NPPES file of Aug 9, 2026

Heajung Nguyen, MD

Clinical Cardiac Electrophysiology Physician · Baldwin Park, CA

Heajung Nguyen, MD is a clinical cardiac electrophysiology physician with a practice address in Baldwin Park, California, and NPI 1821484403, issued on Apr 10, 2015. Check the license (California A149005, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821484403
Name
Heajung Nguyen
Credential
MD
Primary taxonomy
Clinical Cardiac Electrophysiology Physician 207RC0001X
License number
A149005 CA
Self-reported in NPPES; status is on the state search
Practice location
1011 Baldwin Park Blvd, Baldwin Park, CA 91706
Phone
(626) 851-5215
Enumerated
Apr 10, 2015
Record last updated
Oct 27, 2023
Medicare enrollment
Enrolled (PECOS I20231211001566); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1011 Baldwin Park Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Abdulla, M.D.Surgery Physician1699200840
  2. Julia Aburto-Erazo, NPNurse Practitioner1922175777
  3. Mauricio Acevedo, MDInternal Medicine Physician1659442614
  4. Helen Achio, PHARM.D.Pharmacist1225114614
  5. Olufemi Adenuga, M.D, MPHPulmonary Disease Physician1134389125
  6. Soma Agarwal, MDOphthalmology Physician1437220316

Verify Heajung Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A149005
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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75% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024

420 Medicare Part D claims for 124 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Heajung Nguyen420
  2. Specialty average1,710

Most prescribed

  1. Metoprolol Tartrate40 claims
  2. Amiodarone Hcl34 claims
  3. Carvedilol32 claims
  4. Bisoprolol Fumarate30 claims
  5. Eliquis27 claims
  6. Amlodipine Besylate26 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: $1,012.90

74 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Heajung Nguyen$1,013
  2. Specialty average$10,651

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

  1. Southern California Permanente Medical GroupBaldwin Park, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Heajung Nguyen among 304 clinical cardiac electrophysiology physician records in California

Heajung Nguyen, MD is one of 304 clinical cardiac electrophysiology physician records with a practice address in California. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 88% of them.

  • NPI issued2015 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated2015 · median 2002 among the 261 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Cardiac Electrophysiology Physician providers in California

There are 304 clinical cardiac electrophysiology physician records in California.

The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes

  1. Srikant Duggirala, M.D.Covina, CA 917231952507923
  2. Ramanna Merla, MDPomona, CA 917671336343912
  3. Meghna Patel, PA-CPomona, CA 917671750816823
  4. Kevin Liu, MDSan Gabriel, CA 917761821529306
  5. David Mok, MDBurbank, CA 915081619061157
  6. Kenneth Kita, M.DBurbank, CA 915051699034835
  7. Steven CarlsonChula Vista, CA 919111467602946
  8. Farah Dawood, MD MSChula Vista, CA 919111922263466

Common questions

What is Heajung Nguyen, MD's NPI number?

Heajung Nguyen, MD's National Provider Identifier (NPI) is 1821484403, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Heajung Nguyen, MD located?

The NPPES record lists a practice address at 1011 Baldwin Park Blvd, Baldwin Park, CA, 91706. Phone: (626) 851-5215. Providers update this record themselves, so call before visiting.

How can I verify Heajung Nguyen, MD's license?

NPPES lists California license number A149005, 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 Heajung Nguyen, MD prescribe under Medicare Part D?

In 2024, Heajung Nguyen, MD had 420 Medicare Part D claims for 124 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. 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.