Sean M. Karp, MD

Medicare activity in 2024

Official CMS public-use data for Sean M. Karp, 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 moderate level of decision making, if using time, 30 minutes or more (99214)272 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)132 services
3. Biopsy of large bowel using a flexible endoscope (45380)96 services
4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)92 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)84 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 blood pressure75%
• High cholesterol75%
• Arthritis52%
• Diabetes34%
• Ischemic heart disease22%
• Anxiety22%

Hospitals where Sean M. Karp works

Medicare's Facility Affiliation Data lists Sean M. Karp 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.

• Adventist Healthcare White Oak Medical CenterSilver Spring, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210016

Practice locations

Addresses where Sean M. Karp is enrolled with Medicare (CMS data updated October 2, 2026).

• 2021 K St NW, Suite T 110 Metroploitan GastroenterologyWashington, DC 20061 (202) 296‑3449
• 5500 Knoll N Dr, Suite 460Columbia, MD 21045 (410) 730‑9363
• 5755 Cedar LnColumbia, MD 21044 (301) 718‑0600
• 7350 Van Dusen RdLaurel, MD 20707
• 7350 Van Dusen Rd, Suite 410Laurel, MD 20707 (301) 498‑5500

Group practices

Medicare enrollment lists Sean M. Karp as a member of this group (CMS data updated October 2, 2026).

• Capital Digestive Care LLC241 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in District of Columbia →

Other gastroenterologists in Washington

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

• Gary W. Thompson, MD
• John E. Carroll, MD
• Nadim Haddad, MD
• Walid Chalhoub, MD
• Lauren George, MD
• Zahid Vahora, MD
• Ira D. Shocket, MD
• Leland Stratton, MD

All gastroenterologists in Washington →

Other clinicians in Capital Digestive Care LLC

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

• George H. Pop, MD
• Karin Lundgren, CNA
• Hosanna J. Morillo, NP
• John Lenahan
• Jennifer McClain, CNA
• Ravi G. Chhatrala, 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