Derek Alexander Mumaw, MD
Radiation Oncology Physician · Dartmouth, MA
Derek Alexander Mumaw, MD is a radiation oncology physician with a practice address in Dartmouth, Massachusetts, and NPI 1013532449, issued on Jun 11, 2020. Check the license (Massachusetts 1023968, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Derek Alexander Mumaw
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 1023968 MA
4351046090 MI
MD20767 RI
Self-reported in NPPES; status is on the state search - Practice location
- 537 Faunce Corner RD, Dartmouth, MA 02747
- Phone
- (508) 689-3100
- Enumerated
- Jun 11, 2020
- Record last updated
- Jul 27, 2026
- Medicare enrollment
- Enrolled (PECOS I20250710000814); may accept Medicare assignment
- Medical or professional school
- Hofstra North Shore - Lij School Of Medicine, 2020
- Entity
- Type 1 · individual
Also registered at 537 Faunce Corner RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nathaniel Cook, M.D.Hematology & Oncology Physician1487903472
- Jay Emlen, DPMFoot & Ankle Surgery Podiatrist1033615125
- Shan Qin, M.D., PH.D.Nephrology Physician1891138822
- Paula Walsh, NPGerontology Nurse Practitioner1376992610
Verify Derek Alexander Mumaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1023968Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average radiation oncology physician in 2024
16 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $117.66
1 payment: food and beverage; the largest payer was Tactile Systems Technology 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
- Lifespan Physician Group OF Massachusetts IncFall River, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in Massachusetts
There are 241 radiation oncology physician records in Massachusetts.
Other radiation oncology physician records in Massachusetts
- Anthony Abner, MDCambridge, MA1487629127
- Matthew Abrams, M.D.Boston, MA1104189117
- Todd Adams, M.D.Medford, MA1972751493
- Jenna Adleman, MDBoston, MA1528613833
- Nima Aghdam, M.D.Boston, MA1942696752
- Ayal Aizer, MDBoston, MA1619105095
- Michele Albert, MDBoston, MA1285691972
- Brian Alexander, M.D.Boston, MA1275511149
- Aaron Allen, MDBoston, MA1396849527
- Erik Anderson, M.D. PH.D.Boston, MA1528488269
Common questions
What is Derek Alexander Mumaw, MD's NPI number?
Derek Alexander Mumaw, MD's National Provider Identifier (NPI) is 1013532449, issued on Jun 11, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Derek Alexander Mumaw, MD located?
The NPPES record lists a practice address at 537 Faunce Corner RD, Dartmouth, MA, 02747. Phone: (508) 689-3100. Providers update this record themselves, so call before visiting.
How can I verify Derek Alexander Mumaw, MD's license?
NPPES lists Massachusetts license number 1023968, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Derek Alexander Mumaw, MD prescribe under Medicare Part D?
In 2024, Derek Alexander Mumaw, MD had 16 Medicare Part D claims; 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.