Edward M. Marchan, M.D.
Radiation Oncology Physician · Seneca, PA
Edward M. Marchan, M.D. is a radiation oncology physician with a practice address in Seneca, Pennsylvania, and NPI 1245439017, issued on Jul 12, 2007. Check the license (Pennsylvania MD431720, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Edward M. Marchan
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- MD431720 PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Fairfield Dr, Seneca, PA 16346
- Phone
- (814) 676-7900
- Enumerated
- Jul 12, 2007
- Record last updated
- Dec 2, 2025
- Fax
- (814) 676-7887
- Medicare enrollment
- Enrolled (PECOS I20240301000283); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 383 in Pennsylvania → Look up another NPI →
Also registered at 100 Fairfield Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Abalos, M.D.Internal Medicine Physician1215128434
- Keith Adams, MDEmergency Medicine Physician1902845233
- Sheila AdamsOccupational Therapy Assistant1376846782
- Aubrey Alfeo, CRNPNurse Practitioner1578336665
- Ryan Antrilli, RD, LDNRegistered Dietitian1992875199
- Eliza Appau, CRNPNurse Practitioner1457751257
Verify Edward M. Marchan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD431720Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average radiation oncology physician in 2024
73 Medicare Part D claims for 37 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Mometasone Furoate11 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.
Bills Medicare through one group practice
- University OF Pittsburgh Cancer Institute Cancer ServicesSeneca, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Edward M. Marchan among 383 radiation oncology physician records in Pennsylvania
Edward M. Marchan, M.D. 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 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 44% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2004 · median 2004 among the 285 with a school on file
- Record last updated2025 · 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 Seneca → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Razvan Gramatovici, M.D.Seneca, PA 163461922079193
- Brian Karlovits, D.O.Meadville, PA 163351619955291
- Eric Svenson, MDMeadville, PA 163351669526398
- Bernard Eden, MDWarren, PA 163651427035716
- Leroy Korb, M.D.Warren, PA 163651770572430
- Steven Gregoritch, M.D.Oil City, PA 163011841290772
- Stephen Abel, DOClarion, PA 162141033642319
- Tracy Klayton, M.D.Kittanning, PA 162011497948947
Common questions
What is Edward M. Marchan, M.D.'s NPI number?
Edward M. Marchan, M.D.'s National Provider Identifier (NPI) is 1245439017, issued on Jul 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Edward M. Marchan, M.D. located?
The NPPES record lists a practice address at 100 Fairfield Dr, Seneca, PA, 16346. Phone: (814) 676-7900. Providers update this record themselves, so call before visiting.
How can I verify Edward M. Marchan, M.D.'s license?
NPPES lists Pennsylvania license number MD431720, 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 Edward M. Marchan, M.D. prescribe under Medicare Part D?
In 2024, Edward M. Marchan, M.D. had 73 Medicare Part D claims for 37 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.