NPPES file of Aug 9, 2026

Watson A. Desa, MD

Interventional Cardiology Physician · Los Alamitos, CA

Watson A. Desa, MD is an interventional cardiology physician with a practice address in Los Alamitos, California, and NPI 1235185620, issued on May 26, 2006. Check the license (California A32717, 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
1235185620
Name
Watson A. Desa
Credential
MD
Primary taxonomy
Interventional Cardiology Physician 207RI0011X
License number
A32717 CA
Self-reported in NPPES; status is on the state search
Practice location
3851 Katella Ave Ste 305, Los Alamitos, CA 90720
Phone
(562) 594-6080
Enumerated
May 26, 2006
Record last updated
Apr 13, 2023
Fax
(562) 594-6030
Medicare enrollment
Enrolled (PECOS I20060905000562); 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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Verify Watson A. Desa in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A32717
    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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86% fewer Medicare Part D claims than the average interventional cardiology physician in 2024

459 Medicare Part D claims for 49 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Watson Desa459
  2. Specialty average3,179

Most prescribed

  1. Losartan Potassium60 claims
  2. Atorvastatin Calcium36 claims
  3. Metoprolol Succinate35 claims
  4. Potassium Chloride33 claims
  5. Furosemide30 claims
  6. Digoxin25 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: $10.69

2 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). 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.

  1. Watson Desa$10.69
  2. Specialty average$7,062.29

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Watson A. Desa among 632 interventional cardiology physician records in California

Watson A. Desa, MD 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 52% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated1973 · median 2001 among the 526 with a school on file
  • Record last updated2023 · 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.

The 8 interventional cardiology physician records with the nearest ZIP codes

  1. Robert Lee, M.D.Los Alamitos, CA 907201861684201
  2. Omid Vahdat, M.D.Los Alamitos, CA 907201033164330
  3. Bruce Vannatta, MDLos Alamitos, CA 907201629074877
  4. Chengalroyan Raghunathan, MDParamount, CA 907231407904089
  5. Travis Desa, MDLakewood, CA 907121902298219
  6. Jamal Hussain, MDLakewood, CA 907121922031806
  7. Peyman Naji, M.D.Lakewood, CA 907121720215429
  8. Morgan Chen, MDHarbor City, CA 907101053488072

Common questions

What is Watson A. Desa, MD's NPI number?

Watson A. Desa, MD's National Provider Identifier (NPI) is 1235185620, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Watson A. Desa, MD located?

The NPPES record lists a practice address at 3851 Katella Ave Ste 305, Los Alamitos, CA, 90720. Phone: (562) 594-6080. Providers update this record themselves, so call before visiting.

How can I verify Watson A. Desa, MD's license?

NPPES lists California license number A32717, 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 Watson A. Desa, MD prescribe under Medicare Part D?

In 2024, Watson A. Desa, MD had 459 Medicare Part D claims for 49 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.