STEPHEN N. XENAKIS MD
NPI 1013929819
Psychiatry & Neurology - Psychiatry in Washington, DC

Q: What is Stephen Xenakis's NPI number?

The NPI number for Stephen Xenakis is 1013929819. It was assigned to this individual provider in the NPPES registry on August 12, 2006.

Q: What is Stephen Xenakis's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Xenakis was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since August 12, 2006PECOS Enrolled

4228 WISCONSIN AVE NW, WASHINGTON, DC 20016(202) 885-5600 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Stephen N. Xenakis Md NPPES

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

STEPHEN N. XENAKIS MD (NPI 1013929819) is an individual psychiatry provider in Washington, District Of Columbia, licensed in District Of Columbia (MD035229) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1013929819

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameSTEPHEN N. XENAKISCredential: MD

Location Address4228 WISCONSIN AVE NWWashington, DC 20016-2138

Mailing Address2235 Military RdArlington, VA 22207-3959 · (703) 527-9393

Phone(202) 885-5600

Sole ProprietorYes

Enumeration DateAugust 12, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1013929819 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in DC · MD035229

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

4228 WISCONSIN AVE NW, Washington, DC 20016

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Other Identifiers 2

Medicare UPING78046

Medicare ID-Type Unspecified016561W23

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen N. Xenakis Md 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 20016 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

$194.86 typical visit price

range $65.18 – $194.86

Typical copayment $48.71 (range $16.29 – $48.71)

Most-billed visit code 99205

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.

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