James Warren Reznick, DO
Cardiovascular Disease Physician · Newport Beach, CA
James Warren Reznick, DO is a cardiovascular disease physician with a practice address in Newport Beach, California, and NPI 1659376689, issued on Jun 16, 2005. Check the license (California 20A6509, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Warren Reznick
- Credential
- DO
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- 20A6509 CA
007666 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 611 Lido Park Dr Apt 6A, Newport Beach, CA 92663
- Phone
- (949) 689-2231
- Enumerated
- Jun 16, 2005
- Record last updated
- Nov 4, 2022
- Medicare enrollment
- Enrolled (PECOS I20190226000587); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Verify James Warren Reznick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
886 Medicare Part D claims for 159 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Rosuvastatin Calcium81 claims
- Metoprolol Succinate77 claims
- Losartan Potassium72 claims
- Amlodipine Besylate68 claims
- Hydrochlorothiazide57 claims
- Losartan-Hydrochlorothiazide46 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.
Bills Medicare through one group practice
- Active Vital Care LLCPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Warren Reznick among 2,574 cardiovascular disease physician records in California
James Warren Reznick, DO is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1981 · median 1999 among the 1,742 with a school on file
- Record last updated2022 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Newport Beach → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Thomas Benvenuti, MDNewport Beach, CA 926631699708966
- Darel Benvenuti, MDNewport Beach, CA 926631912915364
- Jeffrey Bruss, M.D.Newport Beach, CA 926631942290309
- Bonnie Gainer, M.D.Newport Beach, CA 926631972592319
- Richard Haskell, M.D.Newport Beach, CA 926631992794465
- Neala Hunter, M.D.Newport Beach, CA 926631952390395
- Dipti Itchhaporia, MDNewport Beach, CA 926631316990070
- Desmond Levin, M.D.Newport Beach, CA 926631730178807
Common questions
What is James Warren Reznick, DO's NPI number?
James Warren Reznick, DO's National Provider Identifier (NPI) is 1659376689, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Warren Reznick, DO located?
The NPPES record lists a practice address at 611 Lido Park Dr Apt 6A, Newport Beach, CA, 92663. Phone: (949) 689-2231. Providers update this record themselves, so call before visiting.
How can I verify James Warren Reznick, DO's license?
NPPES lists California license number 20A6509, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Warren Reznick, DO prescribe under Medicare Part D?
In 2024, James Warren Reznick, DO had 886 Medicare Part D claims for 159 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.
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.