Louis Fontana, M.D.
NPI 1780734343 · Psychiatry Physician · Chula Vista, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Fontana, M.D. is a Psychiatry Physician provider in Chula Vista, CA (NPI 1780734343).
Provider details
- NPI number
- 1780734343
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G49072 (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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 106 | 22 |
| Risperidone | 66 | — |
| Aripiprazole | 57 | — |
| Buspirone Hcl | 53 | 13 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 48 | — |
| Olanzapine | 44 | — |
| Paroxetine Hcl | 43 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,007 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-12
- Last updated
- 2024-06-26
- Certified
- 2024-06-26
Frequently asked questions
- What is Louis Fontana's NPI number?
- Louis Fontana's National Provider Identifier (NPI) is 1780734343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Fontana's specialty?
- Louis Fontana is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Fontana located?
- Louis Fontana's practice location on file with NPPES is 678 Third Ave, Chula Vista, CA 91910-5736.
- What is Louis Fontana's phone number?
- The practice phone number listed in the NPPES registry for Louis Fontana is (909) 838-3836.
- Does Louis Fontana accept Medicare?
- Louis Fontana is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Fontana's NPI active?
- Yes — Louis Fontana's NPI (1780734343) is active in the NPPES registry as of the last update on 2024-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.