John Zheng Nan, M.D
Interventional Cardiology Physician · Newport Beach, CA
John Zheng Nan, M.D is an interventional cardiology physician with a practice address in Newport Beach, California, and NPI 1013336643, issued on Apr 10, 2014. Check the license (California A189786, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Zheng Nan
- Credential
- M.D
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- A189786 CA
Self-reported in NPPES; status is on the state search - Practice location
- 455 Old Newport Blvd Ste 200, Newport Beach, CA 92663
- Phone
- (949) 548-9611
- Enumerated
- Apr 10, 2014
- Record last updated
- Apr 21, 2025
- Medicare enrollment
- Enrolled (PECOS I20231206001912); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 632 in California → Look up another NPI →
Also registered at 455 Old Newport Blvd Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric ThaiPhysician Assistant1588243067
Verify John Zheng Nan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A189786Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
1,618 Medicare Part D claims for 314 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Metoprolol Succinate209 claims
- Eliquis192 claims
- Amlodipine Besylate116 claims
- Atorvastatin Calcium104 claims
- Losartan Potassium78 claims
- Clopidogrel74 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: $247.39
12 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Newport Heart Medical Group IncNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Zheng Nan among 632 interventional cardiology physician records in California
John Zheng Nan, M.D is one of 632 interventional cardiology physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 84% of them.
- NPI issued2014 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2014 · median 2001 among the 526 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in California
There are 632 interventional cardiology physician records in California.
All 632 in California → Every provider in Newport Beach → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Kevin Kheder, M.D.Newport Beach, CA 926631033597885
- Allen Kuo, MD, MPHNewport Beach, CA 926631598922320
- Babak Pezeshki, M.D.Newport Beach, CA 926631245269802
- Richard Caso, M.D.Aliso Viejo, CA 926561407822141
- Amarpal Chana, M.D.Laguna Hills, CA 926531669763447
- Cheng-Han Chen, M.D., PH.D.Laguna Hills, CA 926531215181722
- John Hollowed, MDLaguna Hills, CA 926531891115572
- Milan Patel, M.D.Laguna Hills, CA 926531952447476
Common questions
What is John Zheng Nan, M.D's NPI number?
John Zheng Nan, M.D's National Provider Identifier (NPI) is 1013336643, issued on Apr 10, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John Zheng Nan, M.D located?
The NPPES record lists a practice address at 455 Old Newport Blvd Ste 200, Newport Beach, CA, 92663. Phone: (949) 548-9611. Providers update this record themselves, so call before visiting.
How can I verify John Zheng Nan, M.D's license?
NPPES lists California license number A189786, 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 John Zheng Nan, M.D prescribe under Medicare Part D?
In 2024, John Zheng Nan, M.D had 1,618 Medicare Part D claims for 314 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.