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About

It offers family medicine for all ages, including behavioral health, chronic pain management, immunizations, routine exams, referrals, and virtual care. The clinic operates from 3 offices in Utah (Salt Lake City and Park City area) with a very small staff (3 employees). Primary contact numbers are 435-940-9400 and 435-940-9405.

Clinic Type

Internal Medicine

Address

70 Cattail Drive Lewistown, MT 59457

Phone

//385-297-4198

Email

intermountainnews@imail.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Primary care
  • Family medicine
  • Senior primary care
  • Pediatrics

Team

  • Jason Edward Sarisky — DO
  • Penny M. Denning — PA

Insurance & Payment

—

Languages Spoken

—

Current Offers

New patient appointments

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Intermountain Health Official Provider Pages: 4.7 out of 5 (~23-26 reviews)
  • Intermountain Health Official Provider Pages: 4.4-4.5 out of 5 (~9 reviews)

Patients praise

  • Providers are frequently described as knowledgeable, caring, and professional
  • Good communication, active listening, and ease of scheduling appointments
  • Patients feel like partners in their healthcare and appreciate having options explained

Common complaints

  • Some patients felt dismissed or that concerns were not adequately addressed during visits
  • Occasional perception that providers needed time to review patient background during appointments
  • Concerns regarding thoroughness of physical examinations in certain instances

"Caring, exceptionally knowledgeable! And kind & efficient!!!"

— Patient review for Dr. Jason Sarisky

"He did not take any time to examine my symptoms, made a snap decision, and dismissed me."

— Patient review for Dr. Jason Sarisky

"Penny is great to communicate with. She takes the time to explain and answer questions."

— Patient review for Penny M. Denning, PA

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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