DR. MARIA XIMENA TRAA KIELY MD MPH
NPI 1760776041
Surgery in Arlington, VA

Active since June 05, 2011PECOS EnrolledAccepts Medicare Assignment
4102 WILSON BLVD, ARLINGTON, VA 22203(703) 462-1777 Get Directions Write a Review

NPPES record last updated: December 17, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 17, 2025, Jul 10, 2025, Nov 6, 2024 and 5 more (8 updates tracked since 2017).

About Dr. Maria Ximena Traa Kiely Md Mph NPPES

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

DR. MARIA XIMENA TRAA KIELY MD MPH (NPI 1760776041) is an individual surgery provider in Arlington, Virginia, licensed in Virginia (0101284860) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS, maintains 6 additional practice locations, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1760776041
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameDR. MARIA XIMENA TRAA KIELYCredential: MD MPH
Location Address4102 WILSON BLVDArlington, VA 22203-1802
Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 933-0000 · Fax (503) 963-2825
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateJune 5, 2011
Last NPPES UpdateDecember 17, 20258 updates tracked since enumeration
NPPES CertifiedDecember 17, 2025
NPI 1760776041 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses Licensed in VA · 0101284860 Licensed in MD · D0103035 Licensed in MA · 248886
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedColon & Rectal SurgeryTaxonomy 208C00000X · License MD188947 (OR)
4102 WILSON BLVD, Arlington, VA 22203

Other Names 1

Former Name (1)Maria Ximena Traa Md

Secondary Practice Locations 6

Location 13181 SW Sam Jackson Park RdPortland, OR 97239-3011 · Phone (503) 494-1502
Location 24805 NE Glisan St Ste 6N60Portland, OR 97213 · Phone (503) 281-0561 · Fax (503) 416-7377
Location 39155 SW Barnes Rd Ste 735Portland, OR 97225-6634 · Phone (503) 281-0561 · Fax (503) 416-7377
Location 41111 NE 99th Ave Ste 301Portland, OR 97220-9442 · Phone (503) 281-0561 · Fax (503) 416-7377
Location 55255 Loughboro Rd NWWashington, DC 20016-2633 · Phone (202) 537-4000
Location 66420 Rockledge Dr Ste 4200Bethesda, MD 20817-7847 · Phone (301) 896-6840 · Fax (301) 530-7989

Other Identifiers 2

Medicaid2085235WA
Medicaid500729766OR

Accepted Insurance

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

Dr. Maria Ximena Traa Kiely Md Mph 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 ID8022332246
PECOS Enrollment IDI20250710003201
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 7

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.

Diagnostic exam of rectum and lower large bowel using an endoscope 45300
This procedure, known as a sigmoidoscopy, involves using a thin, flexible instrument called an endoscope to examine your lower large bowel and rectum. This helps in identifying any abnormalities or issues that could affect your digestive health.
43 services41 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
41 services31 patients
Injection of hemorrhoid 46500
An injection for hemorrhoids involves administering a substance into the swollen tissue to reduce its size. It's a simple, quick procedure, performed in a doctor's office, to help alleviate discomfort and inflammation.
25 services21 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
24 services24 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
23 services23 patients
Diagnostic exam of anus using an endoscope 46600
This procedure involves using a thin, flexible instrument called an endoscope to examine the anal area. It helps detect any abnormal conditions or issues. It's a safe, routine exam performed by a healthcare professional.
20 services13 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
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Skin barrier; solid, 4 x 4 or equivalent; each A4362
DME-Orthotic Devices · category DF010N
3 suppliers11 claims360 services$2.85 avg. paid by Medicare
Ostomy skin barrier, liquid (spray, brush, etc.), per oz A4369
DME-Orthotic Devices · category DF010N
3 suppliers32 claims78 services$1.99 avg. paid by Medicare
Ostomy skin barrier, powder, per oz A4371
DME-Orthotic Devices · category DF010N
3 suppliers32 claims63 services$3.47 avg. paid by Medicare
Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385
DME-Orthotic Devices · category DF010N
5 suppliers42 claims1,090 services$4.83 avg. paid by Medicare
Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce A4394
DME-Orthotic Devices · category DF010N
4 suppliers22 claims464 services$2.50 avg. paid by Medicare
Ostomy pouch, closed; for use on barrier with non-locking flange, with filter (2 piece), each A4419
DME-Orthotic Devices · category DF010N
3 suppliers20 claims1,860 services$1.67 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

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

Family Medicine
4102 WILSON BLVD
ARLINGTON, VA 22203
Family Medicine
4102 WILSON BLVD
ARLINGTON, VA 22203
Internal Medicine
4102 WILSON BLVD
ARLINGTON, VA 22203
Optometrist
4102 WILSON BLVD
ARLINGTON, VA 22203
Internal Medicine
4102 WILSON BLVD
ARLINGTON, VA 22203
Clinic/Center (Multi-Specialty)
4102 WILSON BLVD
ARLINGTON, VA 22203
Internal Medicine
4102 WILSON BLVD
ARLINGTON, VA 22203

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 Maria Kiely's NPI number?

The NPI number for Maria Kiely is 1760776041. It was assigned to this individual provider in the NPPES registry on June 5, 2011. The provider is also known as Maria Ximena Traa MD.

Where is Maria Kiely located?

Maria Kiely practices at 4102 Wilson Blvd, Arlington, VA 22203. The listed phone number is (703) 462-1777.

What is Maria Kiely's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Maria Kiely enrolled in Medicare?

Yes. Maria Kiely 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.

What insurance does Maria Kiely accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Maria Kiely as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Maria Kiely was last updated on December 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.