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Otolaryngology

Leslie F. Hao, MD

Works at hospitals in Washington, DC · District of Columbia

Summary

Dr. Leslie F. Hao, MD is an ENT doctor at 5530 Wisconsin Ave, Suite 1500, Chevy Chase, MD 20815. Phone: (301) 656-8630. Accepts Medicare assignment. In 2024, Leslie F. Hao had 685 Original Medicare patients and 2,088 services. NPI 1194870790. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: ENT doctor (Medicare lists Otolaryngology)
  • Address: 5530 Wisconsin Ave, Suite 1500, Chevy Chase, MD 20815 · Directions
  • Phone: (301) 656‑8630
  • Medicare: Accepts Medicare assignment
  • Hospital: Sibley Memorial Hospital
  • Group practice: Chevy Chase Ent Associates, LLC
  • Medical school: Columbia University College Of Physicians And Surgeons · graduated 1996 (30 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 Leslie F. Hao, 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 Leslie F. Hao accept Medicare assignment?
Yes. Medicare's clinician data says Leslie F. Hao 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 Leslie F. Hao see?
In 2024, CMS data shows 685 Original Medicare patients and 2,088 services for Leslie F. Hao. This counts Original Medicare only and measures volume, not quality.
What is Leslie F. Hao's NPI number?
1194870790. 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 Leslie F. Hao, 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 patients685
Services billed to Medicare2,088
Different services or procedures30
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)730 services
  2. Removal of impacted ear wax (69210)476 services
  3. Diagnostic exam of nasal passages using an endoscope (31231)331 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)163 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)141 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure63%
  • Arthritis47%
  • Osteoporosis24%
  • Ischemic heart disease23%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)19%

Hospitals where Leslie F. Hao works

Medicare's Facility Affiliation Data lists Leslie F. Hao at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Leslie F. Hao is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Leslie F. Hao as a member of this group (CMS data updated October 2, 2026).

  • Chevy Chase Ent Associates, LLC6 clinicians in the group

Specialties

Find other Otolaryngology doctors in Maryland →

Other ENT doctors in Chevy Chase

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

All ENT doctors in Chevy Chase →

Other clinicians in Chevy Chase Ent Associates, LLC

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

Clinician information

CredentialMD
Medical schoolColumbia University College Of Physicians And Surgeons
Graduation year1996 (30 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1194870790
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians