William Craig, MD
NPI 1831258599 · Family Medicine Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Craig, MD is a Family Medicine Physician provider in Riverside, CA (NPI 1831258599).
Provider details
- NPI number
- 1831258599
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G69530 (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 · 103 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 516 | 274 |
| Lisinopril | 289 | 143 |
| Amlodipine Besylate | 234 | 116 |
| Losartan Potassium | 230 | 100 |
| Levothyroxine Sodium | 227 | 96 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 220 | 71 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2021-12-01
Frequently asked questions
- What is William Craig's NPI number?
- William Craig's National Provider Identifier (NPI) is 1831258599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Craig's specialty?
- William Craig is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Craig located?
- William Craig's practice location on file with NPPES is 10800 Magnolia Ave, Riverside, CA 92505-3043.
- What is William Craig's phone number?
- The practice phone number listed in the NPPES registry for William Craig is (909) 353-2000.
- Does William Craig accept Medicare?
- William Craig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Craig's NPI active?
- Yes — William Craig's NPI (1831258599) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.