Charles Eaton Stewart, M.D. PH.D.
Radiation Oncology Physician · Lewiston, ME
Charles Eaton Stewart, M.D. PH.D. is a radiation oncology physician with a practice address in Lewiston, Maine, and NPI 1043243884, issued on Jul 7, 2006. Check the license (Maine MD29918, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles Eaton Stewart
- Credential
- M.D. PH.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- MD29918 ME
24962 OK
Self-reported in NPPES; status is on the state search - Practice location
- 300 Main St, Lewiston, ME 04240
- Phone
- (207) 795-2240
- Enumerated
- Jul 7, 2006
- Record last updated
- Jun 24, 2026
- Medicaid ID
- 200202310A OK
- Medicare enrollment
- Enrolled (PECOS I20061007000004); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2001
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 27 in Maine → Look up another NPI →
Also registered at 300 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Abbott, D.O.Hospitalist Physician1982043329
- Maya Ahluwalia Hackett, DPTPhysical Therapist1700492865
- Donald Albee, CRNACertified Registered Nurse Anesthetist1437168903
- Joseph Anderson, DOPediatrics Physician1962853697
- Nicole Anderson, SLPSpeech-Language Pathologist1548644636
- Michelle AndrewsPhysical Therapist1326423237
Verify Charles Eaton Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD29918Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% more Medicare Part D claims than the average radiation oncology physician in 2024
246 Medicare Part D claims for 127 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Pentoxifylline76 claims
- Gabapentin25 claims
- Pantoprazole Sodium25 claims
- Dexamethasone16 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): 93.2 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).
Industry payments in 2024: $49.53
3 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 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
- Warren Clinic IncTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Eaton Stewart among 27 radiation oncology physician records in Maine
Charles Eaton Stewart, M.D. PH.D. is one of 27 radiation oncology physician records with a practice address in Maine. 74% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2001 · median 2012 among the 17 with a school on file
- Record last updated2026 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Maine
There are 27 radiation oncology physician records in Maine.
All 27 in Maine → Every provider in Lewiston → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Michael Brown, M.D.Lewiston, ME 042401235101825
- John Drogos, MDAugusta, ME 043301639699929
- Glenn Healey, MDAugusta, ME 043301770531386
- Stuart Gilbert, M.D.Falmouth, ME 041051144238726
- Whitney Beeler, M.D.Portland, ME 041021073908505
- Ian Bristol, M.D.Portland, ME 041021235357294
- Matthew Cheney, M.D., PH.D.Portland, ME 041021326363714
- Celine Godin, M.D.Portland, ME 041021598773392
Common questions
What is Charles Eaton Stewart, M.D. PH.D.'s NPI number?
Charles Eaton Stewart, M.D. PH.D.'s National Provider Identifier (NPI) is 1043243884, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles Eaton Stewart, M.D. PH.D. located?
The NPPES record lists a practice address at 300 Main St, Lewiston, ME, 04240. Phone: (207) 795-2240. Providers update this record themselves, so call before visiting.
How can I verify Charles Eaton Stewart, M.D. PH.D.'s license?
NPPES lists Maine license number MD29918, 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.
How much does Charles Eaton Stewart, M.D. PH.D. prescribe under Medicare Part D?
In 2024, Charles Eaton Stewart, M.D. PH.D. had 246 Medicare Part D claims for 127 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Charles Eaton Stewart, M.D. PH.D.'s MIPS final score?
The 2023 MIPS final score is 93.2 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.