Erik Leroy Zeger, MD
Hematology & Oncology Physician · Wynnewood, PA
Erik Leroy Zeger, MD is a hematology & oncology physician with a practice address in Wynnewood, Pennsylvania, and NPI 1639188659, issued on Aug 7, 2006. Check the license (Pennsylvania MD425881, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Erik Leroy Zeger
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD425881 PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Lancaster Ave, Wynnewood, PA 19096
- Phone
- (610) 645-2494
- Enumerated
- Aug 7, 2006
- Record last updated
- Sep 3, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (610) 645-4456
- Medicare enrollment
- Enrolled (PECOS I20050509000791); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 784 in Pennsylvania → Look up another NPI →
Also registered at 100 Lancaster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tanya Antosy, PA-CSurgical Physician Assistant1669667341
- Shyla Banvi, MDAnesthesiology Physician1417030594
- Paul Gilman, MDHematology & Oncology Physician1215943634
- Lauren HartwellObstetrics & Gynecology Physician1629509971
- Shelia Kambin, M.D.Obstetrics & Gynecology Physician1134169386
- Theresa McHugh, DOHematology & Oncology Physician1053321059
Verify Erik Leroy Zeger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD425881Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
777 Medicare Part D claims for 134 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims. 29 claims were for opioids.
Most prescribed
- Hydroxyurea66 claims
- Eliquis62 claims
- Ondansetron Hcl55 claims
- Dexamethasone43 claims
- Prochlorperazine Maleate41 claims
- Lenalidomide36 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,836.86
81 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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
- Alliance Cancer Specialists P.C.Wynewood, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erik Leroy Zeger among 784 hematology & oncology physician records in Pennsylvania
Erik Leroy Zeger, MD is one of 784 hematology & oncology physician records with a practice address in Pennsylvania. 83% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1999 · median 2004 among the 553 with a school on file
- Record last updated2019 · 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 207RH0003X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Pennsylvania
There are 784 hematology & oncology physician records in Pennsylvania.
All 784 in Pennsylvania → Every provider in Wynnewood → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Zonera Ali, MDWynnewood, PA 190961306852728
- Kathleen Degen, M.D.Wynnewood, PA 190961679952493
- Arezoo Ghaneie, MDWynnewood, PA 190961790853497
- Paul Gilman, MDWynnewood, PA 190961215943634
- David Harris, MDWynnewood, PA 190961871584169
- Tamer Khashab, M.D.Wynnewood, PA 190961336502723
- Peter LebowitzWynnewood, PA 190961942200860
- Theresa McHugh, DOWynnewood, PA 190961053321059
Common questions
What is Erik Leroy Zeger, MD's NPI number?
Erik Leroy Zeger, MD's National Provider Identifier (NPI) is 1639188659, issued on Aug 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Erik Leroy Zeger, MD located?
The NPPES record lists a practice address at 100 Lancaster Ave, Wynnewood, PA, 19096. Phone: (610) 645-2494. Providers update this record themselves, so call before visiting.
How can I verify Erik Leroy Zeger, MD's license?
NPPES lists Pennsylvania license number MD425881, 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 Leroy Zeger, MD prescribe under Medicare Part D?
In 2024, Erik Leroy Zeger, MD had 777 Medicare Part D claims for 134 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Erik Leroy Zeger, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.