Sirinan Tazen, MD

Medicare activity in 2024

Official CMS public-use data for Sirinan Tazen, 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. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)127 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)110 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)63 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)62 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)44 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%
• Arthritis55%
• Ischemic heart disease27%
• Depression27%
• Diabetes23%

Hospitals where Sirinan Tazen works

Medicare's Facility Affiliation Data lists Sirinan Tazen 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 Sirinan Tazen is enrolled with Medicare (CMS data updated October 2, 2026).

• 1635 N George Mason Dr, Suite 420Arlington, VA 22205 (703) 536‑4000

Group practices

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

• Northern Virginia Neurologic Associates5 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in Virginia →

Other neurologists in Arlington

Clinicians with the same Medicare primary specialty in Arlington, VA — not a recommendation.

• Sepideh Panahi, MD
• Zurab Nadareishvili, MD
• Faye R. Rosenbaum, MD
• Elahe Bordbar, MD
• Margaret W. Perrin, MD
• Andrew M. Becker, MD
• Benny S. Kim, MD
• Eric W. Czander, MD

All neurologists in Arlington →

Other clinicians in Northern Virginia Neurologic Associates

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

• Faye R. Rosenbaum, MD
• Eric W. Czander, MD
• Elahe Bordbar, MD
• Margaret W. Perrin, 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