Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CHARLES EATON STEWART M.D. PH.D.
NPI 1043243884
Radiology - Radiation Oncology in Lewiston, ME

Q: What is Charles Stewart's NPI number?

The NPI number for Charles Stewart is 1043243884. It was assigned to this individual provider in the NPPES registry on July 7, 2006.

Q: What is Charles Stewart's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Charles Stewart was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 07, 2006PECOS EnrolledAccepts Medicare Assignment

93.22/100

CMS Quality Rating

300 MAIN ST, LEWISTON, ME 04240(207) 795-2240 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Charles Eaton Stewart M.d. Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHARLES EATON STEWART M.D. PH.D. (NPI 1043243884) is an individual radiation oncology provider in Lewiston, Maine, licensed in Maine (MD29918) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Saint Francis Hospital, Inc, and maintains a secondary practice location in Tulsa.

NPPES Registry Identity

NPI1043243884

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. CHARLES EATON STEWARTCredential: M.D. PH.D.

Location Address300 MAIN STLewiston, ME 04240-7041

Mailing Address300 Main StLewiston, ME 04240-7041 · (207) 795-2240

Phone(207) 795-2240

Sole ProprietorNo

Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 2001

Enumeration DateJuly 7, 2006

Last NPPES UpdateJune 24, 2026

NPPES CertifiedJune 24, 2026

✔ NPI 1043243884 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

Licenses✔ Licensed in ME · MD29918✔ Licensed in OK · 24962

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

300 MAIN ST, Lewiston, ME 04240

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Secondary Practice Location 1

Location 111212 E 48th StTulsa, OK 74146-5824 · Phone (918) 497-3715 · Fax (918) 884-7282

Other Identifiers 1

Medicaid200202310AOK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Mending Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Charles Eaton Stewart M.d. Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8628071040

PECOS Enrollment IDI20061007000004

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 20

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

855 services96 patients

Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy G6002

Stereoscopic x-ray guidance is a technique used in radiation therapy. It involves taking multiple X-ray images from different angles to create a 3D picture of the area to be treated. This helps accurately pinpoint the exact location for radiation delivery, ensuring the therapy is as effective as possible.

529 services60 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

512 services111 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

493 services161 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

280 services121 patients

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

116 services113 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

109 services109 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.

82 services69 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

71 services52 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

70 services56 patients

High precision radiation therapy planning 77301

High precision radiation therapy planning involves detailed mapping of your body to target cancer cells accurately. Advanced imaging techniques help identify the exact location of the tumor, minimizing harm to healthy tissues. This personalized approach enhances effectiveness and reduces side effects.

68 services63 patients

Special radiation treatment 77470

Special radiation treatment is a medical procedure that uses high-energy rays to destroy or damage cancer cells. It's a targeted approach that aims to minimize harm to healthy tissues. The treatment duration varies based on individual health conditions.

47 services46 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

37 services37 patients

Obtaining respiratory data needed to develop the optimal radiation treatment 77293

Obtaining respiratory data is vital for optimal radiation treatment. This involves tracking your breathing patterns to ensure the precise delivery of radiation to the target area, minimizing damage to healthy tissue. It's a non-invasive process and contributes to effective treatment.

34 services32 patients

Design and construction of simple radiation treatment device 77332

A simple radiation treatment device is designed and built to target specific areas in your body with high energy rays. This process is carefully planned to ensure that the radiation accurately reaches the area needing treatment, while minimizing exposure to healthy tissues.

28 services28 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

25 services16 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

22 services22 patients

Management of cranial lesion surgery using radiation over multiple sessions 77435

This procedure involves using targeted radiation to treat a lesion in the brain over several sessions. The radiation destroys the abnormal cells, helping to control or eliminate the lesion. It's a non-invasive treatment, meaning no surgical cuts are made.

19 services19 patients

Complex radiation therapy planning for delivery of external radiation 77307

Complex radiation therapy planning involves creating a detailed plan to deliver targeted radiation doses. The process includes imaging scans to identify the area needing treatment, and designing a specific radiation plan to protect healthy tissue while effectively treating the disease.

16 services16 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Saint Francis Hospital, Inc

Acute Care Hospitals · Tulsa, OK

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370091

Location6161 South YaleTulsa, OK 74136 · Tulsa County

Emergency services Birthing friendly

Saint Francis Hospital South, LLC

Acute Care Hospitals · Tulsa, OK

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370218

Location10501 East 91st Street SouthTulsa, OK 74133 · Tulsa County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04240 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$162.77 typical visit price

range $53.26 – $162.77

Typical copayment $40.69 (range $13.31 – $40.69)

Most-billed visit code 99205

Established Patient

$66.74 typical visit price

range $16.90 – $132.79

Typical copayment $16.68 (range $4.22 – $33.19)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.22/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

82.41

Improvement Activities

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANGELA WOOD CRNA

Nurse Anesthetist, Certified Registered

300 MAIN ST, CENTRAL MAINE MEDICAL CENTER
LEWISTON, ME 04240

Androscoggin County (207) 795-0111

DANA MCCOY PT

Physical Therapist