Robert Austin O'Connor, MD
Internal Medicine Physician · Knoxville, TN
Robert Austin O'Connor, MD is an internal medicine physician with a practice address in Knoxville, Tennessee, and NPI 1295313914, issued on Apr 1, 2021. Check the license on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert Austin O'Connor
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2025-01441 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1924 Alcoa Hwy # U-114, Knoxville, TN 37920
- Phone
- (865) 305-6501
- Enumerated
- Apr 1, 2021
- Record last updated
- Mar 24, 2026
- Fax
- (865) 305-8199
- Medicare enrollment
- Enrolled (PECOS I20251022003167); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 1924 Alcoa Hwy # U-114
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Marshall Arons, DOStudent in an Organized Health Care Education/Training Program1962340414
- Alexandria Atkins, MDStudent in an Organized Health Care Education/Training Program1902486806
- Reza Ayoubi, MDStudent in an Organized Health Care Education/Training Program1417707795
- Coleman Churitch, MDStudent in an Organized Health Care Education/Training Program1942959077
Verify Robert Austin O'Connor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
84 Medicare Part D claims for 16 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- The Charlotte-Mecklenburg Hospital AuthorityCharlotte, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Austin O'Connor among 2,596 internal medicine physician records in Tennessee
Robert Austin O'Connor, MD is one of 2,596 internal medicine physician records with a practice address in Tennessee. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 93% of them.
- NPI issued2021 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2021 · median 2003 among the 1,705 with a school on file
- Record last updated2026 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
237 internal medicine physician records list a practice address in Knoxville
They are 237 of the 14,339 NPPES records with a practice address in Knoxville, and 2,596 internal medicine physician records in Tennessee.
All 2,596 in Tennessee → Every provider in Knoxville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Monte Biggs, M.D.Knoxville, TN 379201073611943
- John Cooper, M.D.Knoxville, TN 379201063510931
- Courtney George, MDKnoxville, TN 379201730287764
- Douglas Hembree, M.D.Knoxville, TN 379201427156397
- Rocio Huet, M.D.Knoxville, TN 379201073555041
- Sara Juarez, M.D.Knoxville, TN 379201932119351
- Hussein Kammona, MDKnoxville, TN 379201114023447
- Jeffry King, M.D.Knoxville, TN 379201700865540
Common questions
What is Robert Austin O'Connor, MD's NPI number?
Robert Austin O'Connor, MD's National Provider Identifier (NPI) is 1295313914, issued on Apr 1, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Robert Austin O'Connor, MD located?
The NPPES record lists a practice address at 1924 Alcoa Hwy # U-114, Knoxville, TN, 37920. Phone: (865) 305-6501. Providers update this record themselves, so call before visiting.
How can I verify Robert Austin O'Connor, MD's license?
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.
How much does Robert Austin O'Connor, MD prescribe under Medicare Part D?
In 2024, Robert Austin O'Connor, MD had 84 Medicare Part D claims for 16 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.