William Chadwick Armstrong, MD
Cardiovascular Disease Physician · Chattanooga, TN
William Chadwick Armstrong, MD is a cardiovascular disease physician with a practice address in Chattanooga, Tennessee, and NPI 1902225014, issued on Apr 16, 2014. Check the license (Tennessee 53949, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Chadwick Armstrong
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 53949 TN
Self-reported in NPPES; status is on the state search - Practice location
- 2501 Citico Ave, Chattanooga, TN 37404
- Phone
- (423) 697-2000
- Enumerated
- Apr 16, 2014
- Record last updated
- May 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (423) 697-2320
- Medicare enrollment
- Enrolled (PECOS I20200612000070); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 2014
- Entity
- Type 1 · individual
Also registered at 2501 Citico Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gillian Akins, NPNurse Practitioner1427506922
- Allen Atchley, M.D.Cardiovascular Disease Physician1134320476
- Deborah Ballard, NPFamily Nurse Practitioner1588879068
- Genna Barnett, APNFamily Nurse Practitioner1063736551
- Joyce Beardsley, NPNurse Practitioner1033387535
- Chelsey Benson, DNP, AG-ACNPAcute Care Nurse Practitioner1003531583
Verify William Chadwick Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 53949Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average cardiovascular disease physician in 2024
4,814 Medicare Part D claims for 683 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium382 claims
- Amlodipine Besylate371 claims
- Eliquis371 claims
- Carvedilol332 claims
- Metoprolol Tartrate296 claims
- Metoprolol Succinate269 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): 94.7 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: $27.35
1 payment: food and beverage; the largest payer was Alnylam Pharmaceuticals Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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
- Memorial Health Care System Inc.Chattanooga, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cardiovascular Disease Physician providers in Tennessee
There are 464 cardiovascular disease physician records in Tennessee.
Other cardiovascular disease physician records in Tennessee
- Bassem Abazid, M.D.Lenoir City, TN1689835944
- Ahmed Abdallah, M.DLenoir City, TN1124525597
- Javed Abdullah, MDGermantown, TN1184801367
- Kazeen Abdullah, M.D.Smyrna, TN1790084929
- John Acker, M.D.Knoxville, TN1497756241
- Aaron Aday, M.D.Nashville, TN1336469220
- Adedayo Adeboye, MDMemphis, TN1699948281
- Adeyinka Agbetoyin, MDJackson, TN1922047422
- Niti Aggarwal, MDFranklin, TN1598962474
- Vineet Agrawal, MD, PHDNashville, TN1750624292
Common questions
What is William Chadwick Armstrong, MD's NPI number?
William Chadwick Armstrong, MD's National Provider Identifier (NPI) is 1902225014, issued on Apr 16, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Chadwick Armstrong, MD located?
The NPPES record lists a practice address at 2501 Citico Ave, Chattanooga, TN, 37404. Phone: (423) 697-2000. Providers update this record themselves, so call before visiting.
How can I verify William Chadwick Armstrong, MD's license?
NPPES lists Tennessee license number 53949, 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 William Chadwick Armstrong, MD prescribe under Medicare Part D?
In 2024, William Chadwick Armstrong, MD had 4,814 Medicare Part D claims for 683 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is William Chadwick Armstrong, MD's MIPS final score?
The 2023 MIPS final score is 94.7 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.