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About

Pulmonary and Critical Care Associates Pc is a Reston, Virginia-based health care practice offering pulmonology, critical care, and sleep medicine, including a Sleep Diagnostic Center. Key details: - Services: Board-certified pulmonology, critical care, and sleep medicine with diagnostic and treatment options. - Locations: Two offices in Reston, Virginia. - Contact: +1 703 318 8157; website vapcca.com. - Web presence: Moderate traffic (about 2,143 monthly visits) with a low bounce rate; primarily serves the United States. - Company notes: Public company listing; small practice with 1 employee highlighted (likely a proxy for core operations); positive employer reviews (4.5/5 from 2 reviews). If your focus is specifically on their Sleep Center in Reston, the site indicates the Sleep Diagnostic Center is part of their sleep medicine services, but no detailed sleep-center-specific info (e.g., services offered, hours, or appointment process) is provided in the excerpt. Consider visiting vapcca.com or contacting the office for precise sleep-center offerings and scheduling.

Clinic Type

Sleep Disorders Clinics

Address

Lansdowne / Leesburg Office: 19500 Gov. James A. Lee Hwy, Suite 102, Lansdowne, VA 20176 (or other Lansdowne/Leesburg office address as listed on site) Reston Office: 12300 Sunrise Valley Dr, Reston, VA 20191

Phone

833-433-8338

Email

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

Insurance & Payment

Languages Spoken

FAQs

What is Sleep Center at Pulmonary and Critical Care Associates & Sleep Diagnostic Center?

A complete sleep diagnostic laboratory to evaluate and treat sleep disorders with a three-bed laboratory in Reston; sleep study conducted overnight with certified technicians.

Photos

What Patients Say

Overall sentiment across review platforms: positive

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

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

"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

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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