Asa S. Rubin, MD

Medicare activity in 2024

Official CMS public-use data for Asa S. Rubin, 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. Pathology examination of tissue using a microscope, intermediate complexity (88305)634 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)217 services
3. Special stained specimen slides to examine tissue, initial procedure (88342)188 services
4. Cell examination of specimen, selective cellular enhancement technique (88112)83 services
5. Special stained specimen slides to examine tissue, each multiplex procedure (88344)75 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%
• High blood pressure72%
• Arthritis48%
• Ischemic heart disease28%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)28%
• Diabetes24%

Hospitals where Asa S. Rubin works

Medicare's Facility Affiliation Data lists Asa S. Rubin 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.

• Virginia Hospital CenterArlington, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490050

Practice locations

Addresses where Asa S. Rubin is enrolled with Medicare (CMS data updated October 2, 2026).

• 11921 Bournefield Way, Suite 100Silver Spring, MD 20904 (240) 737‑0080
• 1701 N George Mason DrArlington, VA 22205 (703) 257‑1440

Group practices

Medicare enrollment lists Asa S. Rubin as a member of these groups (CMS data updated October 2, 2026).

• Capital Digestive Care LLC241 clinicians in the group
• Cary Poropatich MD LLC7 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Maryland →

Other pathologists in Silver Spring

Clinicians with the same Medicare primary specialty in Silver Spring, MD — not a recommendation.

• David Terrano, MD
• Matthew Kirkbride, MD
• Andra O. Kovalovsky, MD
• Marriam Y. Aalai, MD
• Seyed Sajad Salehi, MD
• Zena Khalil, MD
• Rong Rong, MD
• Sreedevi Kurella, MD

All pathologists in Silver Spring →

Other clinicians in Capital Digestive Care LLC

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

• Kelvin Hornbuckle, MD
• Zilla H. Hussain, MD
• Eric J. Margulies, MD
• Christine B. Shevock
• Amy G. Shah, MD
• Sarit Kipnis, 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