Dr John David Williamson, MD - Medicare Family Practice in Charleston, SC

Dr John David Williamson, MD is a medicare enrolled "Family Medicine" physician in Charleston, South Carolina. He went to Medical University Of South Carolina College Of Medicine and graduated in 2006 and has 18 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice 24 On Physicians Of Sc Llc and his current practice location is 316 Calhoun St, Charleston, South Carolina. You can reach out to his office (for appointments etc.) via phone at (843) 402-1000.

Dr John David Williamson is licensed to practice in South Carolina (license number 29084) 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 1043308661.

Contact Information

Dr John David Williamson, MD
316 Calhoun St,
Charleston, SC 29401-1113
(843) 402-1000
Not Available

Map and Direction




Physician's Profile

Full NameDr John David Williamson
GenderMale
SpecialityFamily Practice
Experience18 Years
Location316 Calhoun St, 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:
  • Dr John David Williamson attended and graduated from Medical University Of South Carolina College Of Medicine in 2006
  NPI Data:
  • NPI Number: 1043308661
  • Provider Enumeration Date: 10/10/2006
  • Last Update Date: 07/09/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6204986565
  • Enrollment ID: I20200306001486

Medical Identifiers

Medical identifiers for Dr John David Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1043308661NPI-NPPES
1512962MedicaidTN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 44600 (Tennessee)Secondary
207Q00000XFamily Medicine 29084 (South Carolina)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Roper St Francis Hospital-berkely IncMoncks corner, SCHospital
Bon Secours-st Francis Xavier HospitalCharleston, SCHospital
Roper HospitalCharleston, SCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
24 On Physicians Of Sc Llc589012734498

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 John David Williamson allows following entities to bill medicare on his behalf.
Entity Name24 On Physicians Of Sc Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144877655
PECOS PAC ID: 5890127344
Enrollment ID: O20191121001203

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 John David Williamson 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 John David Williamson, MD
1985 Planters Dr,
Charleston, SC 29414-6255

Ph: () -
Dr John David Williamson, MD
316 Calhoun St,
Charleston, SC 29401-1113

Ph: (843) 402-1000

Reviews and Comments


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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.