Celso Leonardo Diaz, M.D.
Cardiovascular Disease Physician · Torrance, CA
Celso Leonardo Diaz, M.D. is a cardiovascular disease physician with a practice address in Torrance, California, and NPI 1033650478, issued on Mar 18, 2017. Check the license (California A170157, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Celso Leonardo Diaz
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- A170157 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3500 Lomita Blvd Ste 302, Torrance, CA 90505
- Phone
- (310) 257-0028
- Enumerated
- Mar 18, 2017
- Record last updated
- Aug 31, 2023
- Medicare enrollment
- Enrolled (PECOS I20230719002713); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 3500 Lomita Blvd Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marian Kaldas, M.D.Rheumatology Physician1790979698
Verify Celso Leonardo Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A170157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
991 Medicare Part D claims for 214 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Metoprolol Succinate161 claims
- Amlodipine Besylate114 claims
- Atorvastatin Calcium89 claims
- Eliquis83 claims
- Carvedilol67 claims
- Losartan Potassium58 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): 86.1 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).
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Celso Leonardo Diaz among 2,574 cardiovascular disease physician records in California
Celso Leonardo Diaz, M.D. 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 2017, is newer than 91% of them.
- NPI issued2017 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2017 · median 1999 among the 1,742 with a school on file
- Record last updated2023 · 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 Torrance → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Howard Abrams, M.D.Torrance, CA 905051275540098
- William Averill, M.D.Torrance, CA 905051225013550
- Gaurav Banka, MDTorrance, CA 905051205129731
- Brenton Bauer, M.D.Torrance, CA 905051992071211
- Eric Castleman, M.D.Torrance, CA 905051760491344
- Nadia Curran, M.D.Torrance, CA 905051639564610
- Christopher Hom, M.D.Torrance, CA 905051467890368
- Wilson Kwan, M.D.Torrance, CA 905051972958775
Common questions
What is Celso Leonardo Diaz, M.D.'s NPI number?
Celso Leonardo Diaz, M.D.'s National Provider Identifier (NPI) is 1033650478, issued on Mar 18, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Celso Leonardo Diaz, M.D. located?
The NPPES record lists a practice address at 3500 Lomita Blvd Ste 302, Torrance, CA, 90505. Phone: (310) 257-0028. Providers update this record themselves, so call before visiting.
How can I verify Celso Leonardo Diaz, M.D.'s license?
NPPES lists California license number A170157, 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 Celso Leonardo Diaz, M.D. prescribe under Medicare Part D?
In 2024, Celso Leonardo Diaz, M.D. had 991 Medicare Part D claims for 214 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Celso Leonardo Diaz, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.1 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.