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Allergy/Immunology

Sadia Hayat Khan, MD

Sees patients in Chevy Chase, MD · Vienna, VA · Falls Church, VA … · Maryland, Virginia

Summary

Dr. Sadia Hayat Khan, MD is an allergist and immunologist at 2 Wisconsin Cir, Suite 250, Chevy Chase, MD 20815. Phone: (301) 962-5800. Accepts Medicare assignment. In 2024, Sadia Hayat Khan had 31 Original Medicare patients and 172 services. NPI 1932315769. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 2 Wisconsin Cir, Suite 250, Chevy Chase, MD 20815 · Directions (3 more locations)
  • Phone: (301) 962‑5800
  • Medicare: Accepts Medicare assignment
  • Group practice: Privia Medical Group, LLC (+1 more)
  • Medical school: graduated 1999 (27 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Sadia Hayat Khan, 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 Sadia Hayat Khan accept Medicare assignment?
Yes. Medicare's clinician data says Sadia Hayat Khan 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 Sadia Hayat Khan see?
In 2024, CMS data shows 31 Original Medicare patients and 172 services for Sadia Hayat Khan. This counts Original Medicare only and measures volume, not quality.
What is Sadia Hayat Khan's NPI number?
1932315769. 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 Sadia Hayat Khan, 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 patients31
Services billed to Medicare172
Different services or procedures14
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)36 services
  2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)11 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%
  • Arthritis61%
  • High blood pressure52%
  • Asthma39%

Practice locations

Addresses where Sadia Hayat Khan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sadia Hayat Khan as a member of these groups (CMS data updated October 2, 2026).

  • Privia Medical Group, LLC1,533 clinicians in the group
  • Institute for Asthma and Allergy PC13 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Maryland →

Other allergist and immunologists in Chevy Chase

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

All allergist and immunologists in Chevy Chase →

Other clinicians in Privia Medical Group, LLC

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

Clinician information

CredentialMD
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932315769
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