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Psychiatry

Ilian Bandaranayake, MD

Sees patients in Rockville, MD · Norfolk, VA · Maryland, Virginia

Summary

Dr. Ilian Bandaranayake, MD is a psychiatrist at 321 Beall Ave, Rockville, MD 20850. Phone: (757) 756-5600. Accepts Medicare assignment. In 2024, Ilian Bandaranayake had 13 Original Medicare patients and 71 services. NPI 1356462899. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 321 Beall Ave, Rockville, MD 20850 · Directions (1 more location)
  • Phone: (757) 756‑5600
  • Medicare: Accepts Medicare assignment
  • Group practice: City of Norfolk
  • Medical school: Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University · graduated 2004 (22 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Ilian Bandaranayake, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ilian Bandaranayake accept Medicare assignment?
Yes. Medicare's clinician data says Ilian Bandaranayake accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ilian Bandaranayake see?
In 2024, CMS data shows 13 Original Medicare patients and 71 services for Ilian Bandaranayake. This counts Original Medicare only and measures volume, not quality.
What is Ilian Bandaranayake's NPI number?
1356462899. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ilian Bandaranayake, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients13
Services billed to Medicare71
Different services or procedures6
Participating Medicare providerYes
Average age of these patients49

Practice locations

Addresses where Ilian Bandaranayake is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ilian Bandaranayake as a member of this group (CMS data updated October 2, 2026).

  • City of Norfolk17 clinicians in the group

Specialties

Find other Psychiatry doctors in Maryland →

Other psychiatrists in Rockville

Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.

All psychiatrists in Rockville →

Other clinicians in City of Norfolk

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
Graduation year2004 (22 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1356462899
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians