Dr William G Costello, MD - Medicare Emergency Medicine in Milledgeville, GA

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Dr William G Costello, MD is a medicare enrolled "Emergency Medicine" physician in Milledgeville, Georgia. He went to Boston University School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Athens Clarke Medical Enterprises Llc, Emergency Medicine Services Of Maine Llc and his current practice location is 821 N Cobb St, Milledgeville, Georgia. You can reach out to his office (for appointments etc.) via phone at (478) 454-3795.

Dr William G Costello is licensed to practice in Georgia (license number 061570) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1629227145.

Contact Information

Dr William G Costello, MD
821 N Cobb St,
Milledgeville, GA 31061-2343
(478) 454-3795
(478) 454-3969

Map and Direction




Physician's Profile

Full NameDr William G Costello
GenderMale
SpecialityEmergency Medicine
Experience35 Years
Location821 N Cobb St, Milledgeville, Georgia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William G Costello attended and graduated from Boston University School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1629227145
  • Provider Enumeration Date: 09/09/2008
  • Last Update Date: 06/22/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 6709943061
  • Enrollment ID: I20090401000142

Medical Identifiers

Medical identifiers for Dr William G Costello such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1629227145NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 193444-1 (New York)Secondary
207P00000XEmergency Medicine MD25476 (Maine)Secondary
207P00000XEmergency Medicine 061570 (Georgia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northern Light Maine Coast HospitalEllsworth, MEHospital
St. Mary's Good Samaritan HospitalGreensboro, GAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Athens Clarke Medical Enterprises Llc054769868026
Emergency Medicine Services Of Maine Llc105265761644

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr William G Costello allows following entities to bill medicare on his behalf.
Entity NamePhoebe Putney Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992789721
PECOS PAC ID: 4486559549
Enrollment ID: O20031203000397
Entity NameEmergency Coverage Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427005008
PECOS PAC ID: 3072412592
Enrollment ID: O20050411000056
Entity NameAugusta Physicians Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518169168
PECOS PAC ID: 6608977251
Enrollment ID: O20070726000065
Entity NameAthens Clarke Medical Enterprises Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295370542
PECOS PAC ID: 0547698680
Enrollment ID: O20200324000216

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr William G Costello is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr William G Costello, MD
3722 Walton Way Ext, Apt. # 223,
Augusta, GA 30907-2436

Ph: (706) 642-0926		Dr William G Costello, MD
821 N Cobb St,
Milledgeville, GA 31061-2343

Ph: (478) 454-3795

Reviews and Comments


Emergency Medicine Doctors in Milledgeville, GA

Carol Scott, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 821 N Cobb St, Milledgeville, GA 31061
Phone: 478-454-3830    
Robert B Little, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 821 N. Cobb St., Milledgeville, GA 31061
Phone: 478-454-3795    Fax: 478-454-3969
James Franklin Hatcher Jr., M.D., F.A.C.E.P.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 821 N Cobb St, Milledgeville, GA 31061
Phone: 478-454-3550    
Dr. Harold Adam Gage, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 821 N Cobb St, Milledgeville, GA 31061
Phone: 478-776-4000    
Dr. Sarah Rose Mack, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 821 N Cobb St, Milledgeville, GA 31061
Phone: 478-454-3795    Fax: 478-454-3969
Dr. Sophenia Rebecca Gay, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 821 N Cobb St, Milledgeville, GA 31061
Phone: 478-454-3795    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.