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Obstetrics/Gynecology

Helain Landy, MD

Sees patients in Washington, DC · Olney, MD · Baltimore, MD · District of Columbia, Maryland

Summary

Dr. Helain Landy, MD is an OB-GYN at 1145 19th St NW, 311 Mmg at 19th Street NW, Washington, DC 20036. Phone: (202) 429-2401. Accepts Medicare assignment. NPI 1588663744. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1145 19th St NW, 311 Mmg at 19th Street NW, Washington, DC 20036 · Directions (3 more locations)
  • Phone: (202) 429‑2401
  • Medicare: Accepts Medicare assignment
  • Group practice: MedStar Medical Group II LLC
  • Medical school: Northwestern University Feinberg Medical School · graduated 1982 (44 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Helain Landy, 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 Helain Landy accept Medicare assignment?
Yes. Medicare's clinician data says Helain Landy 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.
What is Helain Landy's NPI number?
1588663744. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

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

Group practices

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

  • MedStar Medical Group II LLC3,767 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in District of Columbia →

Other OB-GYNs in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

All OB-GYNs in Washington →

Other clinicians in MedStar Medical Group II LLC

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

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year1982 (44 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588663744
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians