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Michael James Krier, MD, Fairfield

Michael James Krier, MD

Gastroenterology • Fairfield, CA

About

Dr. Michael James Krier, MD is a gastroenterologist in Fairfield, CA who treats adults and older adults with digestive and liver conditions including GERD, dysphagia, colorectal cancer screening, and inflammatory bowel disease. He is accepting new patients and offers video visits through NorthBay Healthcare Group.

Clinic Type

Gastroenterology

Address

4520 Business Center Drive, Suite 180, Fairfield, CA 94534

Phone

(707) 646-3555

Email

dfowler@northbay.org

Opening Hours

Not published — contact the clinic to confirm hours.

Telehealth

Video Visits Available

Services Offered

  • Gastroenterology

Team

  • Michael James Krier, MD, MD — Gastroenterologist

Insurance & Payment

  • Aetna HMO
  • Anthem Blue Cross HMO (specialty referral only)
  • Anthem MediBlue Access (PPO) Medicare Advantage
  • Anthem MediBlue Dual Access (PPO D-SNP)(Medicare/Medi-Cal)
  • Anthem Medical Local Preferred Provider Organization (LPPO)
  • (Out-of-state Blue Cross/Blue Shield Medicare Advantage PPO)
  • Anthem Medicare Preferred PPO Plan
  • Blue Cross Blue Shield PPO
  • Brand New Day Medicare Advantage Plan (specialty referral only)
  • CalPERS: Anthem Blue Cross Traditional HMO
  • CalPERS: PERS Platinum (PPO) and PERS Gold (PPO)
  • CHAMPVA
  • Compass Rose Plan
  • Covered California: Anthem Blue Cross PPO
  • Covered California: Blue Shield HMO
  • Covered California: Western Health Advantage
  • FEHB: Blue Cross Blue Shield PPO
  • GEHA PPO Plans
  • Health Smart POS
  • Health Smart PPO
  • Medi-Cal
  • Medicare
  • Partnership HealthPlan of CA (Currently not accepting new patients for Primary Care)
  • TRICARE (includes TRICARE for Life)
  • UnitedHealthcare AARP Medicare Advantage Choice (PPO)
  • UnitedHealthcare AARP Medicare Advantage Focus (HMO-POS)
  • UnitedHealthcare Employer Retiree Medicare Advantage Plan PPO
  • UnitedHealthcare Medicare Advantage Assure (HMO)
  • Western Health Advantage
  • Western Health Advantage MyCare & MyCare Plus

Languages Spoken

—

FAQs

What are the hours for Dr. Krier?

The page does not provide specific opening hours.

Is the clinic accepting new patients?

Yes, accepting new patients.

Are video visits available?

Video visits available.

Photos

What Patients Say

Overall sentiment across review platforms: very positive

  • US News Doctors: 5/5 (90)
  • Healthgrades: 5.0/5.0 (53)
  • Yelp: Not explicitly rated/star-scored as an aggregate (3)

Patients praise

  • Highly recommended by patients
  • Thorough, professional, and empathetic care
  • Comfortable and successful procedures (endoscopy/colonoscopy)
  • Clear and insightful communication

Common complaints

  • Limited review volume on some platforms

"I can report that Dr. Krier performed the most comfortable and thorough upper and lower scopes of the five procedures I had undergone... I could see that he was concerned about my welfare and comfort. I offer my highest recommendation to any patients seeking a skilled and empathetic gastroenterologist."

— Healthgrades

"Dr. Krier is my one of my absolute Favorite folks on this earth. He actually saved my life."

— Yelp

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

Information sourced from the clinic's website as of . Own this clinic? Claim or correct this listing.

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