John Best
NPI 1871955476 · Neurology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Best is a Neurology Physician provider in San Francisco, CA (NPI 1871955476).
Provider details
- NPI number
- 1871955476
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 211 | 71 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 106 | 42 |
| Escitalopram Oxalate | 78 | 24 |
| Trazodone Hcl | 62 | 17 |
| Levetiracetam | 47 | 15 |
| Duloxetine Hcl | 37 | — |
| Memantine Hcl | 36 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-23
- Last updated
- 2024-08-07
- Certified
- 2024-08-07
Frequently asked questions
- What is John Best's NPI number?
- John Best's National Provider Identifier (NPI) is 1871955476, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Best's specialty?
- John Best is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is John Best located?
- John Best's practice location on file with NPPES is 450 6th Ave Fl 3, San Francisco, CA 94118-3010.
- What is John Best's phone number?
- The practice phone number listed in the NPPES registry for John Best is (415) 833-4555.
- Does John Best accept Medicare?
- John Best is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Best's NPI active?
- Yes — John Best's NPI (1871955476) is active in the NPPES registry as of the last update on 2024-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.