Gastroenterology Specialists

Our doctors are friendly. are compassionate. are experts in their specialty.

Find the best doctor for you.

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.

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Gastroenterology

Mounzer Al Samman, MD Accepted Health Plans Gastroenterology

4520 Business Center Dr.,, Suite 180 Fairfield, CA
(707) 646-3555
- Accepting new patients
- Video visits available
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Nazia Hasan, MD, MPH Video Accepted Health Plans Gastroenterology, Interventional Endoscopy

4520 Business Center Dr., Suite 180 Fairfield, CA
(707) 646-3555
- Accepting new patients
- Video visits available
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Michael Krier, MD Accepted Health Plans Gastroenterology

4520 Business Center Drive,, Suite 180 Fairfield, CA
(707) 646-3555
- Accepting new patients
- Video visits available
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Primary Care

Center for Primary Care
Fairfield	(707) 646-5500
Green Valley	(707) 646-5500
Vacaville	(707) 646-5500
Center for Women's Health
Fairfield	(707) 646-4100

NorthBay Urgent Care

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Fairfield	(707) 646-4000
Vacaville	(707) 624-7400

Specialty Practices
Fairfield	(707) 646-4180
Vacaville	(707) 624-7999
Cancer Center
	(707) 624-8000
Center for Neuroscience
Fairfield	(707) 646-4370
Center for Women's Health
Fairfield	(707) 646-4100
Diabetes & Endocrinology
	(707) 624-8230
Gastroenterology
	(707) 646-3555
Heart & Vascular Center
Fairfield	(707) 646-4400
Orthopedics
Vacaville	(707) 624-7900
Fairfield	(707) 646-5599
Solano Diagnostic Imaging
Fairfield	(707) 646-4646
Vacaville	(707) 624-7575

Insurance	Medical Group	Hospitals	Surgery
Aetna HMO
Aetna: PPO, EPO, POS
Anthem Blue Cross HMO
Anthem Blue Cross PPO, EPO, POS, PPO/EPO
Anthem Blue Cross University of California Care PPO
Anthem Blue Cross: University of California Health Savings Plan
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
Blue Shield, Standard PPO, POS [Excludes: Individual Family Plan]
CalPERS: PERSCare (PPO), PERS Choice (PPO), PERS Select (PPO)
CHAMPVA
Cigna PPO, HMO, POS
Compass Rose Plan
Covered California: Western Health Advantage
Department of Corrections: Health Net
FEHB: Blue Cross Blue Shield PPO
First Health/Coventry PPO, EP
GEHA PPO Plans
Health Net PPO, POS, HMO
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
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 AARP Medicare Advantage Choice (PPO)
UnitedHealthcare Employer Retiree Medicare Advantage Plan PPO
UnitedHealthcare HMO
UnitedHealthcare Medicare Advantage Assure (HMO)
UnitedHealthcare PPO, EPO, POS
UnitedHealthcare, AARP MedicareComplete, SecureHorizons (HMO)
University of California Care PPO: Anthem Blue Cross
University of California Health Savings Plan: Anthem Blue Cross
Western Health Advantage
Western Health Advantage MyCare & MyCare Plus

Our doctors are friendly. are compassionate. are experts in their specialty.

Find the best doctor for you.

Gastroenterology

Advanced Health Practitioners