James Thomas Mazzo
Internal Medicine Physician · Conway, AR
James Thomas Mazzo is an internal medicine physician with a practice address in Conway, Arkansas, and NPI 1518540335, issued on Apr 29, 2021. Check the license (Arkansas E-19003, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Thomas Mazzo
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- E-19003 AR
Self-reported in NPPES; status is on the state search - Practice location
- 1555 Exchange Ave, Conway, AR 72032
- Phone
- (501) 851-7402
- Enumerated
- Apr 29, 2021
- Record last updated
- Apr 21, 2025
- Fax
- (501) 851-4753
- Medicare enrollment
- Enrolled (PECOS I20250513003776); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 768 in Arkansas → Look up another NPI →
Also registered at 1555 Exchange Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thomas Alfano, M.D.Anesthesiology Physician1629052931
- Whitney Birch, CRNACertified Registered Nurse Anesthetist1407419690
- Matthew BristerFamily Nurse Practitioner1154816098
- Muhammad Goraya, MDInternal Medicine Physician1417433822
- Jack Griebel, M.D.Pulmonary Disease Physician1598793754
- Lance Harris, PA-CPhysician Assistant1083163638
Verify James Thomas Mazzo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-19003Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
68 Medicare Part D claims for 23 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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
- Arkansas Health GroupConway, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Thomas Mazzo among 768 internal medicine physician records in Arkansas
James Thomas Mazzo is one of 768 internal medicine physician records with a practice address in Arkansas. 84% 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 84% of them.
- NPI issued2021 · 84% of these records are older, 9% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2021 · median 2010 among the 519 with a school on file
- Record last updated2025 · 50% 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 Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Conway
They are 23 of the 2,848 NPPES records with a practice address in Conway, and 768 internal medicine physician records in Arkansas.
All 768 in Arkansas → Every provider in Conway → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mallory Bagwell, DOConway, AR 720321487399309
- Muhammad Goraya, MDConway, AR 720321417433822
- Sheza Khawaja, MDConway, AR 720321720508195
- Ayna Serwat, MDConway, AR 720321578204723
- Arthur Slaton, M.D.Conway, AR 720321184156226
- James Smith, MDConway, AR 720321053377226
- John Watson, M.D.Conway, AR 720321326341652
- Keith Coward, MDClinton, AR 720311710982871
Common questions
What is James Thomas Mazzo's NPI number?
James Thomas Mazzo's National Provider Identifier (NPI) is 1518540335, issued on Apr 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is James Thomas Mazzo located?
The NPPES record lists a practice address at 1555 Exchange Ave, Conway, AR, 72032. Phone: (501) 851-7402. Providers update this record themselves, so call before visiting.
How can I verify James Thomas Mazzo's license?
NPPES lists Arkansas license number E-19003, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Thomas Mazzo prescribe under Medicare Part D?
In 2024, James Thomas Mazzo had 68 Medicare Part D claims for 23 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.