Richard Lasslo, MD
NPI 1467526780 · Internal Medicine Physician · Vacaville, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Lasslo, MD is a Internal Medicine Physician provider in Vacaville, CA (NPI 1467526780).
Provider details
- NPI number
- 1467526780
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A81021 (CA)
Specialties & taxonomies
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 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 419 | 144 |
| Levothyroxine Sodium | 262 | 72 |
| Atenolol | 194 | 61 |
| Lisinopril | 181 | 67 |
| Fluticasone Propionate | 177 | 59 |
| Pantoprazole Sodium | 157 | 59 |
| Amlodipine Besylate | 148 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-20
- Last updated
- 2021-12-13
Frequently asked questions
- What is Richard Lasslo's NPI number?
- Richard Lasslo's National Provider Identifier (NPI) is 1467526780, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Lasslo's specialty?
- Richard Lasslo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Lasslo located?
- Richard Lasslo's practice location on file with NPPES is 1 Quality Dr, Vacaville, CA 95688-9494.
- What is Richard Lasslo's phone number?
- The practice phone number listed in the NPPES registry for Richard Lasslo is (707) 453-5000.
- Does Richard Lasslo accept Medicare?
- Richard Lasslo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Lasslo's NPI active?
- Yes — Richard Lasslo's NPI (1467526780) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.