Douglas G. Irwin, M.D.
Family Medicine Physician · Manchester, KY
Douglas G. Irwin, M.D. is a family medicine physician with a practice address in Manchester, Kentucky, and NPI 1538115621, issued on May 26, 2006. Check the license (Kentucky 38637, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Douglas G. Irwin
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 38637 KY
Self-reported in NPPES; status is on the state search - Practice location
- 94 Marie Langdon Dr, Manchester, KY 40962
- Phone
- (606) 599-9955
- Enumerated
- May 26, 2006
- Record last updated
- May 27, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (606) 599-9966
- Medicaid ID
- 64081466 KY
- Medicare enrollment
- Enrolled (PECOS I20040716000482); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 1996
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,968 in Kentucky → Look up another NPI →
Also registered at 94 Marie Langdon Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Judy Hacker, APRNFamily Nurse Practitioner1770962961
- Kishore Jadhav, MDInternal Medicine Physician1689687691
Verify Douglas G. Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 38637Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
456 Medicare Part D claims for 126 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril22 claims
- Albuterol Sulfate Hfa15 claims
- Amlodipine Besylate15 claims
- Quetiapine Fumarate15 claims
- Bupropion Hcl Sr13 claims
- Rosuvastatin Calcium13 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): 69.9 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 2 group practices
- 24 ON Physicians PCDanville, KY
- Advanced Family Medical Clinic Mount VernonSomerset, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas G. Irwin among 1,968 family medicine physician records in Kentucky
Douglas G. Irwin, M.D. is one of 1,968 family medicine physician records with a practice address in Kentucky. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 50% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1996 · median 2006 among the 1,277 with a school on file
- Record last updated2015 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family medicine physician records list a practice address in Manchester
They are 4 of the 201 NPPES records with a practice address in Manchester, and 1,968 family medicine physician records in Kentucky.
All 1,968 in Kentucky → Every provider in Manchester → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Angela Rice, DOManchester, KY 409621134231822
- Emaleigh SamsManchester, KY 409621124889696
- Sam Vorkpor, MDManchester, KY 409621700076874
- Mackenzie Carroll, DOMiddlesboro, KY 409651982333704
- Maria Hortillosa, MDMiddlesboro, KY 409651629004015
- Jacob Jones, MDMiddlesboro, KY 409651467149930
- Elizabeth Lucas, D.O.Middlesboro, KY 409651346524154
- Michael Lynch, DOMiddlesboro, KY 409651811428683
Common questions
What is Douglas G. Irwin, M.D.'s NPI number?
Douglas G. Irwin, M.D.'s National Provider Identifier (NPI) is 1538115621, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas G. Irwin, M.D. located?
The NPPES record lists a practice address at 94 Marie Langdon Dr, Manchester, KY, 40962. Phone: (606) 599-9955. Providers update this record themselves, so call before visiting.
How can I verify Douglas G. Irwin, M.D.'s license?
NPPES lists Kentucky license number 38637, 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 Douglas G. Irwin, M.D. prescribe under Medicare Part D?
In 2024, Douglas G. Irwin, M.D. had 456 Medicare Part D claims for 126 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Douglas G. Irwin, M.D.'s MIPS final score?
The 2023 MIPS final score is 69.9 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.