William Rajala, M.D.
NPI 1427086842 · Internal Medicine Physician · Oxnard, CA
Enrolled with Medicare as Order and Referring Only - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Rajala, M.D. is a Internal Medicine Physician provider in Oxnard, CA (NPI 1427086842).
Provider details
- NPI number
- 1427086842
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G62173 (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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 66 | 12 |
| Apixabanbrand: Eliquis | 40 | — |
| Escitalopram Oxalate | 39 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel | 31 | — |
| Quetiapine Fumarate | 30 | — |
| Losartan Potassium | 29 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-28
- Last updated
- 2007-07-16
Frequently asked questions
- What is William Rajala's NPI number?
- William Rajala's National Provider Identifier (NPI) is 1427086842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Rajala's specialty?
- William Rajala is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Rajala located?
- William Rajala's practice location on file with NPPES is 2200 E Gonzales Rd, Oxnard, CA 93036-0619.
- What is William Rajala's phone number?
- The practice phone number listed in the NPPES registry for William Rajala is (805) 988-8100.
- Does William Rajala accept Medicare?
- William Rajala is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Rajala's NPI active?
- Yes — William Rajala's NPI (1427086842) is active in the NPPES registry as of the last update on 2007-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.