Marjan Leoni Koch, M.D
Hematology & Oncology Physician · Camden, NJ
Marjan Leoni Koch, M.D is a hematology & oncology physician with a practice address in Camden, New Jersey, and NPI 1164608816, issued on Jan 11, 2008. Check the license (New Jersey 25MA08317100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Marjan Leoni Koch
- Credential
- M.D
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 25MA08317100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 3 Cooper Plz, Camden, NJ 08103
- Phone
- (856) 963-3573
- Enumerated
- Jan 11, 2008
- Record last updated
- Apr 25, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (856) 338-9211
- Medicare enrollment
- Enrolled (PECOS I20110124000751); accepts Medicare assignment
- Medical or professional school
- Temple University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 399 in New Jersey → Look up another NPI →
Also registered at 3 Cooper Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marjan Leoni Koch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA08317100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
46 Medicare Part D claims for 23 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of 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): 81.7 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: $29.51
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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
- Cmc Department OF Medicine Group PAVoorhees, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marjan Leoni Koch among 399 hematology & oncology physician records in New Jersey
Marjan Leoni Koch, M.D is one of 399 hematology & oncology physician records with a practice address in New Jersey. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 57% of them.
- NPI issued2008 · 57% of these records are older, 37% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2004 · median 2002 among the 294 with a school on file
- Record last updated2016 · 59% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 hematology & oncology physician records list a practice address in Camden
They are 34 of the 3,188 NPPES records with a practice address in Camden, and 399 hematology & oncology physician records in New Jersey.
All 399 in New Jersey → Every provider in Camden → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Kevin Callahan, D.O.Camden, NJ 081031134125156
- Christina Clay, M.D.Camden, NJ 081031326029042
- Linda Devereux, MDCamden, NJ 081031720187206
- Peter Georges, M.D.Camden, NJ 081031861699944
- Generosa Grana, MDCamden, NJ 081031588773824
- Jenia Jenab-Wolcott, M.D.Camden, NJ 081031619039260
- Howard Kesselheim, D.O.Camden, NJ 081031003812231
- Paul Leibrandt, MDCamden, NJ 081031205814001
Common questions
What is Marjan Leoni Koch, M.D's NPI number?
Marjan Leoni Koch, M.D's National Provider Identifier (NPI) is 1164608816, issued on Jan 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marjan Leoni Koch, M.D located?
The NPPES record lists a practice address at 3 Cooper Plz, Camden, NJ, 08103. Phone: (856) 963-3573. Providers update this record themselves, so call before visiting.
How can I verify Marjan Leoni Koch, M.D's license?
NPPES lists New Jersey license number 25MA08317100, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marjan Leoni Koch, M.D prescribe under Medicare Part D?
In 2024, Marjan Leoni Koch, M.D had 46 Medicare Part D claims for 23 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Marjan Leoni Koch, M.D's MIPS final score?
The 2023 MIPS final score is 81.7 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.