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DR. IRINA FOX BRENNAN MD, PHD
NPI 1053605584
Emergency Medicine in Alexandria, VA

Active since June 01, 2011PECOS Enrolled
4320 SEMINARY RD, ALEXANDRIA, VA 22304(240) 686-2300(240) 686-2335 Get Directions Write a Review

NPPES record last updated: August 23, 2016. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 23, 2016, Jul 1, 2016 (2 updates tracked since 2016).

About Dr. Irina Fox Brennan Md, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. IRINA FOX BRENNAN MD, PHD (NPI 1053605584) is an individual emergency medicine provider in Alexandria, Virginia, licensed in Virginia (0101260407) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053605584
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. IRINA FOX BRENNANCredential: MD, PHD
Location Address4320 SEMINARY RDAlexandria, VA 22304-1535
Mailing Address20010 Century Blvd, Suite 200Germantown, MD 20874-1115 · (240) 686-2300 · Fax (240) 686-2335
Phone(240) 686-2300
Fax(240) 686-2335
Sole ProprietorNo
Enumeration DateJune 1, 2011
Last NPPES UpdateAugust 23, 20162 updates tracked since enumeration
✔ NPI 1053605584 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in VA · 0101260407✔ Licensed in FL · ME117790
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4320 SEMINARY RD, Alexandria, VA 22304
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Other Identifiers 2

Medicare PINIE274ZFL
Medicaid014951800FL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Irina Fox Brennan Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
205 services200 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
165 services112 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
38 services37 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
38 services38 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22304 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$100.31 typical visit price
range $65.18 – $194.86
Typical copayment $25.07 (range $16.29 – $48.71)
Most-billed visit code 99203
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MADHUSUDANAN SRAMBICKAL RAMASWAMY M.D., M.S.
Internal Medicine (Critical Care Medicine)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
ASSOCIATION OF ALEXANDRIA RADIOLOGISTS, P.C.
Radiology (Diagnostic Radiology)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
DR. MICHAEL ANTHONY HOLLIDAY M.D.
Pediatrics (Neonatal-Perinatal Medicine)
4320 SEMINARY RD, SUITE 3000
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3069
MR. VALENTINE JEAN TOUSSAINT NILES CRNA
Nurse Anesthetist, Certified Registered
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3521
MR. RODOLFO AMA ALORA JR. PT
Physical Therapist
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3167
ABDUL RAHMAN M.D
Internal Medicine (Critical Care Medicine)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
LIANA E MATEVOSIAN NP
Nurse Practitioner
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000
DR. BROOKE LANELL GRAY D.O.
Internal Medicine (Critical Care Medicine)
4320 SEMINARY RD
ALEXANDRIA, VA 22304
Alexandria City (703) 504-3000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Irina Brennan's NPI number?

The NPI number for Irina Brennan is 1053605584. It was assigned to this individual provider in the NPPES registry on June 1, 2011.

Where is Irina Brennan located?

Irina Brennan practices at 4320 Seminary Rd, Alexandria, VA 22304. The listed phone number is (240) 686-2300.

What is Irina Brennan's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Irina Brennan enrolled in Medicare?

Yes. Irina Brennan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Irina Brennan was last updated on August 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.