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

Dr. William G Costello, MD

Individual provider Emergency Medicine Physician · NPI 1629227145

Dr. William G Costello, MD is an Emergency Medicine in Milledgeville, Georgia. Graduated from Boston University School of Medicine in 1989, 37 years ago. Practices with Emergency Medicine Services of Maine LLC, a 57-clinician group and accepts Medicare assignment. Licensed in Georgia, Maine and New York.

Years since qualifying
37
Trained at
Boston University School of Medicine
Licensed in
GA, ME, NY
In the registry since
2008
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

821 N Cobb St
Milledgeville, GA 31061-2343
Phone: (478) 454-3795
Fax: (478) 454-3969
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 061570 (GA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 193444-1 (NY)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD25476 (ME)

Record details

NPI number1629227145
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 9, 2008
Last updated in NPPESJune 22, 2023
Certification dateJune 22, 2023
Mailing address3722 Walton Way Ext, Apt. # 223, Augusta, GA 30907-2436

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Emergency Medicine Services Of Maine Llc — 57 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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