Active NPI
Maria Ximena Traa Kiely, MD MPH
- Surgery Physician
- Arlington, VA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgery Physician
- License
- 0101284860
- Practice address
- 4102 Wilson Blvd
Arlington, VA 22203-1802 - Phone
- (703) 462-1777
- NPI assigned
- Jun 5, 2011
- Last updated
- Dec 17, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Colon & Rectal Surgery Physician | 208C00000X | MD188947 | OR | |
| Surgery Physician | 208600000X | 0101284860 | VA | Primary |
| Surgery Physician | 208600000X | D0103035 | MD | |
| Surgery Physician | 208600000X | 248886 | MA |
Addresses
Primary practice location
4102 Wilson Blvd
Arlington, VA 22203-1802
Mailing address
6201 Greenleigh Ave
Middle River, MD 21220-2004
Phone (410) 933-0000
Other practice location 1
6420 Rockledge Dr Ste 4200
Bethesda, MD 20817-7847
Phone (301) 896-6840
Other practice location 2
5255 Loughboro Rd NW
Washington, DC 20016-2633
Phone (202) 537-4000
Other practice location 3
1111 NE 99th Ave Ste 301
Portland, OR 97220-9442
Phone (503) 281-0561
Other practice location 4
4805 NE Glisan St Ste 6N60
Portland, OR 97213
Phone (503) 281-0561
Other practice location 5
3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011
Phone (503) 494-1502
Other practice location 6
9155 SW Barnes Rd Ste 735
Portland, OR 97225-6634
Phone (503) 281-0561
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2085235 | Medicaid | WA | |
| 500729766 | Medicaid | OR |
Other names 1
- Maria Ximena Traa
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | cc_otoc_cas_front_desk_pool12223192@oc.providencedirect.org | The Oregon Clinic PC |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OR, DC
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Colorectal Surgery (Proctology)
- Education
- Other, 2010
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
14207 Park Ctr Dr
Suite 102
Laurel, MD 20707-5255
Phone (301) 604-5254
4102 Wilson Blvd
Arlington, VA 22203-1802
Phone (703) 462-1777
5215 Loughboro Rd NW
Washington, DC 20016-2618
Phone (202) 243-4480
5255 Loughboro Rd NW
Washington, DC 20016-2633
Phone (202) 537-4000
6410 Rockledge Dr
Bethesda, MD 20817-1844
8600 Old Georgetown Rd
Bethesda, MD 20814-1422
Phone (301) 896-3100
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 93.65 of 100
- Quality
- 86.8
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 86.36
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 43 |
| Skin biopsy | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 248886 | MA | MD | Surgery Physician |
| D0103035 | MD | MD | Surgery Physician |
| MD188947 | OR | MD | Colon & Rectal Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Providence Health & Services - Oregon | Current | Accepting new patients | |
| Providence Health & Services - Oregon | Current | Accepting new patients | |
| Johns Hopkins Community Physicians, Inc | Current | Accepting new patients | |
| The Oregon Clinic PC | Current | Accepting new patients | |
| The Oregon Clinic, PC | Current | Accepting new patients | |
| Johns Hopkins Community Physicians | Current | Accepting new patients | |
| Providence Health & Services Oregon | Current | Accepting new patients | |
| Providence Health & Services - Oregon | Current | Accepting new patients |
Locations
5255 Loughboro Rd NW
Washington, DC 20016
Phone (202) 243-2280
14207 Park Center Dr
Ste 102
Laurel, MD 20707
Phone (301) 604-5254
6201 Greenleigh Ave
Middle River, MD 21220
Phone (410) 933-2704
1111 NE 99th Ave
Ste 301
Portland, OR 97220
Phone (503) 963-2707
4805 NE Glisan St
Portland, OR 97213
Phone (503) 215-1111
4805 NE Glisan St
Ste 6N60
Portland, OR 97213
Phone (503) 281-0561
5050 NE Hoyt St
Ste 655
Portland, OR 97213
Phone (503) 239-6673
541 NE 20th Ave
Ste 225
Portland, OR 97232
Phone (503) 963-2801
847 NE 19th Ave
Ste 300
Portland, OR 97232
9155 SW Barnes Rd
Ste 735
Portland, OR 97225
Phone (503) 281-0561
9205 SW Barnes Rd
Portland, OR 97225
Phone (503) 216-1234
4102 Wilson Blvd
Arlington, VA 22203
Phone (703) 462-1777
Interoperability endpoints
- mkiely1357677@direct.hopkinsmedicine.org
- mkiely819951@oc.providencedirect.org
Organizations & group practices 10
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba Providence Portland Medical Center
- General Acute Care Hospital
- Portland, OR
- NPI 1003991845
-
dba Providence St Vincent Medical Center
- General Acute Care Hospital
