NPPES file of Aug 9, 2026

Oleksandr Semeniuk, M.D.

Infectious Disease Physician · Washington, DC

Oleksandr Semeniuk, M.D. is an infectious disease physician with a practice address in Washington, District of Columbia, and NPI 1528452794, issued on Mar 25, 2015. Check the license (District of Columbia MD048339, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528452794
Name
Oleksandr Semeniuk
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License numbers
MD048339 DC
D0085087 MD
Self-reported in NPPES; status is on the state search
Practice location
2150 Pennsylvania Ave NW, Washington, DC 20037
Phone
(202) 741-3440
Enumerated
Mar 25, 2015
Record last updated
Mar 11, 2025
Fax
(202) 741-2241
Medicare enrollment
Enrolled (PECOS I20180710003649); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2150 Pennsylvania Ave NW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ahmad AalamStudent in an Organized Health Care Education/Training Program1851786909
  2. Nawaf Abaalkhail, MDCritical Care Medicine (Internal Medicine) Physician1104246958
  3. Theophilus Abah, MDAnesthesiology Physician1245810696
  4. Yoosif Abdalla, MDNephrology Physician1679851760
  5. Rim Abdallah, M.D.Student in an Organized Health Care Education/Training Program1962896886
  6. Rami AbdulbakiAnatomic Pathology & Clinical Pathology Physician1851950109

Verify Oleksandr Semeniuk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD048339
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the District of Columbia license search

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79% fewer Medicare Part D claims than the average infectious disease physician in 2024

144 Medicare Part D claims for 37 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. Oleksandr Semeniuk144
  2. Specialty average689

Most prescribed

  1. Daptomycin23 claims
  2. Biktarvy20 claims
  3. Amoxicillin-Clavulanate Potass12 claims
  4. Ertapenem12 claims
  5. Ceftriaxone11 claims

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.

Industry payments in 2024: $284.63

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Oleksandr Semeniuk$284.63
  2. Specialty average$4,362.19

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Medical Faculty Associates, IncWashington, DC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Oleksandr Semeniuk among 110 infectious disease physician records in District of Columbia

Oleksandr Semeniuk, M.D. is one of 110 infectious disease physician records with a practice address in District of Columbia. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 85% of them.

  • NPI issued2015 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2006 · median 1998 among the 46 with a school on file
  • Record last updated2025 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X 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).

Infectious Disease Physician providers in District of Columbia

There are 110 infectious disease physician records in District of Columbia.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Hana Akselrod, MD, MPHWashington, DC 200371295171353
  2. Susan Bersoff-Matcha, MDWashington, DC 200371801954714
  3. Zena Hammoud, MDWashington, DC 200371457444168
  4. Rachel Harold, M.D.Washington, DC 200371659715787
  5. Morad Hassani, M.D.Washington, DC 200371295851954
  6. Jose Lucar, M.D.Washington, DC 200371780970772
  7. Henry Masur, MDWashington, DC 200371083782304
  8. David Parenti, M.D.Washington, DC 200371588733216

Common questions

What is Oleksandr Semeniuk, M.D.'s NPI number?

Oleksandr Semeniuk, M.D.'s National Provider Identifier (NPI) is 1528452794, issued on Mar 25, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Oleksandr Semeniuk, M.D. located?

The NPPES record lists a practice address at 2150 Pennsylvania Ave NW, Washington, DC, 20037. Phone: (202) 741-3440. Providers update this record themselves, so call before visiting.

How can I verify Oleksandr Semeniuk, M.D.'s license?

NPPES lists District of Columbia license number MD048339, 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 Oleksandr Semeniuk, M.D. prescribe under Medicare Part D?

In 2024, Oleksandr Semeniuk, M.D. had 144 Medicare Part D claims for 37 beneficiaries; the average among infectious disease physician prescribers was 689. 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.