Irving R. Tessler, MD
Pediatric Cardiology Physician · Pasadena, CA
Irving R. Tessler, MD is a pediatric cardiology physician with a practice address in Pasadena, California, and NPI 1821070681, issued on Nov 17, 2005. Check the license (California G14307, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Irving R. Tessler
- Credential
- MD
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License number
- G14307 CA
Self-reported in NPPES; status is on the state search - Practice location
- 50 Bellefontaine St, Pasadena, CA 91105
- Phone
- (626) 796-9259
- Enumerated
- Nov 17, 2005
- Record last updated
- Feb 21, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (626) 449-8560
- Medicaid ID
- 00G143070 CA
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 363 in California → Look up another NPI →
Also registered at 50 Bellefontaine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Ahdoot, MDPediatric Cardiology Physician1841272697
- Lennis Burke, MDPediatric Cardiology Physician1922080779
- Gustavo Calleros, MDFamily Medicine Physician1346358827
- Tommy Chen, M.D.Dermatology Physician1326136854
- Elizabeth Deoliveira, MDPediatric Cardiology Physician1265414833
- John Ho, M.D.Pediatric Cardiology Physician1548478977
Verify Irving R. Tessler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G14307Check 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 pediatric cardiology physician in 2024
38 Medicare Part D claims, against an average of 74 among the 518 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $38.61
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 1,156 providers of this specialty with any payment received $2,864.57 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.
Irving R. Tessler among 363 pediatric cardiology physician records in California
Irving R. Tessler, MD is one of 363 pediatric cardiology physician records with a practice address in California. 59% 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, 91% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2013 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in California
There are 363 pediatric cardiology physician records in California.
All 363 in California → Every provider in Pasadena → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Joseph Ahdoot, MDPasadena, CA 911051841272697
- Lennis Burke, MDPasadena, CA 911051922080779
- Elizabeth Deoliveira, MDPasadena, CA 911051265414833
- John Ho, M.D.Pasadena, CA 911051548478977
- Robert Loitz, MDPasadena, CA 911051225010077
- L Stephen Gordon, M.D.Arcadia, CA 910071750572020
- Georgios Hartas, M.D.Glendale, CA 912031750598025
- Timothy Casarez, MDEncino, CA 913161992782148
Common questions
What is Irving R. Tessler, MD's NPI number?
Irving R. Tessler, MD's National Provider Identifier (NPI) is 1821070681, issued on Nov 17, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Irving R. Tessler, MD located?
The NPPES record lists a practice address at 50 Bellefontaine St, Pasadena, CA, 91105. Phone: (626) 796-9259. Providers update this record themselves, so call before visiting.
How can I verify Irving R. Tessler, MD's license?
NPPES lists California license number G14307, 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 Irving R. Tessler, MD prescribe under Medicare Part D?
In 2024, Irving R. Tessler, MD had 38 Medicare Part D claims; the average among pediatric cardiology physician prescribers was 74. 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.