Juancarlos Buller, MD
NPI 1346219557 · Sports Medicine (Family Medicine) Physician · Napa, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Juancarlos Buller, MD is a Sports Medicine (Family Medicine) Physician provider in Napa, CA (NPI 1346219557).
Provider details
- NPI number
- 1346219557
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A66601 (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
20 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 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 445 | 134 |
| Amlodipine Besylate | 245 | 70 |
| Lisinopril | 204 | 69 |
| Metformin Hclbrand: Metformin Hcl Er | 202 | 68 |
| Gabapentin | 194 | 58 |
| Levothyroxine Sodium | 146 | 38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-17
- Last updated
- 2021-09-01
- Certified
- 2021-09-01
Frequently asked questions
- What is Juancarlos Buller's NPI number?
- Juancarlos Buller's National Provider Identifier (NPI) is 1346219557, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Juancarlos Buller's specialty?
- Juancarlos Buller is listed in the NPPES registry with a primary specialty of Sports Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Juancarlos Buller located?
- Juancarlos Buller's practice location on file with NPPES is 300 Hartle Ct, Napa, CA 94559-4078.
- What is Juancarlos Buller's phone number?
- The practice phone number listed in the NPPES registry for Juancarlos Buller is (707) 254-1775.
- Does Juancarlos Buller accept Medicare?
- Juancarlos Buller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Juancarlos Buller's NPI active?
- Yes — Juancarlos Buller's NPI (1346219557) is active in the NPPES registry as of the last update on 2021-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.