Gregory D Olds, MD - Medicare Gastroenterology in Chattanooga, TN

Gregory D Olds, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Chattanooga, Tennessee. He went to University Of Michigan Medical School and graduated in 1996 and has 28 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Galen Medical Group, Pc and his current practice location is 2200 E 3rd St Ste 200, Chattanooga, Tennessee. You can reach out to his office (for appointments etc.) via phone at (423) 643-2500.

Gregory D Olds is licensed to practice in Tennessee (license number 49152) 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 1972671428.

Contact Information

Gregory D Olds, MD
2200 E 3rd St Ste 200,
Chattanooga, TN 37404-2745
(423) 643-2500
(423) 305-7822

Map and Direction




Physician's Profile

Full NameGregory D Olds
GenderMale
SpecialityGastroenterology
Experience28 Years
Location2200 E 3rd St Ste 200, Chattanooga, Tennessee
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:
  • Gregory D Olds attended and graduated from University Of Michigan Medical School in 1996
  NPI Data:
  • NPI Number: 1972671428
  • Provider Enumeration Date: 12/01/2006
  • Last Update Date: 04/05/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8123093556
  • Enrollment ID: I20121105000027

Medical Identifiers

Medical identifiers for Gregory D Olds such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972671428NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 4301083262 (Michigan)Secondary
207RG0100XInternal Medicine - Gastroenterology 49152 (Tennessee)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Memorial Healthcare System, IncChattanooga, TNHospital
Parkridge Medical CenterChattanooga, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Galen Medical Group, Pc2668377391126

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. Gregory D Olds allows following entities to bill medicare on his behalf.
Entity NameGalen Medical Group, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346250057
PECOS PAC ID: 2668377391
Enrollment ID: O20031204001027

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. Gregory D Olds 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
Gregory D Olds, MD
4976 Alpha Ln,
Hixson, TN 37343-5470

Ph: (423) 497-5355
Gregory D Olds, MD
2200 E 3rd St Ste 200,
Chattanooga, TN 37404-2745

Ph: (423) 643-2500

Reviews and Comments


Internal Medicine Doctors in Chattanooga, TN

Bradley Rayford Keel, DO
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1067 Riverfront Pkwy Ste 201, Chattanooga, TN 37402
Phone: 423-888-5930    Fax: 423-634-0103
Dr. Pamela Rani Sud, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 725 Glenwood Drive, Suite E-500, Chattanooga, TN 37404
Phone: 423-495-2635    Fax: 423-495-2638
David Shved, D.O.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 975 E 3rd St, Chattanooga, TN 37403
Phone: 423-778-5179    Fax: 423-778-2108
Megan J Coylewright, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 975 E 3rd St, Chattanooga, TN 37403
Phone: 423-778-8258    
Dr. Charles Robert Bosshardt, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2515 Desales Ave Ste 206, Chattanooga, TN 37404
Phone: 423-698-8101    Fax: 423-698-3450
Dr. Elise Helene Marshall, DO
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 605 Glenwood Dr Ste 300, Chattanooga, TN 37404
Phone: 423-495-2690    Fax: 423-495-2698
Dr. Joshua Warner Hornsby, M.D.
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 979 E 3rd St Ste A-440, Chattanooga, TN 37403
Phone: 423-778-2867    Fax: 423-778-2866

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.