Oran J. Kremen, MD

Medicare activity in 2024

Official CMS public-use data for Oran J. Kremen, 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. Anesthesia for procedure to assess heart electrical activity (00537)70 services
2. Insertion of artery tube for blood sampling or infusion through skin (36620)36 services
3. Anesthesia for insertion of permanent heart pacemaker (00530)32 services
4. Anesthesia for insertion or replace of pacing heart defibrillator (00534)22 services
5. Ultrasonic guidance for blood vessel access (76937)16 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%
• Atrial fibrillation54%
• Arthritis50%
• Ischemic heart disease49%
• Diabetes43%

Hospitals where Oran J. Kremen works

Medicare's Facility Affiliation Data lists Oran J. Kremen 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.

• Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
• MedStar Washington Hospital CenterWashington, DC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 090011

Practice locations

Addresses where Oran J. Kremen is enrolled with Medicare (CMS data updated October 2, 2026).

• 1145 19th St NW, 311 Mmg at 19th Street NWWashington, DC 20036 (202) 429‑2401
• 3300 Gallows RdFalls Church, VA 22042 (703) 776‑4001

Group practices

Medicare enrollment lists Oran J. Kremen as a member of these groups (CMS data updated October 2, 2026).

• MedStar Medical Group II LLC3,767 clinicians in the group
• Northstar Anesthesia of Virginia, LLC406 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in District of Columbia →

Other anesthesiologists in Washington

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

• Ryan H. Haughey, MD
• Milad Nazemzadeh, MD
• Monique S. Blair, DO
• Adam Greenwood, MD
• Justin Black, MD
• Michael J. Brennan, MD
• Sabrina Clerssaint, MD
• Sumeet R. Gopwani, MD

All anesthesiologists in Washington →

Other clinicians in MedStar Medical Group II LLC

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

• Daria Bekina-Sreenivasan, MD
• Richard Weinstein, MD
• Steven C. Doll, PA
• Micky Santos, NP
• Kimberly Bubnash, NP
• Sofia Beg, 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