Leo Ungar, M.D.
Clinical Cardiac Electrophysiology Physician · Pasadena, CA
Leo Ungar, M.D. is a clinical cardiac electrophysiology physician with a practice address in Pasadena, California, and NPI 1851702088, issued on May 9, 2014. Check the license (California A139457, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leo Ungar
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- A139457 CA
Self-reported in NPPES; status is on the state search - Practice location
- 625 S Fair Oaks Ave Ste 215, Pasadena, CA 91105
- Phone
- (626) 793-4130
- Enumerated
- May 9, 2014
- Record last updated
- Jul 28, 2022
- Fax
- (626) 793-4324
- Medicare enrollment
- Enrolled (PECOS I20220829003011); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 304 in California → Look up another NPI →
Also registered at 625 S Fair Oaks Ave Ste 215
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evann Eisenberg, M.D.Cardiovascular Disease Physician1922379965
- Adriana Gramsas, DNP, AGNP-CPrimary Care Nurse Practitioner1295232551
- Louise Lalonde, NPAcute Care Nurse Practitioner1669493367
- Rachel Lee, FNPFamily Nurse Practitioner1124865530
- Kaitlyn Park, NPFamily Nurse Practitioner1932668423
- Amish Patel, MDCardiovascular Disease Physician1083938906
Verify Leo Ungar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A139457Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
2,360 Medicare Part D claims for 496 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Eliquis399 claims
- Metoprolol Succinate253 claims
- Carvedilol241 claims
- Rosuvastatin Calcium220 claims
- Amiodarone Hcl146 claims
- Amlodipine Besylate126 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 99.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,053.34
167 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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.
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
- Foothill Cardiology Medical Group IncPasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leo Ungar among 304 clinical cardiac electrophysiology physician records in California
Leo Ungar, M.D. 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 2014, is newer than 84% of them.
- NPI issued2014 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2014 · median 2002 among the 261 with a school on file
- Record last updated2022 · 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.
All 304 in California → Every provider in Pasadena → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Mayer Rashtian, M.D.Pasadena, CA 911051104876002
- Paveljit Bindra, MDPasadena, CA 911061376531053
- William Discepolo, M.D.Pasadena, CA 911071932308137
- William Huang, M.D.Glendale, CA 912031144457029
- Jesus Vazquez, M.D.Arcadia, CA 910071891841144
- Amir Hedayati-Rad, M.D.Glendale, CA 912041861410029
- Xiushi Liu, M.D.Arcadia, CA 910061710925904
- John McKenzie, M.D.Glendale, CA 912041366422685
Common questions
What is Leo Ungar, M.D.'s NPI number?
Leo Ungar, M.D.'s National Provider Identifier (NPI) is 1851702088, issued on May 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Leo Ungar, M.D. located?
The NPPES record lists a practice address at 625 S Fair Oaks Ave Ste 215, Pasadena, CA, 91105. Phone: (626) 793-4130. Providers update this record themselves, so call before visiting.
How can I verify Leo Ungar, M.D.'s license?
NPPES lists California license number A139457, 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 Leo Ungar, M.D. prescribe under Medicare Part D?
In 2024, Leo Ungar, M.D. had 2,360 Medicare Part D claims for 496 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
What is Leo Ungar, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.