William Guthrie, MD
NPI 1588127344 · Addiction Medicine (Family Medicine) Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Addiction Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Guthrie, MD is a Addiction Medicine (Family Medicine) Physician provider in Loma Linda, CA (NPI 1588127344).
Provider details
- NPI number
- 1588127344
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A176986 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 25828 Redlands Blvd Ste 103Redlands, CA 92373-8451Phone: (909) 558-6856
Registry dates
- Enumerated
- 2019-04-09
- Last updated
- 2023-08-31
- Certified
- 2023-08-31
Frequently asked questions
- What is William Guthrie's NPI number?
- William Guthrie's National Provider Identifier (NPI) is 1588127344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Guthrie's specialty?
- William Guthrie is listed in the NPPES registry with a primary specialty of Addiction Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Guthrie located?
- William Guthrie's practice location on file with NPPES is 25333 Barton Rd, Loma Linda, CA 92350-0210.
- What is William Guthrie's phone number?
- The practice phone number listed in the NPPES registry for William Guthrie is (909) 558-6641.
- Does William Guthrie accept Medicare?
- William Guthrie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Guthrie's NPI active?
- Yes — William Guthrie's NPI (1588127344) is active in the NPPES registry as of the last update on 2023-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.