William F Marsteller Iv, MD - Medicare Gastroenterology in Charleston, SC

William F Marsteller Iv, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Charleston, South Carolina. He went to Ohio State University College Of Medicine and graduated in 2006 and has 18 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Charleston Gastroenterology Specialists and his current practice location is 1962 Charlie Hall Blvd., Charleston, South Carolina. You can reach out to his office (for appointments etc.) via phone at (843) 722-8000.

William F Marsteller Iv is licensed to practice in South Carolina (license number 32824) 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 1992917504.

Contact Information

William F Marsteller Iv, MD
1962 Charlie Hall Blvd.,
Charleston, SC 29414
(843) 722-8000
(843) 647-6066

Map and Direction




Physician's Profile

Full NameWilliam F Marsteller Iv
GenderMale
SpecialityGastroenterology
Experience18 Years
Location1962 Charlie Hall Blvd., Charleston, South Carolina
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:
  • William F Marsteller Iv attended and graduated from Ohio State University College Of Medicine in 2006
  NPI Data:
  • NPI Number: 1992917504
  • Provider Enumeration Date: 05/04/2007
  • Last Update Date: 05/07/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 7719037423
  • Enrollment ID: I20130606000004

Medical Identifiers

Medical identifiers for William F Marsteller Iv such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992917504NPI-NPPES
GP0680MedicaidSC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 32824 (South Carolina)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Bon Secours-st Francis Xavier HospitalCharleston, SCHospital
Roper St Francis Hospital-berkely IncMoncks corner, SCHospital
Roper HospitalCharleston, SCHospital
Mount Pleasant HospitalMount pleasant, SCHospital
Musc Medical CenterCharleston, SCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Charleston Gastroenterology Specialists317343747259

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. William F Marsteller Iv allows following entities to bill medicare on his behalf.
Entity NameCharleston Gastroenterology Specialists
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205835865
PECOS PAC ID: 3173437472
Enrollment ID: O20031119000237

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. William F Marsteller Iv 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
William F Marsteller Iv, MD
2001 2nd Ave Ste 101,
Summerville, SC 29486-7887

Ph: (843) 793-5182
William F Marsteller Iv, MD
1962 Charlie Hall Blvd.,
Charleston, SC 29414

Ph: (843) 722-8000

Reviews and Comments


Internal Medicine Doctors in Charleston, SC

Dr. Jeffrey Peter Yourshaw, M.D.
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Paige Nicole Laverick, PA-C
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Amit Agrawal, MD
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Phone: 843-792-1414    
Yevgeniy Gelfand, MD
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Practice Location: 67 President St, Charleston, SC 29425
Phone: 843-792-0111    

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).

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