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Clinic Type

Neurology

Address

Phone

Email

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

Insurance & Payment

Languages Spoken

What Patients Say

Overall sentiment across review platforms: very positive

  • Healthgrades (Dr. Nicholas Szumski): 4.7/5 (91 ratings)
  • Brian R. Gantwerker, MD (Internal practice data): 4.98/5 (286 reviews)
  • Healthgrades (Los Angeles Neurosurgery average): 4.2/5 (Average for 156 specialists)
  • Ethos Neuroscience Institute: 4.9/5 (Combined rating)

Patients praise

  • exceptional communication skills, with doctors explaining complex conditions using understandable terms and analogies
  • high levels of trust and compassion, with physicians described as kind, caring, and professional
  • expertise in treating complex, rare, or recurring neurological and neurosurgical conditions
  • favorable surgical outcomes and life-improving treatment results
  • dedication of medical staff and surgical teams, including Physician Assistants
  • prompt responsiveness, even outside of standard business hours in some cases

Common complaints

  • some patients noted inability to access preferred surgeons due to insurance restrictions (e.g., Medicare not accepted)
  • occasional concerns regarding administrative wait times or scheduling processes
  • rare instances of dissatisfied patient experiences, though these are significantly outweighed by positive feedback in public testimonials

"He is frequently described as a caring, compassionate physician who takes time to listen to patient concerns and tailors care to individual needs. Patients appreciate his thoroughness and attention to detail."

WebMD (Dr. Nestor Gonzalez)

"His extensive knowledge and his passion for practicing medicine are a breath of fresh air. I'm very grateful for his [care]."

Healthgrades (Dr. Nicholas Szumski)

"I’ve been delighted with my experience. Suffice it to say, I would highly recommend Dr. Barkhoudarian and his team at PNI."

Pacific Neuroscience Institute (Patient Story)

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 10, 2026.

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