Marcia Victoria Williams-Lyons, D.O.
Specialist · Knoxville, TN
Marcia Victoria Williams-Lyons, D.O. is a specialist with a practice address in Knoxville, Tennessee, and NPI 1043400526, issued on Jul 31, 2007. Check the license (Tennessee 2053, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marcia Victoria Williams-Lyons
- Credential
- D.O.
- Primary taxonomy
- Specialist 174400000X
- License number
- 2053 TN
Self-reported in NPPES; status is on the state search - Practice location
- 939 E Emerald Ave Ste 610, Knoxville, TN 37917
- Phone
- (865) 637-8635
- Enumerated
- Jul 31, 2007
- Record last updated
- Sep 1, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (865) 637-9882
- Medicare enrollment
- Enrolled (PECOS I20090713000410); accepts Medicare assignment
- Medical or professional school
- Rowan University School Of Osteopathic Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 672 in Tennessee → Look up another NPI →
Also registered at 939 E Emerald Ave Ste 610
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suresh Kumar, MDNephrology Physician1104016617
Verify Marcia Victoria Williams-Lyons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 2053Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average specialist in 2024
1,653 Medicare Part D claims for 311 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Sevelamer Carbonate108 claims
- Hydralazine Hcl82 claims
- Potassium Chloride82 claims
- Bumetanide81 claims
- Amlodipine Besylate73 claims
- Prednisone66 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): 63.2 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: $307.06
17 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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 one group practice
- Renal Medical Associates PCPowell, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcia Victoria Williams-Lyons among 672 specialist records in Tennessee
Marcia Victoria Williams-Lyons, D.O. is one of 672 specialist records with a practice address in Tennessee. 31% 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 56% of them.
- NPI issued2007 · 56% of these records are older, 30% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 20% of these records are
- Graduated2004 · median 1989 among the 132 with a school on file
- Record last updated2009 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Tennessee
There are 672 specialist records in Tennessee.
All 672 in Tennessee → Every provider in Knoxville → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- William Black, MDKnoxville, TN 379171811999774
- Mary BlytheKnoxville, TN 379171699237271
- Robin Ferguson, IBCLCKnoxville, TN 379171265649016
- Barry Frame, M.D.Knoxville, TN 379171134214927
- Jay Hammett, M.D.Knoxville, TN 379171871562843
- Sarah KarnesKnoxville, TN 379171225508187
- Angela MillerKnoxville, TN 379171578036323
- Kristy Newton, M.D.Knoxville, TN 379171285620336
Common questions
What is Marcia Victoria Williams-Lyons, D.O.'s NPI number?
Marcia Victoria Williams-Lyons, D.O.'s National Provider Identifier (NPI) is 1043400526, issued on Jul 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marcia Victoria Williams-Lyons, D.O. located?
The NPPES record lists a practice address at 939 E Emerald Ave Ste 610, Knoxville, TN, 37917. Phone: (865) 637-8635. Providers update this record themselves, so call before visiting.
How can I verify Marcia Victoria Williams-Lyons, D.O.'s license?
NPPES lists Tennessee license number 2053, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Marcia Victoria Williams-Lyons, D.O. prescribe under Medicare Part D?
In 2024, Marcia Victoria Williams-Lyons, D.O. had 1,653 Medicare Part D claims for 311 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Marcia Victoria Williams-Lyons, D.O.'s MIPS final score?
The 2023 MIPS final score is 63.2 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.