William Rajala, M.D.
Internal Medicine Physician · Oxnard, CA
William Rajala, M.D. is an internal medicine physician with a practice address in Oxnard, California, and NPI 1427086842, issued on Jun 28, 2006. Check the license (California G62173, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Rajala
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G62173 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2200 E Gonzales RD, Oxnard, CA 93036
- Phone
- (805) 988-8100
- Enumerated
- Jun 28, 2006
- Record last updated
- Jul 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (805) 988-9907
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2200 E Gonzales RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susan Guy, MDPsychiatry Physician1902821309
- Nabeel Hameed, M.D.Family Medicine Physician1972967271
- Emily KimPharmacist1023557782
Verify William Rajala in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G62173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average internal medicine physician in 2024
882 Medicare Part D claims for 104 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium66 claims
- Eliquis40 claims
- Escitalopram Oxalate39 claims
- Clopidogrel31 claims
- Quetiapine Fumarate30 claims
- Losartan Potassium29 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
William Rajala among 17,696 internal medicine physician records in California
William Rajala, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
44 internal medicine physician records list a practice address in Oxnard
They are 44 of the 3,211 NPPES records with a practice address in Oxnard, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Oxnard → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Victor Alcocer, M.D.Oxnard, CA 930361023171162
- Manuel BeltranOxnard, CA 930361538705462
- Christopher Brana, M.D.Oxnard, CA 930361386096345
- Paul Cisarik, MDOxnard, CA 930361952515421
- Liz Diaz-Querol, MDOxnard, CA 930361184962565
- Ming Heng, M.D.Oxnard, CA 930361780638460
- Morgan Lyons, D.O.Oxnard, CA 930361578790135
- Anuradha Maganti, M.D.Oxnard, CA 930361871521088
Common questions
What is William Rajala, M.D.'s NPI number?
William Rajala, M.D.'s National Provider Identifier (NPI) is 1427086842, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Rajala, M.D. located?
The NPPES record lists a practice address at 2200 E Gonzales RD, Oxnard, CA, 93036. Phone: (805) 988-8100. Providers update this record themselves, so call before visiting.
How can I verify William Rajala, M.D.'s license?
NPPES lists California license number G62173, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Rajala, M.D. prescribe under Medicare Part D?
In 2024, William Rajala, M.D. had 882 Medicare Part D claims for 104 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.