John M Guenst, MD - Medicare Internal Medicine in Nashville, TN

John M Guenst, MD is a medicare enrolled "Internal Medicine" physician in Nashville, Tennessee. He went to Vanderbilt University School Of Medicine and graduated in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Advanced Diagnostic Imaging Pc and his current practice location is 4230 Harding Rd, Suite 400, Nashville, Tennessee. You can reach out to his office (for appointments etc.) via phone at (615) 297-2700.

John M Guenst is licensed to practice in Tennessee (license number 23754) 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 1063452902.

Contact Information

John M Guenst, MD
4230 Harding Rd, Suite 400,
Nashville, TN 37205-2013
(615) 297-2700
(615) 386-2399

Map and Direction




Physician's Profile

Full NameJohn M Guenst
GenderMale
SpecialityInternal Medicine
Experience35 Years
Location4230 Harding Rd, Nashville, 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:
  • John M Guenst attended and graduated from Vanderbilt University School Of Medicine in 1989
  NPI Data:
  • NPI Number: 1063452902
  • Provider Enumeration Date: 06/08/2006
  • Last Update Date: 05/07/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 0648353250
  • Enrollment ID: I20100511000615

Medical Identifiers

Medical identifiers for John M Guenst such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063452902NPI-NPPES
1508060MedicaidTN
5064018OtherTNAETNA
10075085OtherTNAMERIGROUP TENNCARE
110217705OtherTNMEDICARE RR
12079591OtherTNMULTIPLAN/PHCS
5140596OtherTNCIGNA
3164316OtherTNBLUE CROSS OF TN
440460OtherTNUNITED HEALTH CARE
64914971MedicaidKY
1100315482OtherTNUSA PPO/GEHA
1029992OtherTNCOVENTRY /FIRST HEALTH
5140596OtherTNCIGNA PPO/POS
633816OtherTNUSA-MCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 23754 (Tennessee)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Saint Thomas West HospitalNashville, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Advanced Diagnostic Imaging Pc7315848140545

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 M Guenst allows following entities to bill medicare on his behalf.
Entity NameAdvanced Diagnostic Imaging Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093741464
PECOS PAC ID: 7315848140
Enrollment ID: O20040115000677

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 M Guenst 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 M Guenst, MD
104 Woodmont Blvd, Suite Ll50,
Nashville, TN 37205-2245

Ph: (615) 386-2300
John M Guenst, MD
4230 Harding Rd, Suite 400,
Nashville, TN 37205-2013

Ph: (615) 297-2700

Reviews and Comments


Internal Medicine Doctors in Nashville, TN

Megan Desai, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 4220 Harding Pike, Nashville, TN 37205
Phone: 615-222-6726    Fax: 615-222-3702
Harrison Klause,
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John N Bowers, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 4230 Harding Pike Ste 500, Nashville, TN 37205
Phone: 629-255-2493    Fax: 629-255-4266
Spurthi N Bhatt, MD MPH
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Medicare: Medicare Enrolled
Practice Location: 3601 The Vanderbilt Clinic, Nashville, TN 37232
Phone: 615-322-3000    
Mr. Robert M Johnson, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 2410 Patterson St, Suite 106, Nashville, TN 37203
Phone: 615-340-4611    Fax: 615-340-4658
Mr. John E Anderson, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2400 Patterson St, Suite 400, Nashville, TN 37203
Phone: 615-342-5900    Fax: 615-342-5912
Aladraine Sands, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 275 Cumberland Bnd, Nashville, TN 37228
Phone: --    

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.