JAMES WARREN REZNICK DO
NPI 1659376689
Internal Medicine - Cardiovascular Disease in Newport Beach, CA
About James Warren Reznick Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES WARREN REZNICK DO (NPI 1659376689) is an individual cardiovascular disease provider in Newport Beach, California, licensed in California (20A6509) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Peoria, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (1981).
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
James Warren Reznick Do 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
4Medicare enrollment records show James Reznick reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Irvine, CA 92604
- Reassigned Medicare billing, California enrollment
- 45 clinicians in this Medicare group
Phoenix, AZ 85016
- Reassigned Medicare billing, Arizona enrollment
- 33 clinicians in this Medicare group
Phoenix, AZ 85032
- Reassigned Medicare billing, Arizona enrollment
- 28 clinicians in this Medicare group
Sedona, AZ 86351
- Reassigned Medicare billing, Arizona enrollment
- 15 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 5
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92663 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 James Reznick's NPI number?
The NPI number for James Reznick is 1659376689. It was assigned to this individual provider in the NPPES registry on June 16, 2005.
Where is James Reznick located?
James Reznick practices at 611 Lido Park Dr Apt 6A, Newport Beach, CA 92663. The listed phone number is (949) 689-2231.
What is James Reznick's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is James Reznick enrolled in Medicare?
Yes. James Reznick 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.
What insurance does James Reznick accept?
Health plans from Imperial Insurance Companies, Inc. list James Reznick 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.
When was this NPI record last updated?
The NPPES record for James Reznick was last updated on November 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.