NPPES file of Aug 9, 2026

Alexa Lynn Desilva, PA-C

Family Medicine Physician · Rancho Santa Margarita, CA

Alexa Lynn Desilva, PA-C is a family medicine physician with a practice address in Rancho Santa Margarita, California, and NPI 1023630753, issued on May 15, 2020. Check the license (California PA58108, 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
1023630753
Name
Alexa Lynn Desilva
Credential
PA-C
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
PA58108 CA
Self-reported in NPPES; status is on the state search
Practice location
29809 Santa Margarita Pkwy, Rancho Santa Margarita, CA 92688
Phone
(949) 290-0410
Enumerated
May 15, 2020
Record last updated
May 15, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 29809 Santa Margarita Pkwy

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

  1. Natalia Bilan, MDFamily Medicine Physician1376644377
  2. Peter Desilva, MDFamily Medicine Physician1316045636

Verify Alexa Lynn Desilva in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license PA58108
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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81% fewer Medicare Part D claims than the average family medicine physician in 2024

678 Medicare Part D claims for 160 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Alexa Desilva678
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium79 claims
  2. Losartan Potassium31 claims
  3. Levothyroxine Sodium30 claims
  4. Rosuvastatin Calcium28 claims
  5. Meloxicam23 claims
  6. Losartan-Hydrochlorothiazide22 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: $816.79

30 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexa Desilva$816.79
  2. Specialty average$902.55

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

Alexa Lynn Desilva among 17,133 family medicine physician records in California

Alexa Lynn Desilva, PA-C is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 88% of them.

  • NPI issued2020 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2020 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 family medicine physician records list a practice address in Rancho Santa Margarita

They are 14 of the 479 NPPES records with a practice address in Rancho Santa Margarita, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Mark Adlard, M.D.Rancho Santa Margarita, CA 926881346265766
  2. Natalia Bilan, MDRancho Santa Margarita, CA 926881376644377
  3. Mark Cianciola, MDRancho Santa Margarita, CA 926881750371035
  4. Eriel Datuin, MDRancho Santa Margarita, CA 926881487230249
  5. Peter Desilva, MDRancho Santa Margarita, CA 926881316045636
  6. John Foley, MDRancho Santa Margarita, CA 926881699235515
  7. Huy Huynh, DORancho Santa Margarita, CA 926881851975866
  8. Kenneth Kazenelson, M.D.Rancho Santa Margarita, CA 926881275539637

Common questions

What is Alexa Lynn Desilva, PA-C's NPI number?

Alexa Lynn Desilva, PA-C's National Provider Identifier (NPI) is 1023630753, issued on May 15, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Alexa Lynn Desilva, PA-C located?

The NPPES record lists a practice address at 29809 Santa Margarita Pkwy, Rancho Santa Margarita, CA, 92688. Phone: (949) 290-0410. Providers update this record themselves, so call before visiting.

How can I verify Alexa Lynn Desilva, PA-C's license?

NPPES lists California license number PA58108, 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 Alexa Lynn Desilva, PA-C prescribe under Medicare Part D?

In 2024, Alexa Lynn Desilva, PA-C had 678 Medicare Part D claims for 160 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.