Asa Joel Nixon, M.D., M.P.H.
Radiation Oncology Physician · Dover, NH
Asa Joel Nixon, M.D., M.P.H. is a radiation oncology physician with a practice address in Dover, New Hampshire, and NPI 1730285172, issued on Sep 15, 2006. Check the license (New Hampshire 10630, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Asa Joel Nixon
- Credential
- M.D., M.P.H.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 10630 NH
Self-reported in NPPES; status is on the state search - Practice location
- 789 Central Ave, Dover, NH 03820
- Phone
- (603) 742-8787
- Enumerated
- Sep 15, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid IDs
- 3134296 MA
20001809 NH - Medicare enrollment
- Enrolled (PECOS I20051230000619); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 40 in New Hampshire → Look up another NPI →
Also registered at 789 Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ali Al-Alwan, MDPulmonary Disease Physician1235320318
- Belinda Alcaraz, CRNACertified Registered Nurse Anesthetist1144207598
- Danielle Amero, OTD, OTR/L, CHTOccupational Therapist1184239493
- Cathleen Ammann, MDHospitalist Physician1821179540
- Patricia Auty, MDSurgery Physician1407073794
- Glenn Bacon, DOAnesthesiology Physician1780662262
Verify Asa Joel Nixon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 10630Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average radiation oncology physician in 2024
64 Medicare Part D claims for 32 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Tamsulosin Hcl29 claims
- Oxycodone Hcl11 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Radiation Oncology Associates, PAManchester, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Asa Joel Nixon among 40 radiation oncology physician records in New Hampshire
Asa Joel Nixon, M.D., M.P.H. is one of 40 radiation oncology physician records with a practice address in New Hampshire. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 58% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated1988 · median 2005 among the 35 with a school on file
- Record last updated2007 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in New Hampshire
There are 40 radiation oncology physician records in New Hampshire.
All 40 in New Hampshire → Every provider in Dover → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Jeffrey Brower, M.D., PH.D.Dover, NH 038201588912307
- Jeffrey Lemons, MDDover, NH 038201073959920
- Arul Mahadevan, MDDover, NH 038201326148487
- Su Metcalfe, M.D., M.P.H.Dover, NH 038201770690471
- Himanshu Singh, MDDover, NH 038201942308655
- Virginia Osborn, M.DExeter, NH 038331023457223
- Abbas Rattani, MDExeter, NH 038331700346368
- Jaipreet Suri, MDExeter, NH 038331013329382
Common questions
What is Asa Joel Nixon, M.D., M.P.H.'s NPI number?
Asa Joel Nixon, M.D., M.P.H.'s National Provider Identifier (NPI) is 1730285172, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Asa Joel Nixon, M.D., M.P.H. located?
The NPPES record lists a practice address at 789 Central Ave, Dover, NH, 03820. Phone: (603) 742-8787. Providers update this record themselves, so call before visiting.
How can I verify Asa Joel Nixon, M.D., M.P.H.'s license?
NPPES lists New Hampshire license number 10630, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Asa Joel Nixon, M.D., M.P.H. prescribe under Medicare Part D?
In 2024, Asa Joel Nixon, M.D., M.P.H. had 64 Medicare Part D claims for 32 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Asa Joel Nixon, M.D., M.P.H.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.