Robert Spiegel, M.D.
NPI 1578876371 · Hematology & Oncology Physician · Westfield, NJ
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Spiegel, M.D. is a Hematology & Oncology Physician provider in Westfield, NJ (NPI 1578876371).
Provider details
- NPI number
- 1578876371
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 127653-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18,078 across 10 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-07-21
- Last updated
- 2015-06-22
Frequently asked questions
- What is Robert Spiegel's NPI number?
- Robert Spiegel's National Provider Identifier (NPI) is 1578876371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Spiegel's specialty?
- Robert Spiegel is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Spiegel located?
- Robert Spiegel's practice location on file with NPPES is 400 Elm St, Westfield, NJ 07090-3106.
- What is Robert Spiegel's phone number?
- The practice phone number listed in the NPPES registry for Robert Spiegel is (908) 392-5489.
- Does Robert Spiegel accept Medicare?
- Robert Spiegel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Spiegel's NPI active?
- Yes — Robert Spiegel's NPI (1578876371) is active in the NPPES registry as of the last update on 2015-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.