Lonnie Bristow, M.D.
NPI 1871510529 · Internal Medicine Physician · Walnut Creek, CA
Lonnie Bristow, M.D. is a Internal Medicine Physician provider in Walnut Creek, CA (NPI 1871510529).
Provider details
- NPI number
- 1871510529
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G4843 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Lonnie Bristow's NPI number?
- Lonnie Bristow's National Provider Identifier (NPI) is 1871510529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lonnie Bristow's specialty?
- Lonnie Bristow is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lonnie Bristow located?
- Lonnie Bristow's practice location on file with NPPES is 3324 Ptarmigan Dr, Walnut Creek, CA 94595-3173.
- What is Lonnie Bristow's phone number?
- The practice phone number listed in the NPPES registry for Lonnie Bristow is (925) 933-2733.
- Is Lonnie Bristow's NPI active?
- Yes — Lonnie Bristow's NPI (1871510529) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.