Dr Garrett Greenan, MD - Medicare Internal Medicine in Davidson, NC

Dr Garrett Greenan, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Davidson, North Carolina. His current practice location is 705 Griffith St Ste 205, Davidson, North Carolina. You can reach out to his office (for appointments etc.) via phone at (704) 372-7974.

Dr Garrett Greenan is licensed to practice in North Carolina (license number 2023-01019) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1225579584.

Contact Information

Dr Garrett Greenan, MD
705 Griffith St Ste 205,
Davidson, NC 28036-9307
(704) 372-7974
(704) 372-8201

Map and Direction




Physician's Profile

Full NameDr Garrett Greenan
GenderMale
SpecialityInternal Medicine - Gastroenterology
Location705 Griffith St Ste 205, Davidson, North Carolina
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1225579584
  • Provider Enumeration Date: 03/20/2017
  • Last Update Date: 08/15/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7911325931
  • Enrollment ID: I20230901003342

Medical Identifiers

Medical identifiers for Dr Garrett Greenan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225579584NPI-NPPES
2021045755OtherMOPERMANENT MISSOURI STATE LICENSE
2023-01019OtherNCNCMB

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 2020011722 (Missouri)Secondary
207RG0100XInternal Medicine - Gastroenterology 2023-01019 (North Carolina)Primary

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 Garrett Greenan allows following entities to bill medicare on his behalf.
Entity NameCarolina Digestive Health Associates Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124052444
PECOS PAC ID: 1951209790
Enrollment ID: O20031230000650

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 Garrett Greenan 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 Garrett Greenan, MD
11301 Carmel Commons Blvd Ste 302,
Charlotte, NC 28226-5305

Ph: (704) 372-7974
Dr Garrett Greenan, MD
705 Griffith St Ste 205,
Davidson, NC 28036-9307

Ph: (704) 372-7974

Reviews and Comments


Internal Medicine Doctors in Davidson, NC

Dr. Daniel Lee Kirby, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 721 Jetton St Ste 115, Davidson, NC 28036
Phone: 704-255-6167    Fax: 704-255-6168
Dr. Herbert Neal Collins Jr., M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 921 Northeast Dr Unit 40, Davidson, NC 28036
Phone: 704-892-5226    
Yogesh K Patel, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 2101 Shiloh Church Rd, Suite 201 Ardsley Internal Medicine Ren Sq, Davidson, NC 28036
Phone: 704-403-8650    Fax: 704-403-8655
Patrick Allen Robinson, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 213 O Henry Ave, Davidson, NC 28036
Phone: 704-421-4453    

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.