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Sleep Disorders ClinicsReston, VA

★★★★★4.5/536 reviews across 1 platforms

Ratings by platform

  • WebMD and Vitals: 4.5 out of 5 stars (for Dr. Rennert) (36 ratings & reviews (for Dr. Naghshin))

What patients say

Patients praise

  • knowledgeable and thorough physicians
  • caring and compassionate bedside manner
  • friendly and professional staff
  • effective treatment of respiratory and sleep disorders

Common complaints

  • difficulty scheduling appointments

In patients' words

"I am generally hard to please, but I cannot complain about anything except wish was easier to get an appointment! Respectful and courteous towards patients, compassionate and knowledgeable. Spent time listening and did not rush to get out."

Patient testimonial on official practice website

"Very happy with Dr. Nagshin. The staff are amazing. The scheduling was fairly quick. Overall no complaints! Thank you..."

Vitals.com patient review

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7][8].

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