Gastroenterology Specialists in Fairfield, CA | Find A Gastroenterologist

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NorthBay Gastroenterology’s team of board-certified experts employs a variety of advanced treatments, from medications to minimally invasive endoscopic procedures and complex digestive endoscopy.

Gastroenterology

Mounzer Al Samman, MD Accepted Health Plans Gastroenterology

4520 Business Center Dr.,, Suite 180 Fairfield, CA 94534
(707) 646-3555

1010 Nut Tree Rd.,, Suite 100B Vacaville, CA 95687

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Michael Krier, MD Accepted Health Plans Gastroenterology

4520 Business Center Drive,, Suite 180 Fairfield, CA 94534
(707) 646-3555

1010 Nut Tree Rd.,, Suite 100B Vacaville, CA 95687

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Douglas Taylor, MD Accepted Health Plans Gastroenterology, Interventional Endoscopy

4520 Business Center Drive,, Suite 180 Fairfield, CA 94534
(707) 646-3555

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Charles Whang, MD Video Accepted Health Plans Gastroenterology

4520 Business Center Drive, Suite 180 Fairfield, CA 94534
(707) 646-3555

1010 Nut Tree Rd., Suite 100 Vacaville, CA

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Advanced Health Practitioners

Joel Ambrosio, PA Accepted Health Plans Advanced Health Practitioner, Gastroenterology

4520 Business Center Dr., Suite 180 Fairfield, CA 94534
(707) 646-3555

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Insurance	Medical Group	Hospitals	Surgery
Aetna HMO **
Aetna: PPO, EPO, POS (Excludes Medicare Advantage plans)
Anthem Blue Cross HMO **
Anthem Blue Cross PPO, POS
Anthem Blue Cross Medicare Advantage (PPO)
Anthem Dual Advantage (PPO D-SNP)(Medicare/Medi-Cal)
Anthem Medical Local Preferred Provider Organization (LPPO) (Out-of-state Blue Cross/Blue Shield Medicare Advantage PPO)
Blue Cross Blue Shield PPO (Out-of-State)
Blue Shield HMO: Access+, Local Access+ **
Blue Shield, Standard PPO, POS, Tandem PPO
CalPERS HMO plans - Western Health Advantage (WHA), Anthem Blue Cross Traditional HMO, Blue Shield Access+ **
CalPERS PPO plans- PERS Platinum (PPO) and PERS Gold (PPO)
Central Health Plan (specialty referral only)*
CHAMPVA
Cigna HMO, PPO, POS
Compass Rose Plan
Covered California: Western Health Advantage
FEHB: HMO – Western Health Advantage, Health Net of CA **
FEHB: PPO – Aetna Value PPO, Aetna MHBP, Aetna HDHP w/HSA, Aetna HealthFund CDHP, Aetna Direct, Blue Cross Blue Shield PPO
First Health/Coventry PPO, EP
GEHA PPO Plans
Health Net HMO: Blue & Gold, WholeCare **
Health Net PPO, POS
Health Smart EPO
Health Smart POS
Health Smart PPO
Mail Handlers Benefit Trust PPO, POS
Medi-Cal
Medicare
Medicare Supplemental Plans A-N (i.e. AARP, Mutual of Omaha, etc)
MultiPlan/Private Healthcare Systems (PHCS) PPO, POS
Networks by Design PPO
Partnership HealthPlan of CA (Currently not accepting new patients for Primary Care)
Private Healthcare Systems PPO, POS
Three Rivers Provider Network PPO
TRICARE (includes TRICARE for Life)
UnitedHealthcare PPO, EPO, POS
UnitedHealthcare AARP Medicare Advantage from UHC CA-033P (HMO)
UnitedHealthcare Employer Group Retiree Medicare Advantage Plan PPO & HMO
UnitedHealthcare HMO: Signature Value, Signature Value Focus **
UnitedHealthcare Medicare Advantage CA-001A (HMO)
UnitedHealthcare Complete Care Support Ca-8-AP (HMO C-SNP) Medicare Advantage
Western Health Advantage