Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Stephen C Greco, MD

Individual provider Radiation Oncology Physician · NPI 1659463750

Stephen C Greco, MD practises Radiation Oncology in Bethesda, Maryland. Graduated from Louisiana State University School of Medicine in New Orleans in 1992, 34 years ago. Practices with Johns Hopkins University, a 705-clinician group and offers telehealth. Licensed in Maryland.

Years since qualifying
34
Trained at
Louisiana State University School of Medicine in New Orleans
Licensed in
MD
In the registry since
2006
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

6420 Rockledge Dr Ste 1200
Bethesda, MD 20817-7837 Not confirmed with CMS for 13 years — call before visiting
Phone: (301) 896-2012
Fax: (301) 896-6331
Show map & directions

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

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence D0052153 (MD)

Record details

NPI number1659463750
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESAugust 29, 2013

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduated 1992 (34 years in practice)
Group practice Johns Hopkins University — 705 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations8 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 patients502
Services billed 5,045 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 705 clinicians in the practice; 12 are shown here.

Other providers in Bethesda