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

William M Farmer, DO

Individual provider Gastroenterology Physician · NPI 1558374850

William M Farmer, DO is an Emergency Medicine in Hattiesburg, Mississippi. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2002, 24 years ago. Practices with Gastrointestinal Associates PA, a 45-clinician group and accepts Medicare assignment. Licensed in Mississippi.

Years since qualifying
24
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
MS
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

100 Methodist Blvd
Hattiesburg, MS 39402-1295
Phone: (601) 268-5185
Fax: (601) 268-5185
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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 18326 (MS)

Record details

NPI number1558374850
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 15, 2006
Last updated in NPPESSeptember 14, 2016

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesGASTROENTEROLOGY, INTERNAL MEDICINE
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 2002 (24 years in practice)
Group practice Gastrointestinal Associates Pa — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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