigan and Pennsylvania.

Years since qualifying
7
Trained at
Pennsylvania State University College of Medicine
Licensed in
MI, PA
In the registry since
2019
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

325 Central Ave
Malvern, PA 19355-3265
Phone: (610) 644-6755
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MT225674 (PA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 4351044320 (MI)

Record details

NPI number1629638614
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 20, 2019
Last updated in NPPESJune 12, 2025
Certification dateJune 12, 2025
Mailing address707 Eagleview Blvd, Exton, PA 19341-1159

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Regional Gastroenterology Associates Of Lancaster, Ltd. — 251 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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