Stephen N. Xenakis, MD
Psychiatry Physician · Washington, DC
Stephen N. Xenakis, MD is a psychiatry physician with a practice address in Washington, District of Columbia, and NPI 1013929819, issued on Aug 12, 2006. Check the license (District of Columbia MD035229, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Stephen N. Xenakis
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD035229 DC
Self-reported in NPPES; status is on the state search - Practice location
- 4228 Wisconsin Ave NW, Washington, DC 20016
- Phone
- (202) 885-5600
- Enumerated
- Aug 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 474 in District of Columbia → Look up another NPI →
Also registered at 4228 Wisconsin Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Germain Angu, APRN-CNPPrimary Care Nurse Practitioner1679187793
- Kumudini Attanagoda, MDPsychiatry Physician1891801460
- Charles Chaney, MDPsychiatry Physician1184990087
- Sushila Chelliah, MDPsychiatry Physician1730218512
- Tzvetelina Dimitrova, MDPsychiatry Physician1952557969
- Lartoniah HassanPsychiatric/Mental Health Nurse Practitioner1790150258
Verify Stephen N. Xenakis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD035229Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
15 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Stephen N. Xenakis among 474 psychiatry physician records in District of Columbia
Stephen N. Xenakis, MD is one of 474 psychiatry physician records with a practice address in District of Columbia. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 75% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileNo · 26% of these records are
- Record last updated2007 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
467 psychiatry physician records list a practice address in Washington
They are 467 of the 45,857 NPPES records with a practice address in Washington, and 474 psychiatry physician records in District of Columbia.
All 474 in District of Columbia → Every provider in Washington → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kumudini Attanagoda, MDWashington, DC 200161891801460
- Vincent Bono, M.D.Washington, DC 200161992843890
- Richard Chefetz, M.D.Washington, DC 200161780648832
- Sushila Chelliah, MDWashington, DC 200161730218512
- Tzvetelina Dimitrova, MDWashington, DC 200161952557969
- Kevin Kiernan, M.D.Washington, DC 200161790708188
- Katherine Marshall, MDWashington, DC 200161831101534
- Tracy Meyer, M.D.Washington, DC 200161639339864
Common questions
What is Stephen N. Xenakis, MD's NPI number?
Stephen N. Xenakis, MD's National Provider Identifier (NPI) is 1013929819, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen N. Xenakis, MD located?
The NPPES record lists a practice address at 4228 Wisconsin Ave NW, Washington, DC, 20016. Phone: (202) 885-5600. Providers update this record themselves, so call before visiting.
How can I verify Stephen N. Xenakis, MD's license?
NPPES lists District of Columbia license number MD035229, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stephen N. Xenakis, MD prescribe under Medicare Part D?
In 2024, Stephen N. Xenakis, MD had 15 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.