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

Dr. Stephen Martin Sozio, MD, MHS

Individual provider Nephrology Physician · NPI 1558412288

Dr. Stephen Martin Sozio, MD, MHS practises Nephrology in Baltimore, Maryland. Graduated from Johns Hopkins University School of Medicine in 2002, 24 years ago. Practices with Johns Hopkins University, a 2,855-clinician group and offers telehealth. Licensed in Maryland.

Years since qualifying
24
Trained at
Johns Hopkins University School of Medicine
Licensed in
MD
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

301 Mason Lord Dr Ste 2500 Johns Hopkins Bayview Renal Medicine
Baltimore, MD 21224-3057 Not confirmed with CMS for 13 years — call before visiting
Phone: (410) 550-2820
Fax: (410) 550-7950
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence D0067840 (MD)

Record details

NPI number1558412288
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MHS
Sole proprietorYes
NPI enumeratedJanuary 16, 2007
Last updated in NPPESJanuary 5, 2013

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Johns Hopkins University — 2855 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

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 patients338
Services billed 983 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Colleagues at Johns Hopkins University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2855 clinicians in the practice; 12 are shown here.

Other providers in Baltimore