John Hawkins Irwin, D.O.
Internal Medicine Physician · Waterville, ME
John Hawkins Irwin, D.O. is an internal medicine physician with a practice address in Waterville, Maine, and NPI 1528092491, issued on Jul 10, 2006. Check the license (Maine 1238, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- John Hawkins Irwin
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1238 ME
Self-reported in NPPES; status is on the state search - Practice location
- 40 Airport RD, Waterville, ME 04901
- Phone
- (207) 680-2070
- Enumerated
- Jul 10, 2006
- Record last updated
- Feb 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (207) 680-2074
- Medicaid ID
- 197070099 ME
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 597 in Maine → Look up another NPI →
Also registered at 40 Airport RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Hawkins Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 1238Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 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).
John Hawkins Irwin among 597 internal medicine physician records in Maine
John Hawkins Irwin, D.O. is one of 597 internal medicine physician records with a practice address in Maine. 77% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 44% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2014 · 60% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Maine
There are 597 internal medicine physician records in Maine.
All 597 in Maine → Every provider in Waterville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bert Beverly, M.D.Waterville, ME 049011174689343
- Ramon Cheleuitte, MDWaterville, ME 049011114059672
- Sayeedul Hasan, M.B.B.SWaterville, ME 049011609252394
- Uzma Naaz, MDWaterville, ME 049011811187487
- David Preston, M.D.Winslow, ME 049011871559203
- Stephen Raph, MDWaterville, ME 049011033175971
- Nadeem Siddiqui, MDWaterville, ME 049011104094879
- Todd Stapley, D.O.Waterville, ME 049011306957428
Common questions
What is John Hawkins Irwin, D.O.'s NPI number?
John Hawkins Irwin, D.O.'s National Provider Identifier (NPI) is 1528092491, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Hawkins Irwin, D.O. located?
The NPPES record lists a practice address at 40 Airport RD, Waterville, ME, 04901. Phone: (207) 680-2070. Providers update this record themselves, so call before visiting.
How can I verify John Hawkins Irwin, D.O.'s license?
NPPES lists Maine license number 1238, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is John Hawkins Irwin, D.O.'s MIPS final score?
The 2023 MIPS final score is 94.6 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.