Radiation Oncology in District of Columbia
37 licensed radiation oncologists practicing in District of Columbia across 11 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 District of Columbia
25 of 37 shown have disclosed payments in CMS Open Payments (2024)
Showing 37 of 37 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, $8,347 was disclosed to this physician across 12 transactions by pharmaceutical or medical-device companies.
Mostly charitable contributions ($8,000) and entertainment ($347).
Largest single payer: ACCURAY INCORPORATED ($8,000).
Ebrahim Ashayeri, MD
2041 Georgia Ave Nw
Washington, DC 20060 · (202) 865-1421
License: MD10822 (DC)
Sheree Elise Brown, MD
320 Kennestone Hospital Blvd, Ll1
Marietta, GA 30060 · (770) 793-7500
License: 58153 (GA)
In 2024, $169 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($169).
Largest single payer: Gilead Sciences, Inc. ($102).
Aidan Michael Burke, MD
600 Moye Blvd
Greenville, NC 27834 · (252) 744-1888
License: 2020-00416 (NC)
In 2024, $20 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($20).
Largest single payer: Sirtex Medical Inc ($20).
Joann Collier-Manning
3800 Reservoir Rd Nw
Washington, DC 20007 · (202) 745-8314
License: 14508 (DC)
In 2024, $741 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($741).
Largest single payer: Teleflex LLC ($232).
In 2024, $128,267 was disclosed to this physician across 109 transactions by pharmaceutical or medical-device companies.
$5,540 was research funding (clinical-trial work); the remainder was consulting fees ($44,702) and stock or ownership interest ($42,250).
Largest single payer: Blue Earth Diagnostics Limited ($48,822).
Victoria Jane Croog, MD
5255 Loughboro Rd Nw
Washington, DC 20016 · (202) 537-4787
License: D74688 (MD)
In 2023, $41 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($41).
Sana Sara Dastgheyb, MD, PHD
50 Irving St Nw
Washington, DC 20422 · (202) 745-8000
License: MD481201 (PA)
Anatoly Dritschilo, MD
3800 Reservoir Rd Nw
Washington, DC 20007 · (202) 444-3320
License: 11702 (DC)
Jacquelyn B. Dunmore-Griffith, MD
8116 Good Luck Rd Ste Ll05
Lanham, MD 20706 · (240) 542-3060
License: D0046901 (MD)
In 2023, $236 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($236).
In 2024, $917 was disclosed to this physician across 28 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($798) and consulting fees ($119).
Largest single payer: Teleflex LLC ($129).
Matthew Kenneth Forsthoefel, MD
2150 Pennsylvania Ave Nw
Washington, DC 20037 · (202) 741-3000
License: 01085658A (IN)
In 2024, $567 was disclosed to this physician across 20 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($567).
Largest single payer: BIOPROTECT MEDICAL, INC. ($165).
In 2023, $93 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($93).
Sharad Goyal, MD
195 Little Albany St
New Brunswick, NJ 08901 · (732) 253-3939
License: MD045224 (DC)
In 2024, $926 was disclosed to this physician across 22 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($926).
Largest single payer: Sumitomo Pharma America, Inc. ($497).
Chengcheng Gui
600 N Wolfe St, The Johns Hopkins Hospital
Baltimore, MD 21287 · (410) 955-5000
License: D0103180 (MD)
In 2023, $40 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($40).
James Arthur Knight, MD
University of Kentucky, 800 Rose Street
Lexington, KY 40536 · (859) 323-2636
License: D0103630 (MD)
In 2024, $506 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($506).
Largest single payer: Novocure Inc. ($289).
Rachit Kumar, MD
5255 Loughboro Rd Nw
Washington, DC 20016 · (202) 537-4787
License: MD210002961 (DC)
In 2024, $22 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($22).
Largest single payer: Gilead Sciences, Inc. ($22).
Carmen Kut, MD PHD
5255 Loughboro Rd Nw
Washington, DC 20016 · (202) 537-4788
License: MD210003171 (DC)
Jonathan Lischalk, MD
3800 Reservoir Rd Nw Dept of
Washington, DC 20007 · (202) 444-3320
License: MD044917 (DC)
In 2024, $4,147 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly charitable contributions ($4,000) and entertainment ($147).
Largest single payer: ACCURAY INCORPORATED ($4,000).
Serena Mao, MD, PHD
401 N Broadway St Ste 1440
Baltimore, MD 21287 · (410) 955-7390
License: MD600003625 (DC)
Nam Phong Nguyen, MD
2041 Georgia Ave Nw Huh B810
Washington, DC 20060 · (202) 865-1421
License: MD16513 (DC)
In 2024, $62 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($62).
Largest single payer: Progenics Pharmaceuticals, Inc. ($44).
Olusola Obayomi-Davies, MD
320 Kennestone Hospital Blvd Ste Ll1
Marietta, GA 30060 · (770) 793-7500
License: 84047 (GA)
In 2024, $573 was disclosed to this physician across 13 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($454) and consulting fees ($119).
Largest single payer: Siemens Medical Solutions USA, Inc. ($210).
In 2024, $684 was disclosed to this physician across 18 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($684).
Largest single payer: Sumitomo Pharma America, Inc. ($409).
Adedamola Omogbehin, MD
110 Irving Street Nw
Washington, DC 20010 · (202) 877-3925
License: MD32344 (DC)
In 2024, $63 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($63).
Largest single payer: Merck Sharp & Dohme LLC ($35).
Brandi Rachel Page, MD
5255 Loughboro Rd Nw
Washington, DC 20016 · (202) 537-4787
License: MD043492 (DC)
In 2024, $158 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($158).
Largest single payer: Novocure Inc. ($158).
Pamela Dawn Randolph Jackson, MD
110 Irving St Nw
Washington, DC 20010 · (800) 353-0788
License: DC 19357 (DC)
In 2024, $155 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($155).
Largest single payer: Sumitomo Pharma America, Inc. ($78).
In 2023, $1,626 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly travel and lodging ($1,509) and entertainment ($117).
Sherif Shaaban, MD
5255 Loughboro Rd Nw
Washington, DC 20016 · (202) 537-2000
License: MD210002324 (DC)
Christina Irene Tsien, MD
5255 Loughboro Rd Nw Bldg A1
Washington, DC 20016 · (314) 747-7236
License: D88476 (MD)
In 2024, $2,977 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly meals and beverages ($1,760) and charitable contributions ($1,125).
Largest single payer: Siemens Medical Solutions USA, Inc. ($2,977).
Keith Robert Unger, MD
3800 Reservoir Rd Nw
Washington, DC 20007 · (202) 444-2600
License: MD037664 (DC)
In 2024, $19 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($19).
Largest single payer: Siemens Medical Solutions USA, Inc. ($19).
Jean Lundberg Wright, MD
5255 Loughboro Rd Nw
Washington, DC 20016 · (202) 537-4788
License: D76913 (MD)
In 2024, $172 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($172).
Largest single payer: Novocure Inc. ($172).
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