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Clinic Type

Neurology

Address

2411 Dulles Corner Park Ste 475, Herndon, VA 20171

Phone

(866) 483-9690

Email

careers@ascension.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

Team

  • Joel S Cohen — MD
  • Allen S Mandir — MD, PhD
  • Robert E Minahan, Jr — MD
  • Ankit Nayyar — MD
  • Yessar M Hussain — MD
  • Kaneez Zahra — MD
  • Navreet Kaur — MD
  • Catherine D Griffin — MD

Insurance & Payment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Vitals: 4.7/5 (43)
  • FindATopDoc: 4/5 (86)
  • WebMD Care: 4/5 (50)
  • U.S. News & World Report: 5/5 (249)

Patients praise

  • personable and attentive doctor care
  • effective diagnosis and treatment for migraines and neurological conditions
  • courteous administrative staff (reported in some instances)
  • clear explanation of conditions and treatments

Common complaints

  • difficulties reaching office staff via phone
  • reports of inconsistent call-backs
  • perceived lack of responsiveness from support staff

"calling for a week straight every day and never got a call back.. finally I reached him... [The doctor is] personable and does everything he can to make you comfortable, and get a correct diagnosis with testing."

Vitals review for Dr. Shabih Hasan

"Staff was courteous [Did Well - 50 ratings]"

WebMD Care patient satisfaction data for Dr. Tajammul Ehsan

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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Herndon, VA·Neurology

Dulles Neurology Clinic is a small neurology practice based in Herndon, Virginia, serving Northern Virginia for about 25 years. The clinic operates 3 offices in the area and focuses on general neurology and related health diagnostics, including sleep-related services. Key details: - Location: 722 Grant St Ste F, Herndon, VA 20170 (plus additional Herndon offices) - Industry: Medical Practice (Neurology) - Services: General neurology and related health diagnostics (potentially including sleep lab services) - Contact: (703) 787-7638 - Workforce: 3 employees - Website: dullesneuro.com - Local presence: Active in Northern Virginia community, with monthly site traffic around 764 visits and low bounce rate (0.4%) Note: User reviews currently show an employer rating of 0.0/5.0. If you need directions, appointment availability, or a list of specific neurology services, I can check further.

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Herndon, VA·Neurology

Neurology Center of Fairfax is a private medical practice in Fairfax, Virginia, specializing in brain, spinal cord, nerves, and muscle care. Key details: - Locations: 6 offices in Virginia (including HQ at 3020 Hamaker Ct, Fairfax). Services likely cover Fairfax and surrounding areas (Herndon not explicitly listed as a location). - Services: Neurology-focused care for brain, spinal cord, nerves, and muscle conditions. - Size: About 22 employees; annual revenue around $7.9M. - Leadership: Terri Radziewski (Director, Quality & Programs) and Aaron Guiggey (Director of Accounting). - Contact: Main numbers include 571-308-1158 and 703-876-2850/0866/0800/574-0867; website neurologycenteroffairfax.com. If you’re seeking care specifically in Herndon, contact the center to confirm whether a nearby office or tele-neurology options are available.

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