NPPES file of Aug 9, 2026

Nihal De Silva, MD

Behavioral Neurology & Neuropsychiatry Physician · San Diego, CA

Nihal De Silva, MD is a behavioral neurology & neuropsychiatry physician with a practice address in San Diego, California, and NPI 1003834789, issued on Jul 18, 2006. Check the license (California C135933, 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
1003834789
Name
Nihal De Silva
Credential
MD
Primary taxonomy
Behavioral Neurology & Neuropsychiatry Physician 2084B0040X
License numbers
C135933 CA
29446 NJ
Self-reported in NPPES; status is on the state search
Practice location
3525 Del Mar Heights Road, San Diego, CA 92130
Phone
(973) 563-6220
Enumerated
Jul 18, 2006
Record last updated
Sep 4, 2019 (not updated in 7 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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Verify Nihal De Silva in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C135933
    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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About as many Medicare Part D claims as the average behavioral neurology & neuropsychiatry physician in 2024

821 Medicare Part D claims for 75 beneficiaries, against an average of 823 among the 148 providers of this specialty who prescribed in Part D.

  1. Nihal De Silva821
  2. Specialty average823

Most prescribed

  1. Trazodone Hcl105 claims
  2. Olanzapine69 claims
  3. Paroxetine Hcl69 claims
  4. Clonazepam64 claims
  5. Fluoxetine Hcl55 claims
  6. Risperidone53 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.

Nihal De Silva among 35 behavioral neurology & neuropsychiatry physician records in California

Nihal De Silva, MD is one of 35 behavioral neurology & neuropsychiatry physician records with a practice address in California. 74% 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, 77% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 54% of these records are
  • Record last updated2019 · 31% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084B0040X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Behavioral Neurology & Neuropsychiatry Physician providers in California

There are 35 behavioral neurology & neuropsychiatry physician records in California.

The 8 behavioral neurology & neuropsychiatry physician records with the nearest ZIP codes

  1. Collins Liu, MDSan Diego, CA 921301851547459
  2. Gabriel Leger, MD CMSan Diego, CA 921211720367899
  3. Oluseyi Awodele, M.D, M.SCarlsbad, CA 920091235572983
  4. Peter Wagner, M.D.Rancho Mirage, CA 922701962403774
  5. Zeeruk Iqbal, MDMoreno Valley, CA 925551417792227
  6. Monte BuschsbaumLaguna Beach, CA 926511861904401
  7. Michael Frazier, M.D.Westminster, CA 926831225396591
  8. Brian Hitt, M.D., PH.D.Irvine, CA 926971225449796

Common questions

What is Nihal De Silva, MD's NPI number?

Nihal De Silva, MD's National Provider Identifier (NPI) is 1003834789, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nihal De Silva, MD located?

The NPPES record lists a practice address at 3525 Del Mar Heights Road, San Diego, CA, 92130. Phone: (973) 563-6220. Providers update this record themselves, so call before visiting.

How can I verify Nihal De Silva, MD's license?

NPPES lists California license number C135933, 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 Nihal De Silva, MD prescribe under Medicare Part D?

In 2024, Nihal De Silva, MD had 821 Medicare Part D claims for 75 beneficiaries; the average among behavioral neurology & neuropsychiatry physician prescribers was 823. 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.