Eric Mark Horwitz, M.D.
Radiation Oncology Physician · Philadelphia, PA
Eric Mark Horwitz, M.D. is a radiation oncology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1952322679, issued on Jul 21, 2006. Check the license (Pennsylvania MD062073L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Eric Mark Horwitz
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- MD062073L PA
Self-reported in NPPES; status is on the state search - Practice location
- 333 Cottman Ave, Philadelphia, PA 19111
- Phone
- (215) 728-6900
- Enumerated
- Jul 21, 2006
- Record last updated
- Apr 13, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 0016501800002 PA
- Medicare enrollment
- Enrolled (PECOS I20100621000104); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 383 in Pennsylvania → Look up another NPI →
Also registered at 333 Cottman Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Philip Abbosh, MDPHDUrology Physician1871749424
- Andrea AbbottDiagnostic Radiology Physician1316268444
- Jesty Abraham, DODiagnostic Radiology Physician1417118373
- Allison Aggon, D.O.Surgery Physician1972759900
- Tahseen Al-Saleem, M.D.Anatomic Pathology & Clinical Pathology Physician1962474056
- Md Usman Ali, M.D.Internal Medicine Physician1619316882
Verify Eric Mark Horwitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD062073LCheck 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% more Medicare Part D claims than the average radiation oncology physician in 2024
195 Medicare Part D claims for 68 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl158 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $7,494.52
18 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 one group practice
- Temple Faculty Practice Plan IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eric Mark Horwitz among 383 radiation oncology physician records in Pennsylvania
Eric Mark Horwitz, 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 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
- Graduated1992 · median 2004 among the 285 with a school on file
- Record last updated2018 · 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 Philadelphia → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Penny Anderson, M.D.Philadelphia, PA 191111811969868
- Jo Ann Chalal, MDPhiladelphia, PA 191111316944424
- Randi Cohen, MDPhiladelphia, PA 191111366570228
- Thomas Galloway, MDPhiladelphia, PA 191111710052212
- Mark Hallman, M.D., PH.D.Philadelphia, PA 191111124256557
- Arthur Harvey, MDPhiladelphia, PA 191111962425843
- Shelly Hayes, MDPhiladelphia, PA 191111346457918
- Lanea Keller, MDPhiladelphia, PA 191111477714541
Common questions
What is Eric Mark Horwitz, M.D.'s NPI number?
Eric Mark Horwitz, M.D.'s National Provider Identifier (NPI) is 1952322679, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric Mark Horwitz, M.D. located?
The NPPES record lists a practice address at 333 Cottman Ave, Philadelphia, PA, 19111. Phone: (215) 728-6900. Providers update this record themselves, so call before visiting.
How can I verify Eric Mark Horwitz, M.D.'s license?
NPPES lists Pennsylvania license number MD062073L, 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 Eric Mark Horwitz, M.D. prescribe under Medicare Part D?
In 2024, Eric Mark Horwitz, M.D. had 195 Medicare Part D claims for 68 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Eric Mark Horwitz, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. 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.