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

Dr. William Preston Sonnier, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1386089001

Dr. William Preston Sonnier, MD is a Gastroenterology in Mobile, Alabama. Graduated from University of South Alabama College of Medicine in 2013, 13 years ago. Practices with USA Health Physician Billing Services LLC, a 340-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Alabama.

Years since qualifying
13
Trained at
University of South Alabama College of Medicine
Licensed in
AL
In the registry since
2013
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2451 Fillingim St
Mobile, AL 36617-2238
Phone: (251) 471-7891
Fax: (251) 470-1291
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 33522 (AL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (AL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 33522 (AL)

Record details

NPI number1386089001
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 8, 2013
Last updated in NPPESMay 31, 2019

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF SOUTH ALABAMA COLLEGE OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Usa Health Physician Billing Services Llc — 340 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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