Erik D. Assarsson, MD
Radiation Oncology Physician · Bryn Mawr, PA
Erik D. Assarsson, MD is a radiation oncology physician with a practice address in Bryn Mawr, Pennsylvania, and NPI 1306891338, issued on May 25, 2006. Check the license (Pennsylvania MD048428L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Erik D. Assarsson
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- MD048428L PA
Self-reported in NPPES; status is on the state search - Practice location
- 130 S Bryn Mawr Ave, Bryn Mawr, PA 19010
- Phone
- (610) 526-8693
- Enumerated
- May 25, 2006
- Record last updated
- Aug 27, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 0014050210005 PA
- Medicare enrollment
- Enrolled (PECOS I20110610000453); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 1989
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 383 in Pennsylvania → Look up another NPI →
Also registered at 130 S Bryn Mawr Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raymond Adams, MDAnesthesiology Physician1508953472
- Taiwo Aderibigbe, MDAnesthesiology Physician1396182556
- Tamar Aghajanian, PHARM.DPharmacotherapy Pharmacist1336271642
- Ellen Albert, PA-CSurgical Physician Assistant1689078123
- Brunno Alves, DOStudent in an Organized Health Care Education/Training Program1457286080
- Ebere Anokwuru, M.DPsychiatry Physician1619255825
Verify Erik D. Assarsson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD048428LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average radiation oncology physician in 2024
205 Medicare Part D claims for 89 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Tamsulosin Hcl20 claims
- Dexamethasone17 claims
- Tramadol Hcl14 claims
- Celecoxib13 claims
- Oxycodone Hcl11 claims
- Prednisone11 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: $494.49
15 payments; by number, the most common kind was food and beverage; the largest payer was Siemens Medical Solutions USA, 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 2 group practices
- Aesthetic Dermatology Associates PCMedia, PA
- Main Line Radiation Oncology PCWynewood, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erik D. Assarsson among 383 radiation oncology physician records in Pennsylvania
Erik D. Assarsson, MD is one of 383 radiation oncology physician records with a practice address in Pennsylvania. 82% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 51% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1989 · median 2004 among the 285 with a school on file
- Record last updated2007 · 60% 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 Pennsylvania 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 Pennsylvania
There are 383 radiation oncology physician records in Pennsylvania.
All 383 in Pennsylvania → Every provider in Bryn Mawr → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Richard Carella, MDBryn Mawr, PA 190101386683670
- John Lamond, MDUpland, PA 190131982697371
- Nicos Nicolaou, M.D.Bala Cynwyd, PA 190041619998085
- Scott Herbert, M.D.Abington, PA 190011114988748
- Nicolette Huntley, MDAbington, PA 190011265992424
- Wayne Pinover, D.O.Abington, PA 190011780645952
- Gregory Stachelek, M.D., PH.D.Darby, PA 190231245687557
- Rachelle Lanciano, MDDrexel Hill, PA 190261114927365
Common questions
What is Erik D. Assarsson, MD's NPI number?
Erik D. Assarsson, MD's National Provider Identifier (NPI) is 1306891338, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Erik D. Assarsson, MD located?
The NPPES record lists a practice address at 130 S Bryn Mawr Ave, Bryn Mawr, PA, 19010. Phone: (610) 526-8693. Providers update this record themselves, so call before visiting.
How can I verify Erik D. Assarsson, MD's license?
NPPES lists Pennsylvania license number MD048428L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Erik D. Assarsson, MD prescribe under Medicare Part D?
In 2024, Erik D. Assarsson, MD had 205 Medicare Part D claims for 89 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.