Radiation Oncology in Maine
33 licensed radiation oncologists practicing in Maine across 15 cities.
This page republishes public records from the federal NPI Registry, which every licensed U.S. healthcare provider is required to maintain. These are federal-agency records, not a directory we compile.
Source: NPI Registry · last checked
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NPI Registry records — Radiation Oncology in Maine
18 of 33 shown have disclosed payments in CMS Open Payments (2024)
Showing 33 of 33 federal NPI records, alphabetical by last name. Contact details come directly from the NPI Registry — verify currency with the provider's office. Pharma / device payment disclosures from CMS Open Payments are shown where the physician appears in that federal database.
In 2024, $248 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($248).
Largest single payer: AstraZeneca Pharmaceuticals LP ($215).
In 2024, $144 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($144).
Largest single payer: AstraZeneca Pharmaceuticals LP ($94).
In 2024, $590 was disclosed to this physician across 28 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($590).
Largest single payer: Janssen Biotech, Inc. ($81).
In 2023, $17 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($17).
William Arthur Castrucci, MD
33 Whiting Hill Rd
Brewer, ME 04412 · (207) 973-7499
License: 018168 (ME)
In 2024, $41 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly gifts ($21) and entertainment ($20).
Largest single payer: Pfizer Inc. ($21).
Matthew David Cheney, MD, PHD
22 Bramhall St
Portland, ME 04102 · (207) 662-2276
License: MD20455 (ME)
In 2023, $29 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($29).
In 2024, $20 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($20).
Largest single payer: Siemens Medical Solutions USA, Inc. ($20).
John Fletcher Drogos, MD
361 Old Belgrade Rd
Augusta, ME 04330 · (207) 621-6100
License: 125-070514 (IL)
In 2024, $17 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($17).
Largest single payer: Genmab U.S., Inc. ($17).
In 2023, $284 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($284).
In 2024, $74 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($74).
Largest single payer: Siemens Medical Solutions USA, Inc. ($51).
In 2024, $138 was disclosed to this physician across 7 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($138).
Largest single payer: AstraZeneca Pharmaceuticals LP ($66).
Julian A Johnson, MD
1800 Howell Mill Rd Nw Ste Ll10
Atlanta, GA 30318 · (404) 425-7900
License: 90312 (GA)
In 2024, $19 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($19).
Largest single payer: Hologic Sales and Service, LLC ($19).
Peter M Lambert, MD
33 Whiting Hill Rd Ste 1
Brewer, ME 04412 · (207) 973-8198
License: 0009234 (ME)
Emily Corinne Mayberry MaCduffie, MD
100 Campus Dr Unit 121
Scarborough, ME 04074 · (207) 396-7788
License: MD28918 (ME)
Julia Manzerova, MD/PHD
33 Whiting Hill Rd Ste 1
Brewer, ME 04412 · (207) 973-4280
License: MD26837 (ME)
In 2024, $215 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($215).
Largest single payer: AstraZeneca Pharmaceuticals LP ($215).
In 2024, $24 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($24).
Largest single payer: Merck Sharp & Dohme LLC ($24).
In 2023, $40 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($40).
Lakshmi Narayan N. Shanmugham, MD
1 Eaton Pl Ste 100
Worcester, MA 01608 · (508) 363-7100
License: 232043 (MA)
In 2024, $225 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($225).
Largest single payer: AstraZeneca Pharmaceuticals LP ($195).
Kurt Matthew Snyder, MD
33 Whiting Hill Rd, Suite 1
Brewer, ME 04412 · (207) 873-6034
License: 018848 (ME)
In 2024, $202 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($202).
Largest single payer: Novocure Inc. ($182).
John Joseph Swalec, MD
33 Whiting Hill Rd Ste 1
Brewer, ME 04412 · (207) 973-7499
License: 013760 (ME)
In 2024, $21 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($21).
Largest single payer: Pfizer Inc. ($21).
Paul Conrad Szal, MD
33 Whiting Hill Rd Ste 1
Brewer, ME 04412 · (207) 973-8198
License: 010638 (ME)
Susan Tyler, MD, MSC, FRCPC
Grant 6 489 State St
Bangor, ME 04401 · (207) 973-6604
License: MD23119 (ME)
Payment totals shown for the latest published program year (2024). Presence of disclosed payments is not, on its own, a conflict of interest. Physicians dispute records directly with CMS (dispute process). How we show this.
Open Payments figures as displayed on . Corrections flow from the manufacturer through CMS and are adopted on our next refresh.
What this page is: a republication of public federal NPI Registry records, filtered to the radiation oncology taxonomy. It is not a directory we curate, and inclusion is automatic based on each provider's own NPI filing with CMS. Providers who believe their NPI record is inaccurate should update it directly with CMS at npiregistry.cms.hhs.gov; our next refresh adopts the corrected federal record.
Practice info disclaimer: Provider addresses and phone numbers come from the NPI Registry, which providers update at their discretion. Always call ahead to confirm the provider is currently accepting patients and is at the listed address.
Medical disclaimer: This page is not a quality ranking and does not constitute medical advice or endorsement. Choose a provider in consultation with your primary care physician or care team.
Source: NPI Registry (taxonomy: Radiation Oncology) · Last checked: 2026-04-20