Rebecca A. Gersten, MD

Medicare activity in 2024

Official CMS public-use data for Rebecca A. Gersten, 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 50 minutes (99233)102 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)67 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)41 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)29 services
5. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)20 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 cholesterol74%
• COPD66%
• Arthritis52%
• Ischemic heart disease50%
• Anxiety50%

Hospitals where Rebecca A. Gersten works

Medicare's Facility Affiliation Data lists Rebecca A. Gersten 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.

• Johns Hopkins Bayview Medical CenterBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210029
• Johns Hopkins Howard County Medical CenterColumbia, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210048
• 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 Rebecca A. Gersten is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

• 4940 Eastern AveBaltimore, MD 21224
• 4940 Eastern Ave, Bayview Medical CenterBaltimore, MD 21224 (410) 550‑0100
• 5300 Alpha Commons Dr, Fl 1Baltimore, MD 21224 (410) 847‑3770
• 5501 Hopkins Bayview CirBaltimore, MD 21224
• 5505 Hopkins Bayview CirBaltimore, MD 21224

Group practices

Medicare enrollment lists Rebecca A. Gersten as a member of these groups (CMS data updated October 2, 2026).

• Johns Hopkins University2,909 clinicians in the group
• Johns Hopkins University713 clinicians in the group

Specialties

• Pulmonary Diseaseprimary

Find other Pulmonary Disease doctors in Maryland →

Other pulmonologists in Baltimore

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

• Stacey-Ann Brown, MD
• Elizabeth L. Daugherty, MD
• Karthik Suresh, MD
• Kinjal N. Sheth, MD
• Roman Culjat, MD
• Daniel A. Grove, MD
• Ajay Behari, MD
• Robert Wise, MD

All pulmonologists in Baltimore →

Other clinicians in Johns Hopkins University

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

• Stefan J. Coombs, MD
• Nathalie Yotat, CNA
• Joban Vaishnav, MD
• Jiaying Zhang, MD
• William Ravekes, MD
• Timur Suhail Sindhu, 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