Nihal De Silva, MD
NPI 1003834789 · Behavioral Neurology & Neuropsychiatry Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nihal De Silva, MD is a Behavioral Neurology & Neuropsychiatry Physician provider in San Diego, CA (NPI 1003834789).
Provider details
- NPI number
- 1003834789
- Entity type
- Individual
- Primary specialty
- Behavioral Neurology & Neuropsychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- C135933 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 105 | 19 |
| Paroxetine Hcl | 69 | 14 |
| Olanzapine | 69 | 11 |
| Clonazepam | 64 | 13 |
| Fluoxetine Hcl | 55 | — |
| Risperidone | 53 | — |
| Alprazolam | 50 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2019-09-04
Frequently asked questions
- What is Nihal De Silva's NPI number?
- Nihal De Silva's National Provider Identifier (NPI) is 1003834789, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nihal De Silva's specialty?
- Nihal De Silva is listed in the NPPES registry with a primary specialty of Behavioral Neurology & Neuropsychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Nihal De Silva located?
- Nihal De Silva's practice location on file with NPPES is 3525 Del Mar Heights Road, San Diego, CA 92130-2122.
- What is Nihal De Silva's phone number?
- The practice phone number listed in the NPPES registry for Nihal De Silva is (973) 563-6220.
- Does Nihal De Silva accept Medicare?
- Nihal De Silva is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nihal De Silva's NPI active?
- Yes — Nihal De Silva's NPI (1003834789) is active in the NPPES registry as of the last update on 2019-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.