ELAN DIAMOND M.D.
NPI 1659530608
Internal Medicine - Hematology & Oncology in Bloomfield, NJ
About Elan Diamond M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELAN DIAMOND M.D. (NPI 1659530608) is an individual hematology & oncology provider in Bloomfield, New Jersey, licensed in New Jersey (25MA09722600) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Hackensack University Medical Center, and maintains a secondary practice location in Teaneck.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Elan Diamond M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Elan Diamond reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bloomfield, NJ 07003
- Reassigned Medicare billing, New Jersey enrollment
- 144 clinicians in this Medicare group
Berkeley Heights, NJ 07922
- Reassigned Medicare billing, New Jersey enrollment
- 1,184 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 40
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hackensack University Medical Center
Acute Care Hospitals · Hackensack, NJHoly Name Medical Center
Acute Care Hospitals · Teaneck, NJMorristown Medical Center
Acute Care Hospitals · Morristown, NJNewton Medical Center
Acute Care Hospitals · Newton, NJJfk Medical Center
Acute Care Hospitals · Edison, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07003 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Elan Diamond's NPI number?
The NPI number for Elan Diamond is 1659530608. It was assigned to this individual provider in the NPPES registry on June 5, 2008.
Where is Elan Diamond located?
Elan Diamond practices at 1515 Broad St Ste B120, Bloomfield, NJ 07003. The listed phone number is (973) 873-7000.
What is Elan Diamond's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Elan Diamond enrolled in Medicare?
Yes. Elan Diamond is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Elan Diamond's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elan Diamond reassigns Medicare benefits to 2 organizations: New Jersey Urology LLC (Bloomfield, NJ) and Summit Medical Group PA (Berkeley Heights, NJ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Elan Diamond's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elan Diamond accept?
Health plans from Ambetter Health and Oscar Health list Elan Diamond as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Elan Diamond affiliated with any hospitals?
According to CMS data, Elan Diamond is affiliated with Hackensack University Medical Center, Holy Name Medical Center, Morristown Medical Center, Newton Medical Center and Jfk Medical Center.
When was this NPI record last updated?
The NPPES record for Elan Diamond was last updated on June 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.