John W Gnann Jr, MD - Medicare Internal Medicine in Charleston, SC

John W Gnann Jr, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Charleston, South Carolina. He went to Duke University School Of Medicine and graduated in 1978 and has 46 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice University Medical Associates Of The Medical University Of South Carol and his current practice location is 171 Ashley Ave, Charleston, South Carolina. You can reach out to his office (for appointments etc.) via phone at (843) 792-1414.

John W Gnann Jr is licensed to practice in South Carolina (license number AL35447) 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 1467498659.

Contact Information

John W Gnann Jr, MD
171 Ashley Ave,
Charleston, SC 29425-8908
(843) 792-1414
Not Available



Physician's Profile

Full NameJohn W Gnann Jr
GenderMale
SpecialityInternal Medicine
Experience46 Years
Location171 Ashley Ave, 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:
  • John W Gnann Jr attended and graduated from Duke University School Of Medicine in 1978
  NPI Data:
  • NPI Number: 1467498659
  • Provider Enumeration Date: 06/22/2006
  • Last Update Date: 10/22/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 0143415786
  • Enrollment ID: I20130327000529

Medical Identifiers

Medical identifiers for John W Gnann Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467498659NPI-NPPES
C73388OtherALVIVA
051510652OtherALBLUE CROSS
110028646OtherALRAILROAD MEDICARE
9928OtherALHEALTHSPRING OF ALABAMA
000080315OtherALBLUE CROSS
000080315MedicaidAL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 08890 (Alabama)Secondary
207RI0200XInternal Medicine - Infectious Disease AL35447 (South Carolina)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Medical Associates Of The Medical University Of South Carol63057585741297

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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. John W Gnann Jr allows following entities to bill medicare on his behalf.
Entity NameUniversity Medical Associates Of The Medical University Of South Carol
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043241110
PECOS PAC ID: 6305758574
Enrollment ID: O20031105000291

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Entity NameGeorgetown Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982604021
PECOS PAC ID: 8224942123
Enrollment ID: O20031114000600

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Entity NameWaccamaw Community Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972503910
PECOS PAC ID: 9133036932
Enrollment ID: O20031126000386

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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. John W Gnann Jr 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
John W Gnann Jr, MD
Po Box 751461,
Charlotte, NC 28275-1461

Ph: (843) 792-6200
John W Gnann Jr, MD
171 Ashley Ave,
Charleston, SC 29425-8908

Ph: (843) 792-1414

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Internal Medicine Doctors in Charleston, SC

Dr. Jeffrey Peter Yourshaw, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 169 Ashley Ave, Room 202 Main Hospital Msc 333, Charleston, SC 29425
Phone: 843-876-4807    Fax: 843-876-4809
Jennifer Lee Martin, D.O.
Infectious Disease
Medicare: Not Enrolled in Medicare
Practice Location: 171 Ashley Ave, Charleston, SC 29425
Phone: 843-792-1414    
Nikko Rowe Asuncion Tabliago, MD
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 169 Ashley Ave Rm 202, Charleston, SC 29425
Phone: 843-792-2575    
Moses K Asempah, MD
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 169 Ashley Avenue, Room 202 Main Hospital Msc333, Charleston, SC 29425
Phone: 717-491-3745    
Paige Nicole Laverick, PA-C
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 171 Ashley Ave, Charleston, SC 29425
Phone: 843-792-1414    
Amit Agrawal, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 171 Ashley Ave, Charleston, SC 29425
Phone: 843-792-1414    
Yevgeniy Gelfand, MD
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 67 President St, Charleston, SC 29425
Phone: 843-792-0111    

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