Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Nazia Hasan, MD, MPH

Individual provider Gastroenterology Physician · NPI 1831394667

Dr. Nazia Hasan, MD, MPH is a Gastroenterology in Fairfield, California. Graduated from George Washington University School of Medicine in 2007, 19 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
19
Trained at
George Washington University School of Medicine
Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

4520 Business Center Dr Ste 180
Fairfield, CA 94534
Phone: (707) 646-3555
Fax: (707) 646-3556
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4150 Clement St, San Francisco, CA 94121-1563 — (415) 750-4126

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A137560 (CA)

Record details

NPI number1831394667
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MPH
Sole proprietorNo
NPI enumeratedJune 20, 2007
Last updated in NPPESSeptember 26, 2022
Certification dateSeptember 26, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Fairfield