James Grant Barr, M.D., PH.D.
Nephrology Physician · Columbia, TN
James Grant Barr, M.D., PH.D. is a nephrology physician with a practice address in Columbia, Tennessee, and NPI 1831181957, issued on Aug 16, 2005. Check the license (Tennessee 17679, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Grant Barr
- Credential
- M.D., PH.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 17679 TN
Self-reported in NPPES; status is on the state search - Practice location
- 854 W James Campbell Blvd, Columbia, TN 38401
- Phone
- (931) 388-3209
- Enumerated
- Aug 16, 2005
- Record last updated
- May 24, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (931) 388-0105
- Medicaid ID
- 3067259 TN
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 266 in Tennessee → Look up another NPI →
Also registered at 854 W James Campbell Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Ball, M.D.Family Medicine Physician1154344836
- Laurie BatesFamily Nurse Practitioner1477067429
- Nina Boshers, LMFTMarriage & Family Therapist1114384930
- Cheryl Clayton, MDNephrology Physician1114979184
- Eunice Colmore, M.ED. LPCProfessional Counselor1902971948
- Thomas Farmer, M.D.Family Medicine Physician1114019833
Verify James Grant Barr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 17679Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $25.50
1 payment: food and beverage; the largest payer was Abbvie Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
James Grant Barr among 266 nephrology physician records in Tennessee
James Grant Barr, M.D., PH.D. is one of 266 nephrology physician records with a practice address in Tennessee. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 77% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2012 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Tennessee
There are 266 nephrology physician records in Tennessee.
All 266 in Tennessee → Every provider in Columbia → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Indu Bali, MDColumbia, TN 384011154425361
- Cesar Cardona, M.D.Columbia, TN 384011578728283
- Cheryl Clayton, MDColumbia, TN 384011114979184
- Marek Kacki, M.D.Columbia, TN 384011932191921
- Sue Lee, M.D.Columbia, TN 384011447382221
- Hany Rezk, M.D.Columbia, TN 384011033297429
- Michael Zolkiewicz, M.D.Columbia, TN 384011508858382
- Siddique Akbar, MDJackson, TN 383051295290328
Common questions
What is James Grant Barr, M.D., PH.D.'s NPI number?
James Grant Barr, M.D., PH.D.'s National Provider Identifier (NPI) is 1831181957, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Grant Barr, M.D., PH.D. located?
The NPPES record lists a practice address at 854 W James Campbell Blvd, Columbia, TN, 38401. Phone: (931) 388-3209. Providers update this record themselves, so call before visiting.
How can I verify James Grant Barr, M.D., PH.D.'s license?
NPPES lists Tennessee license number 17679, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.