Nicholas Adams Irwin, M.D.
Emergency Medicine Physician · Lexington, KY
Nicholas Adams Irwin, M.D. is an emergency medicine physician with a practice address in Lexington, Kentucky, and NPI 1952694671, issued on May 27, 2011. Check the license (Kentucky 47357, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Nicholas Adams Irwin
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 47357 KY
Self-reported in NPPES; status is on the state search - Practice location
- University OF Kentucky, Lexington, KY 40536
- Phone
- (859) 323-5083
- Enumerated
- May 27, 2011
- Record last updated
- Jul 3, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (859) 323-8056
- Medicare enrollment
- Enrolled (PECOS I20150908001702); accepts Medicare assignment
- Medical or professional school
- Medical College Of Georgia School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 903 in Kentucky → Look up another NPI →
Also registered at University OF Kentucky
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nicholas Adams Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 47357Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average emergency medicine physician in 2024
267 Medicare Part D claims for 169 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 58 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen39 claims
- Amlodipine Besylate20 claims
- Ondansetron Odt16 claims
- Oxycodone-Acetaminophen16 claims
- Albuterol Sulfate Hfa11 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): 92.9 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).
Bills Medicare through one group practice
- The Bortolazzo Group, LLCAustell, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Adams Irwin among 903 emergency medicine physician records in Kentucky
Nicholas Adams Irwin, M.D. is one of 903 emergency medicine physician records with a practice address in Kentucky. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 60% of them.
- NPI issued2011 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2011 · median 2011 among the 557 with a school on file
- Record last updated2014 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
211 emergency medicine physician records list a practice address in Lexington
They are 211 of the 14,031 NPPES records with a practice address in Lexington, and 903 emergency medicine physician records in Kentucky.
All 903 in Kentucky → Every provider in Lexington → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brian Adkins, M.D.Lexington, KY 405361598710717
- Rebecca Bowers, MDLexington, KY 405361043242746
- Craig CarterLexington, KY 405361275573818
- Amy Dahlgren, MDLexington, KY 405361942240486
- Christopher Doty, MDLexington, KY 405361639161433
- Charles Eckerline, MDLexington, KY 405361447289616
- Jessica Horne, M.D.Lexington, KY 405361598732174
- Roger Humphries, MDLexington, KY 405361649202268
Common questions
What is Nicholas Adams Irwin, M.D.'s NPI number?
Nicholas Adams Irwin, M.D.'s National Provider Identifier (NPI) is 1952694671, issued on May 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Adams Irwin, M.D. located?
The NPPES record lists a practice address at University OF Kentucky, Lexington, KY, 40536. Phone: (859) 323-5083. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Adams Irwin, M.D.'s license?
NPPES lists Kentucky license number 47357, 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 Nicholas Adams Irwin, M.D. prescribe under Medicare Part D?
In 2024, Nicholas Adams Irwin, M.D. had 267 Medicare Part D claims for 169 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Nicholas Adams Irwin, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.9 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.