Adam Patrick Callahan, PA-C - Medicare Physician Assistant in Charleston, SC

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Adam Patrick Callahan, PA-C is a medicare enrolled "Physician Assistant" in Charleston, South Carolina. He graduated from nursing school in 2008 and has 18 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice Charleston-amg Specialty Hospital Inc, Southeastern Hospitalist Services Pc 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) 724-2450.

Adam Patrick Callahan is licensed to practice in South Carolina (license number 2069) 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 1700038346.

Contact Information

Adam Patrick Callahan, PA-C
316 Calhoun St,
Charleston, SC 29401-1113
(843) 724-2450
(843) 724-2455

Map and Direction




Provider's Profile

Full NameAdam Patrick Callahan
GenderMale
SpecialityPhysician Assistant
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:
  • Adam Patrick Callahan graduated from nursing school in 2008
  NPI Data:
  • NPI Number: 1700038346
  • Provider Enumeration Date: 10/15/2008
  • Last Update Date: 05/28/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0749342392
  • Enrollment ID: I20150323000683

Medical Identifiers

Medical identifiers for Adam Patrick Callahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700038346NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 99034373A (Indiana)Secondary
363A00000XPhysician Assistant 2069 (South Carolina)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Trident Medical CenterCharleston, SCHospital
Musc Medical CenterCharleston, SCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Charleston-amg Specialty Hospital Inc761840786717
Southeastern Hospitalist Services Pc3476855420301

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. Adam Patrick Callahan allows following entities to bill medicare on his behalf.
Entity NameRoper Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104150739
PECOS PAC ID: 8426958919
Enrollment ID: O20041228000500
Entity NameAcs Primary Care Physicians - Southeast PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861430555
PECOS PAC ID: 5193620714
Enrollment ID: O20090401000270
Entity NameBon Secours St Francis Xavier Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740502822
PECOS PAC ID: 8325008717
Enrollment ID: O20100607000884
Entity NameRoper St. Francis Mount Pleasant Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629499298
PECOS PAC ID: 1658567326
Enrollment ID: O20110207000316
Entity NameSoutheastern Hospitalist Services PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003280108
PECOS PAC ID: 3476855420
Enrollment ID: O20160125000378
Entity NameRoper St Francis Hospital-berkeley Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295534956
PECOS PAC ID: 4981933256
Enrollment ID: O20191029001057
Entity NameImpact Physician Group South Carolina LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215521752
PECOS PAC ID: 9638579352
Enrollment ID: O20210616002604
Entity NameCharleston-amg Specialty Hospital Inc
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1174345318
PECOS PAC ID: 7618407867
Enrollment ID: O20250312000784

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. Adam Patrick Callahan 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
Adam Patrick Callahan, PA-C
Po Box 751649,
Charlotte, NC 28275-1649

Ph: (888) 472-0043		Adam Patrick Callahan, PA-C
316 Calhoun St,
Charleston, SC 29401-1113

Ph: (843) 724-2450

Reviews and Comments


Physician Assistant Nurses in Charleston, SC

Christian Anton Sung, PA-C
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Medicare: Accepting Medicare Assignments
Practice Location: 316 Calhoun St, Charleston, SC 29401
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Amy Lynn Canino, PA-C
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Elizabeth Poindexter,
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Phone: 865-647-5800    Fax: 865-647-5979
Jessica Marie Richgels, PA-C
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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.