1. Home
  2. Directory
  3. Virginia
  4. Arlington
  5. Emergency Medicine
  6. NPI Profile

TOM S. CHIEN MD
NPI 1225205131
Emergency Medicine in Arlington, VA

Active since May 09, 2008PECOS EnrolledAccepts Medicare Assignment
4501 ARLINGTON BLVD #315, ARLINGTON, VA 22203(202) 262-1485 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Tom S. Chien Md NPPES

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

TOM S. CHIEN MD (NPI 1225205131) is an individual emergency medicine provider in Arlington, Virginia, licensed in Virginia (0101242208) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2005).

NPPES Registry Identity

NPI1225205131
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameTOM S. CHIENCredential: MD
Location Address4501 ARLINGTON BLVD #315Arlington, VA 22203
Mailing Address4501 Arlington Blvd #315Arlington, VA 22203
Phone(202) 262-1485
Sole ProprietorYes
Medical School CMSGeorge Washington University School Of MedicineGraduated 2005
Enumeration DateMay 9, 2008
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1225205131 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in VA · 0101242208
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.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Tom S. Chien Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4385793595
PECOS Enrollment IDI20100408000073
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

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.

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.
27 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22203 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.

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 Tom Chien's NPI number?

The NPI number for Tom Chien is 1225205131. It was assigned to this individual provider in the NPPES registry on May 9, 2008.

Where is Tom Chien located?

Tom Chien practices at 4501 Arlington Blvd #315, Arlington, VA 22203. The listed phone number is (202) 262-1485.

What is Tom Chien's specialty?

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

Is Tom Chien enrolled in Medicare?

Yes. Tom Chien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Tom Chien was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.