Tobias Robert Chapman, M.D.
Radiation Oncology Physician · Fairfax, VA
Tobias Robert Chapman, M.D. is a radiation oncology physician with a practice address in Fairfax, Virginia, and NPI 1588927016, issued on Jun 19, 2012. Check the license (Virginia 0101265846, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Tobias Robert Chapman
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 0101265846 VA
Self-reported in NPPES; status is on the state search - Practice location
- 8081 Innovation Park Dr, Fairfax, VA 22031
- Phone
- (571) 472-0606
- Enumerated
- Jun 19, 2012
- Record last updated
- Jun 28, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (571) 472-0540
- Medicaid IDs
- 1588927016 VA
081865334 DC - Medicare enrollment
- Enrolled (PECOS I20190115002607); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 8081 Innovation Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bilal Abboud, RPHPharmacist1851953269
- Nagla Abdel Karim, MDMedical Oncology Physician1881805166
- Vanya Aggarwal, MDHematology & Oncology Physician1134784309
- Germame Ajebo, MDHematology (Internal Medicine) Physician1396183661
- Jafar Al-Mondhiry, M.D.Medical Oncology Physician1528446242
- Sheinei Alan, MD, PHDInternal Medicine Physician1073046538
Verify Tobias Robert Chapman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101265846Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average radiation oncology physician in 2024
161 Medicare Part D claims for 80 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl63 claims
- Gabapentin17 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.
Industry payments in 2024: $251.24
4 payments; by number, the most common kind was food and beverage; the largest payer was Galvanize Therapeutics, Inc. 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
- Radiation Oncology Associates PCFalls Church, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in Virginia
There are 137 radiation oncology physician records in Virginia.
Other radiation oncology physician records in Virginia
- Chike Abana, MD, PHDNorfolk, VA1992268783
- Olubunmi Abayomi, M.D.Richmond, VA1457379497
- Bret Adams, MD, PHDRoanoke, VA1891056495
- Harold Agbahiwe, M.D.Fairfax, VA1073797460
- Sanjeev Aggarwal, MDGainesville, VA1316923014
- M Moinuddin Ali, MDRichmond, VA1366428419
- Alexander Allen, MDHampton, VA1902486384
- Rosemary Altemus, MDReston, VA1083687156
- Biral Amin, M.D.Newport News, VA1972565315
- Victor Archie, MDSuffolk, VA1710970017
Common questions
What is Tobias Robert Chapman, M.D.'s NPI number?
Tobias Robert Chapman, M.D.'s National Provider Identifier (NPI) is 1588927016, issued on Jun 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Tobias Robert Chapman, M.D. located?
The NPPES record lists a practice address at 8081 Innovation Park Dr, Fairfax, VA, 22031. Phone: (571) 472-0606. Providers update this record themselves, so call before visiting.
How can I verify Tobias Robert Chapman, M.D.'s license?
NPPES lists Virginia license number 0101265846, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tobias Robert Chapman, M.D. prescribe under Medicare Part D?
In 2024, Tobias Robert Chapman, M.D. had 161 Medicare Part D claims for 80 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
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.