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

Dr. Stephen Krystjan Ronson, MD

Individual provider Specialist · NPI 1861604589

Dr. Stephen Krystjan Ronson, MD is a Radiation Oncology in Baltimore, Maryland. Graduated from University of Maryland School of Medicine in 2004, 22 years ago. Practices with Radiation Oncology Affiliates of Maryland, a 5-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
22
Trained at
University of Maryland 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.

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Practice location Address checks out

9105 Franklin Square Dr Ste 100
Baltimore, MD 21237-3930
Phone: (410) 682-6800
Fax: (410) 682-2783
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence D0067791 (MD)

Record details

NPI number1861604589
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2007
Last updated in NPPESMay 3, 2010

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Radiation Oncology Affiliates Of Maryland — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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