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

Benjamin Cassin Johnson, MD

Individual provider Internal Medicine Physician · NPI 1497332928

Benjamin Cassin Johnson, MD is an Internal Medicine in Baltimore, Maryland. Graduated from Perelman School of Med at the University of Pennsylvania in 2021, 5 years ago. Practices with Baltimore Medical System, Inc, a 88-clinician group and offers telehealth. Licensed in Maryland.

Years since qualifying
5
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
MD
In the registry since
2021
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

1800 Orleans St
Baltimore, MD 21287-0010
Phone: (410) 955-5000
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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 D0103076 (MD)

Record details

NPI number1497332928
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2021
Last updated in NPPESMarch 18, 2025
Certification dateMarch 18, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2021 (5 years in practice)
Group practice Baltimore Medical System, Inc. — 88 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

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