NPPES file of Aug 9, 2026

Elan Diamond, M.D.

Hematology & Oncology Physician · Bloomfield, NJ

Elan Diamond, M.D. is a hematology & oncology physician with a practice address in Bloomfield, New Jersey, and NPI 1659530608, issued on Jun 5, 2008. Check the license (New Jersey 25MA09722600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659530608
Name
Elan Diamond
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
25MA09722600 NJ
Self-reported in NPPES; status is on the state search
Practice location
1515 Broad St Ste B120, Bloomfield, NJ 07003
Phone
(973) 873-7000
Enumerated
Jun 5, 2008
Record last updated
Jun 6, 2022
Medicare enrollment
Enrolled (PECOS I20150805008953); accepts Medicare assignment
Medical or professional school
Js Weill Medical College, Cornell University, 2008
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest hematology & oncology physician records → All 399 in New Jersey → Look up another NPI →

Also registered at 1515 Broad St Ste B120

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Dov Gorshein, MDHematology (Internal Medicine) Physician1396897732
  2. Anthony Ingenito, MDRadiation Oncology Physician1710940127
  3. Deborah Josefson, MDAnatomic Pathology Physician1558464073
  4. Steve Lebovitch, M.D.Urology Physician1396984944
  5. Sharon Li, M.D.Urology Physician1508894874
  6. John Sanzone, M.D.Urology Physician1699790980

Verify Elan Diamond in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA09722600    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.6 times the Medicare Part D claims of the average hematology & oncology physician in 2024

4,020 Medicare Part D claims for 425 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims. 76 claims were for opioids.

  1. Elan Diamond4,020
  2. Specialty average877

Most prescribed

  1. Prednisone862 claims
  2. Nubeqa812 claims
  3. Abiraterone Acetate735 claims
  4. Orgovyx307 claims
  5. Megestrol Acetate173 claims
  6. Xtandi159 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: $16,133.91

10 payments; by number, the most common kind was consulting fee; the largest payer was Bayer Healthcare Pharmaceuticals 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.

  1. Elan Diamond$16,134
  2. Specialty average$7,481

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

  1. Summit Medical Group PABerkeley Heights, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Elan Diamond among 399 hematology & oncology physician records in New Jersey

Elan Diamond, 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
  • Graduated2008 · median 2002 among the 294 with a school on file
  • Record last updated2022 · 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).

Hematology & Oncology Physician providers in New Jersey

There are 399 hematology & oncology physician records in New Jersey.

All 399 in New Jersey → Every provider in Bloomfield → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Devarajan Iyengar, M.D.Bayonne, NJ 070021689620700
  2. Bernard Kulper, MDAvenel, NJ 070011063499218
  3. Gregory Shypula, MDAvenel, NJ 070011902869720
  4. Ibrahim Sidhom, MDCarteret, NJ 070081851301220
  5. Azhagasundaram Ganesan, MDClifton, NJ 070111285722736
  6. Marianna Strakhan, M.D.Clifton, NJ 070121144489022
  7. Richards Afonja, MDClifton, NJ 070131255300141
  8. Andrew Lu, M.D.Clifton, NJ 070131356890560

Common questions

What is Elan Diamond, M.D.'s NPI number?

Elan Diamond, M.D.'s National Provider Identifier (NPI) is 1659530608, issued on Jun 5, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Elan Diamond, M.D. located?

The NPPES record lists a practice address at 1515 Broad St Ste B120, Bloomfield, NJ, 07003. Phone: (973) 873-7000. Providers update this record themselves, so call before visiting.

How can I verify Elan Diamond, M.D.'s license?

NPPES lists New Jersey license number 25MA09722600, 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 Elan Diamond, M.D. prescribe under Medicare Part D?

In 2024, Elan Diamond, M.D. had 4,020 Medicare Part D claims for 425 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.