Vanessa Cowan, MD

Medicare activity in 2024

Official CMS public-use data for Vanessa Cowan, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)186 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)69 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)33 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%
• Chronic kidney disease75%
• Diabetes59%
• Ischemic heart disease41%
• Arthritis34%

Hospitals where Vanessa Cowan works

Medicare's Facility Affiliation Data lists Vanessa Cowan 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.

• Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220086

Practice locations

Addresses where Vanessa Cowan is enrolled with Medicare (CMS data updated October 2, 2026).

• 330 Brookline AveBoston, MA 02215 (617) 667‑7000

Group practices

Medicare enrollment lists Vanessa Cowan as a member of this group (CMS data updated October 2, 2026).

• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc1,740 clinicians in the group

Specialties

• General Surgeryprimary
• Critical Care (Intensivists)also

Find other General Surgery doctors in Massachusetts →

Other general surgeons in Boston

Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.

• Tara Talaie
• Donald T. Hess, MD
• Belinda Hsi Dickie, MD
• Horacio M. Hojman, MD
• Yusuke Tsukioka, MD
• Alex G. Cuenca, MD
• Thomas C. Tsai, MD
• Zachery Garcia, MD

All general surgeons in Boston →

Other clinicians in Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

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

• Anne Marie Anagnostopolous, MD
• Carrie D. Tibbles, MD
• Monique J. Nestor, NP
• Kevin L. Riemer, DPM
• Bassima J. Abdallah, MD
• Aba D. Ewusi, 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