- Portland, OR
- NPI 1114015971
-
- Specialist
- Portland, OR
- NPI 1265417174
-
dba NRH Rehabilitation Network at Bethesda
- Rehabilitation Clinic/Center
- Bethesda, MD
- NPI 1457354748
-
dba JHCP- 6225 Smith Avenue; Mental Health Therapy
- Clinical Social Worker
- Baltimore, MD
- NPI 1356161806
-
- Internal Medicine Physician
- Baltimore, MD
- NPI 1255359972
-
dba Prov St. Vincent Medical Ctr
- Clinical Pathology Physician
- Portland, OR
- NPI 1831641745
-
dba Providence Portland Medical Center
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- Portland, OR
- NPI 1396818993
-
- Durable Medical Equipment & Medical Supplies
- Portland, OR
- NPI 1346105129
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Sibley Memorial Hospital
- General Acute Care Hospital
- Washington, DC
- NPI 1366492977
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1307232000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1765929600000",
"number": "1760776041",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6201 GREENLEIGH AVE",
"city": "MIDDLE RIVER",
"state": "MD",
"postal_code": "212202004",
"telephone_number": "410-933-0000",
"fax_number": "503-963-2825"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4102 WILSON BLVD",
"city": "ARLINGTON",
"state": "VA",
"postal_code": "222031802",
"telephone_number": "703-462-1777"
}
],
"practiceLocations": [
{
"address_1": "6420 Rockledge Dr Ste 4200",
"address_purpose": "LOCATION",
"city": "Bethesda",
"state": "MD",
"postal_code": "208177847",
"country_code": "US",
"telephone_number": "301-896-6840",
"fax_number": "301-530-7989",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "5255 Loughboro Rd NW",
"address_purpose": "LOCATION",
"city": "Washington",
"state": "DC",
"postal_code": "200162633",
"country_code": "US",
"telephone_number": "202-537-4000",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1111 NE 99th Ave Ste 301",
"address_purpose": "LOCATION",
"city": "Portland",
"state": "OR",
"postal_code": "972209442",
"country_code": "US",
"telephone_number": "503-281-0561",
"fax_number": "503-416-7377",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "4805 NE Glisan St Ste 6N60",
"address_purpose": "LOCATION",
"city": "Portland",
"state": "OR",
"postal_code": "97213",
"country_code": "US",
"telephone_number": "503-281-0561",
"fax_number": "503-416-7377",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "3181 SW Sam Jackson Park Rd",
"address_purpose": "LOCATION",
"city": "Portland",
"state": "OR",
"postal_code": "972393011",
"country_code": "US",
"telephone_number": "503-494-1502",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "9155 SW Barnes Rd Ste 735",
"address_purpose": "LOCATION",
"city": "Portland",
"state": "OR",
"postal_code": "972256634",
"country_code": "US",
"telephone_number": "503-281-0561",
"fax_number": "503-416-7377",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KIELY",
"first_name": "MARIA",
"middle_name": "XIMENA TRAA",
"name_prefix": "Dr.",
"credential": "MD MPH",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2011-06-05",
"last_updated": "2025-12-17",
"certification_date": "2025-12-17",
"status": "A"
},
"taxonomies": [
{
"code": "208C00000X",
"taxonomy_group": "",
"desc": "Colon & Rectal Surgery",
"state": "OR",
"license": "MD188947",
"primary": false
},
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "VA",
"license": "0101284860",
"primary": true
},
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "MD",
"license": "D0103035",
"primary": false
},
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "MA",
"license": "248886",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "2085235",
"state": "WA"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "500729766",
"state": "OR"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "cc_otoc_cas_front_desk_pool12223192@oc.providencedirect.org",
"affiliation": "Y",
"affiliationName": "The Oregon Clinic PC",
"address_1": "4805 NE Glisan St Ste 6N60",
"city": "Portland",
"state": "OR",
"country_code": "US",
"postal_code": "97213",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": [
{
"first_name": "MARIA",
"last_name": "TRAA",
"middle_name": "XIMENA",
"credential": "MD",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Arlington, VA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 17, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.