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ALEXANDER JON TREI
NPI 1013658632
Pediatrics in Washington, DC

Active since April 06, 2022PECOS Enrolled
3800 RESERVOIR RD NW STE M3400, WASHINGTON, DC 20007(202) 444-8161(202) 444-4747 Get Directions Write a Review

NPPES record last updated: June 26, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 26, 2025, Apr 6, 2022 (2 updates tracked since 2022).

About Alexander Jon Trei NPPES

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

ALEXANDER JON TREI (NPI 1013658632) is an individual pediatrics provider in Washington, District Of Columbia, licensed in District Of Columbia (CS2100012851) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013658632
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameALEXANDER JON TREI
Location Address3800 RESERVOIR RD NW STE M3400Washington, DC 20007-2196
Mailing Address3800 Reservoir Rd Nw Ste M3400Washington, DC 20007-2196 · (202) 444-8161
Phone(202) 444-8161
Fax(202) 444-4747
Sole ProprietorNo
Enumeration DateApril 6, 2022
Last NPPES UpdateJune 26, 20252 updates tracked since enumeration
NPPES CertifiedJune 26, 2025
✔ NPI 1013658632 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in DC · CS2100012851✔ Licensed in MD · D0102964
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
3800 RESERVOIR RD NW STE M3400, Washington, DC 20007
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexander Jon Trei 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20007 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

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

DR. ANTONELLA RODRIGUEZ SANTANA
Pediatrics
3800 RESERVOIR RD NW STE M3400
WASHINGTON, DC 20007
District of Columbia (202) 444-8161

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 Alexander Trei's NPI number?

The NPI number for Alexander Trei is 1013658632. It was assigned to this individual provider in the NPPES registry on April 6, 2022.

Where is Alexander Trei located?

Alexander Trei practices at 3800 Reservoir Rd NW Ste M3400, Washington, DC 20007. The listed phone number is (202) 444-8161.

What is Alexander Trei's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Alexander Trei enrolled in Medicare?

Yes. Alexander Trei is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Alexander Trei was last updated on June 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.