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Internal Medicine in Simi Valley - ProviderMatch

Internal Medicine • Simi Valley, CA

About

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Clinic Type

Internal Medicine

Address

—

Phone

818-246-5900

Email

—

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://doctors.adventisthealth.org/specialty/Internal%20Medicine/near/Simi%20Valley?page=1

Services Offered

—

Team

  • Ruzanna R Alexanian — MD
  • James Darrell Mosson — MD
  • Ali Ghassan Darwish — MD
  • Syed A Hasan — MD
  • Mohammad A Chaudhry — MD
  • Brittney Blair Mensen — DO
  • Robert Brian Cardenas — PA-C
  • Lymar G Bik — MD
  • Courtney Margaret Craigan — FNP
  • Hector M De Jesus — MD
  • Susan T Locke — MD
  • Edmund See-Ming Ho — MD

Insurance & Payment

—

Languages Spoken

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Social Media

TwitterYoutubeFacebookLinkedinInstagram

Photos

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What Patients Say

Overall sentiment across review platforms: mixed

  • UCLA Health (Dr. Diana Sarkisyan): 4.8/5 (92 reviews (144 ratings))
  • Healthgrades (Dr. Archana Kulai): 4.9/5 (344 reviews)
  • Birdeye (Adventist Health Simi Valley): Not specified (3,575 reviews)

Patients praise

  • Professional and personable care
  • Effective communication and active listening by physicians
  • Thorough examinations and proactive health monitoring
  • Responsive and supportive staff in certain departments

Common complaints

  • Difficulty reaching office staff via phone
  • Communication delays regarding prescription refills
  • Mismatch in medical philosophy between patient and provider

"Dr. Sarkisyan is terrific! So personable, professional and a great listener."

— UCLA Health patient review

"Dr. Kulai is the best takes her time discusses everything and explains so I can understand it."

— Healthgrades patient review

"I have tried calling the office multiple times and I have pressed every prompt from scheduling to infectious disease and NO one answers the phone... the staff does not believe in customer services."

— Birdeye patient review (Adventist Health Simi Valley)

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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