John Nicholas Alcorn, MD
Internal Medicine Physician · Lexington, KY
John Nicholas Alcorn, MD is an internal medicine physician with a practice address in Lexington, Kentucky, and NPI 1912536004, issued on Apr 2, 2020. Check the license (Kentucky 58249, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- John Nicholas Alcorn
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 58249 KY
Self-reported in NPPES; status is on the state search - Practice location
- 900 S Limestone Ctw 304, Lexington, KY 40536
- Phone
- (859) 323-9918
- Enumerated
- Apr 2, 2020
- Record last updated
- Aug 21, 2023
- Fax
- (859) 323-1197
- Medicare enrollment
- Enrolled (PECOS I20230712000752); accepts Medicare assignment
- Medical or professional school
- University Of Kentucky College Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Also registered at 900 S Limestone Ctw 304
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah AbshearStudent in an Organized Health Care Education/Training Program1427852748
- Zaynah AjmalStudent in an Organized Health Care Education/Training Program1710781398
- Alexa Alfred, MDStudent in an Organized Health Care Education/Training Program1942904438
- Eugene Matthew AlmazanStudent in an Organized Health Care Education/Training Program1194303917
- Cole Alsip, MDStudent in an Organized Health Care Education/Training Program1316797798
- Mais Alwan, DOInternal Medicine Physician1306586623
Verify John Nicholas Alcorn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 58249Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average internal medicine physician in 2024
954 Medicare Part D claims for 153 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Trazodone Hcl43 claims
- Rosuvastatin Calcium30 claims
- Levothyroxine Sodium24 claims
- Tizanidine Hcl24 claims
- Losartan Potassium22 claims
- Amoxicillin-Clavulanate Potass21 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): 95.5 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: $887.29
53 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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 one group practice
- Baptist Health Medical Group IncLexington, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Nicholas Alcorn among 1,526 internal medicine physician records in Kentucky
John Nicholas Alcorn, MD 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2020 · median 2006 among the 1,025 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 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 Nicholas Alcorn, MD's NPI number?
John Nicholas Alcorn, MD's National Provider Identifier (NPI) is 1912536004, issued on Apr 2, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John Nicholas Alcorn, MD located?
The NPPES record lists a practice address at 900 S Limestone Ctw 304, Lexington, KY, 40536. Phone: (859) 323-9918. Providers update this record themselves, so call before visiting.
How can I verify John Nicholas Alcorn, MD's license?
NPPES lists Kentucky license number 58249, 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 Nicholas Alcorn, MD prescribe under Medicare Part D?
In 2024, John Nicholas Alcorn, MD had 954 Medicare Part D claims for 153 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John Nicholas Alcorn, MD's MIPS final score?
The 2023 MIPS final score is 95.5 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.