Mary E. Nelson, MD
Internal Medicine Physician · Knoxville, TN
Mary E. Nelson, MD is an internal medicine physician with a practice address in Knoxville, Tennessee, and NPI 1518165745, issued on Jul 10, 2007. Check the license (Tennessee 42558, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mary E. Nelson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 42558 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1819 Clinch Ave Ste 114, Knoxville, TN 37916
- Phone
- (865) 524-1631
- Enumerated
- Jul 10, 2007
- Record last updated
- Nov 21, 2023
- Medicaid ID
- 3000477 TN
- Medicare enrollment
- Enrolled (PECOS I20070924000365); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 in Tennessee → Look up another NPI →
Also registered at 1819 Clinch Ave Ste 114
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bradley Davis, M.D.Internal Medicine Physician1326203548
- Matthew Edwards, D.O.Internal Medicine Physician1588979470
- Sarah Harvey, FNPFamily Nurse Practitioner1912321589
- Lauren Hunley, PAMedical Physician Assistant1700369162
- Megan Mase, D.O.Family Medicine Physician1912387267
- Megan Micaletti, FNPFamily Nurse Practitioner1235782558
Verify Mary E. Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 42558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,501 Medicare Part D claims for 192 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin80 claims
- Rosuvastatin Calcium68 claims
- Atorvastatin Calcium61 claims
- Amlodipine Besylate59 claims
- Lisinopril43 claims
- Losartan Potassium43 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.
The MIPS final score for 2023 (Medicare payment program): 95.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $910.69
50 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through 2 group practices
- Champion Physical Therapy LLC HallsKnoxville, TN
- Summit Medical Group, PLLCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary E. Nelson among 2,596 internal medicine physician records in Tennessee
Mary E. Nelson, 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 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 37% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2003 among the 1,705 with a school on file
- Record last updated2023 · 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
- Ashok Bhandari, MDKnoxville, TN 379161083671648
- John Cooper, MDKnoxville, TN 379161336183763
- Jeffrey Douglas, M.D.Knoxville, TN 379161023055290
- James Ferguson, MDKnoxville, TN 379161346284767
- Randolph Lowry, M.D.Knoxville, TN 379161649371089
- Gerald Mancebo, MDKnoxville, TN 379161700820131
- Anthony Morton, MDKnoxville, TN 379161578504478
- Michael Passarello, MDKnoxville, TN 379161487695383
Common questions
What is Mary E. Nelson, MD's NPI number?
Mary E. Nelson, MD's National Provider Identifier (NPI) is 1518165745, issued on Jul 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary E. Nelson, MD located?
The NPPES record lists a practice address at 1819 Clinch Ave Ste 114, Knoxville, TN, 37916. Phone: (865) 524-1631. Providers update this record themselves, so call before visiting.
How can I verify Mary E. Nelson, MD's license?
NPPES lists Tennessee license number 42558, 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.
How much does Mary E. Nelson, MD prescribe under Medicare Part D?
In 2024, Mary E. Nelson, MD had 1,501 Medicare Part D claims for 192 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Mary E. Nelson, MD's MIPS final score?
The 2023 MIPS final score is 95.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.