Cesar A. Santa-Maria, MD

Medicare activity in 2024

Official CMS public-use data for Cesar A. Santa-Maria, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)52 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)46 services
3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)17 services
4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)12 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol75%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High blood pressure65%
• Arthritis44%
• Diabetes27%
• Anxiety21%

Hospitals where Cesar A. Santa-Maria works

Medicare's Facility Affiliation Data lists Cesar A. Santa-Maria at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Sibley Memorial HospitalWashington, DC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 090005
• The Johns Hopkins HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210009

Practice locations

Addresses where Cesar A. Santa-Maria is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

• 5255 Loughboro Rd NWWashington, DC 20016 (202) 537‑4000
• 5255 Loughboro Road NW, Sibley Memorial HospitalWashington, DC 20016 (202) 660‑6500
• 5755 Cedar LnColumbia, MD 21044
• 5759 Cedar LnColumbia, MD 21044
• 600 N Wolf StBaltimore, MD 21287

Group practices

Medicare enrollment lists Cesar A. Santa-Maria as a member of these groups (CMS data updated October 2, 2026).

• Johns Hopkins University2,909 clinicians in the group
• Johns Hopkins University197 clinicians in the group

Specialties

• Medical Oncologyprimary
• Internal Medicinealso

Find other Medical Oncology doctors in District of Columbia →

Other oncologists in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

• Evan Lipson, MD
• Noah M. Hahn, MD
• Michael Atkins, MD
• Jean H. Hoffman-Censits, MD
• Jennifer Sheng, MD
• Matthias Holdhoff, MD
• Gabrielle Prince, MD
• Valerie Lee, MD

All oncologists in Washington →

Other clinicians in Johns Hopkins University

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Mansoor A. Malik, MD
• Ted Gerstenblith, MD
• Brendan Antiochos, MD
• David Wolinsky, MD
• Ashley Zinalabedini, NP
• Alejandra Maiz, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians