John Joseph Stewart, M.D.
Internal Medicine Physician · Lexington, KY
John Joseph Stewart, M.D. is an internal medicine physician with a practice address in Lexington, Kentucky, and NPI 1124288865, issued on Jun 16, 2008. Check the license (Kentucky 42211, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- John Joseph Stewart
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 42211 KY
Self-reported in NPPES; status is on the state search - Practice location
- UK Internal Medicine Group, Lexington, KY 40536
- Phone
- (859) 323-0303
- Enumerated
- Jun 16, 2008
- Record last updated
- Jul 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090603000120); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Verify John Joseph Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 42211Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,457 Medicare Part D claims for 112 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium101 claims
- Amlodipine Besylate81 claims
- Gabapentin67 claims
- Lisinopril46 claims
- Ozempic43 claims
- Albuterol Sulfate Hfa39 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Kentucky Medical Services Foundation, IncLexington, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Joseph Stewart among 1,526 internal medicine physician records in Kentucky
John Joseph Stewart, M.D. is one of 1,526 internal medicine physician records with a practice address in Kentucky. 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2006 · median 2006 among the 1,025 with a school on file
- Record last updated2012 · 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 Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
259 internal medicine physician records list a practice address in Lexington
They are 259 of the 14,031 NPPES records with a practice address in Lexington, and 1,526 internal medicine physician records in Kentucky.
All 1,526 in Kentucky → Every provider in Lexington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Angela Dearinger, MDLexington, KY 405361245244854
- Heidi EhrhardtLexington, KY 405361538126354
- Christopher Feddock, MDLexington, KY 405361831119510
- Jacqueline Fister, MDLexington, KY 405361356380026
- Wendy Garabedian, M.D.Lexington, KY 405361457337347
- Andrew Hoellein, MDLexington, KY 405361891719795
- David Mannino, MDLexington, KY 405361982628889
- Mary Meek, MDLexington, KY 405361629092366
Common questions
What is John Joseph Stewart, M.D.'s NPI number?
John Joseph Stewart, M.D.'s National Provider Identifier (NPI) is 1124288865, issued on Jun 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Joseph Stewart, M.D. located?
The NPPES record lists a practice address at UK Internal Medicine Group, Lexington, KY, 40536. Phone: (859) 323-0303. Providers update this record themselves, so call before visiting.
How can I verify John Joseph Stewart, M.D.'s license?
NPPES lists Kentucky license number 42211, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Joseph Stewart, M.D. prescribe under Medicare Part D?
In 2024, John Joseph Stewart, M.D. had 1,457 Medicare Part D claims for 112 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John Joseph Stewart, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.