Grace Koo, MD - Medicare Internal Medicine in Nashville, TN

Grace Koo, MD is a medicare enrolled "Allergy & Immunology" physician in Nashville, Tennessee. She went to University Of Maryland School Of Medicine and graduated in 2016 and has 8 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Vanderbilt University Medical Center and her current practice location is 3601 The Vanderbilt Clinic, Nashville, Tennessee. You can reach out to her office (for appointments etc.) via phone at (615) 936-2000.

Grace Koo is licensed to practice in Tennessee (license number 65411) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1255788659.

Contact Information

Grace Koo, MD
3601 The Vanderbilt Clinic,
Nashville, TN 37232-6013
(615) 936-2000
Not Available

Map and Direction




Physician's Profile

Full NameGrace Koo
GenderFemale
SpecialityInternal Medicine
Experience8 Years
Location3601 The Vanderbilt Clinic, Nashville, Tennessee
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Grace Koo attended and graduated from University Of Maryland School Of Medicine in 2016
  NPI Data:
  • NPI Number: 1255788659
  • Provider Enumeration Date: 05/16/2016
  • Last Update Date: 01/10/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 3375834989
  • Enrollment ID: I20220603001450

Medical Identifiers

Medical identifiers for Grace Koo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255788659NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036148471 (Illinois)Secondary
207RA0201XInternal Medicine - Allergy & Immunology 036148471 (Illinois)Secondary
208M00000XHospitalist 036148471 (Illinois)Secondary
207K00000XAllergy & Immunology 65411 (Tennessee)Primary
207R00000XInternal Medicine 65411 (Tennessee)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Vanderbilt University Medical CenterNashville, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Vanderbilt University Medical Center50920234162711

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. Grace Koo allows following entities to bill medicare on her behalf.
Entity NameVanderbilt Health And Williamson Medical Center Clinics And Services,
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225135551
PECOS PAC ID: 7719888262
Enrollment ID: O20040116000793
Entity NameVanderbilt University Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104202761
PECOS PAC ID: 5092023416
Enrollment ID: O20151006000369

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. Grace Koo 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
Grace Koo, MD
3841 Green Hills Village Dr,
Nashville, TN 37215-2691

Ph: () -
Grace Koo, MD
3601 The Vanderbilt Clinic,
Nashville, TN 37232-6013

Ph: (615) 936-2000

Reviews and Comments


Allergy & Immunology Doctors in Nashville, TN

Dr. Michael M Dao, M.D.
Allergy & Immunology
Medicare: Medicare Enrolled
Practice Location: 1161 Murfreesboro Pike Ste 500, Nashville, TN 37217
Phone: 615-415-5875    Fax: 615-777-3297
Keegan M Smith, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 222 22nd Ave N, Nashville, TN 37203
Phone: 629-255-2145    Fax: 629-255-4030
Lisa Lancaster, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 3601 Tvc, Nashville, TN 37232
Phone: 615-322-3000    
Dan S Sanders Iii, M.D.
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 300 20th Ave N, Suite 100, Nashville, TN 37203
Phone: 615-340-4731    Fax: 615-340-4729
William Bennett Ralph Jr., MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 330 22nd Ave N, Nashville, TN 37203
Phone: 615-329-9431    Fax: 615-329-9435
Lori Russell, FNP-BC
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 3601 The Vanderbilt Clinic, Nashville, TN 37232
Phone: 615-322-3000    
David Hagaman, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 3601 Tvc, Nashville, TN 37232
Phone: 615-322-3000    

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.