Leslie Harris-Buckner, MD
NPI 1235287053 · Family Medicine Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie Harris-Buckner, MD is a Family Medicine Physician provider in Fontana, CA (NPI 1235287053).
Provider details
- NPI number
- 1235287053
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A70266 (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 · 98 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 419 | 151 |
| Amlodipine Besylate | 261 | 95 |
| Losartan Potassium | 185 | 65 |
| Levothyroxine Sodium | 178 | 55 |
| Rosuvastatin Calcium | 174 | 69 |
| Potassium Chloride | 166 | 65 |
| Atenolol | 145 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2021-12-08
Frequently asked questions
- What is Leslie Harris-Buckner's NPI number?
- Leslie Harris-Buckner's National Provider Identifier (NPI) is 1235287053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Harris-Buckner's specialty?
- Leslie Harris-Buckner is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leslie Harris-Buckner located?
- Leslie Harris-Buckner's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is Leslie Harris-Buckner's phone number?
- The practice phone number listed in the NPPES registry for Leslie Harris-Buckner is (909) 427-3910.
- Does Leslie Harris-Buckner accept Medicare?
- Leslie Harris-Buckner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leslie Harris-Buckner's NPI active?
- Yes — Leslie Harris-Buckner's NPI (1235287053) is active in the NPPES registry as of the last update on 2021-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.