Osvaldo Adrian Lopez, MD
Internal Medicine Physician · Temecula, CA
Osvaldo Adrian Lopez, MD is an internal medicine physician with a practice address in Temecula, California, and NPI 1649294505, issued on Jul 26, 2006. Check the license (California A061258, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Osvaldo Adrian Lopez
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A061258 CA
Self-reported in NPPES; status is on the state search - Practice location
- 41593 Winchester RD Ste 200, Temecula, CA 92590
- Phone
- (951) 219-9543
- Enumerated
- Jul 26, 2006
- Record last updated
- Dec 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20050729000539); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 41593 Winchester RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amy Leigh Fernandez, LCSWClinical Social Worker1194000851
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Verify Osvaldo Adrian Lopez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A061258Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average internal medicine physician in 2024
980 Medicare Part D claims for 343 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 26 claims were for opioids.
Most prescribed
- Cefuroxime71 claims
- Pantoprazole Sodium65 claims
- Atorvastatin Calcium37 claims
- Clopidogrel37 claims
- Eliquis37 claims
- Amlodipine Besylate36 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.
Bills Medicare through one group practice
- Grace Hospitalist Group IncWildomar, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Osvaldo Adrian Lopez among 17,696 internal medicine physician records in California
Osvaldo Adrian Lopez, MD 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 fileYes · 63% of these records are
- Graduated1995 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 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).
52 internal medicine physician records list a practice address in Temecula
They are 52 of the 4,057 NPPES records with a practice address in Temecula, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Temecula → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michael Basch, M.D.Temecula, CA 925901790889350
- Nichele Blosser, DOTemecula, CA 925901366079899
- Carl Sainten, M.D.Temecula, CA 925901902963796
- Nizar Salek, MDTemecula, CA 925901407813785
- Charles Taft, M.D.Temecula, CA 925901366409617
- Leo Zacks, M.D.Temecula, CA 925901386038578
- Syed Awais Ahmed, MDTemecula, CA 925911932858818
- Yogeshwar Chaturvedi, MDTemecula, CA 925911902929763
Common questions
What is Osvaldo Adrian Lopez, MD's NPI number?
Osvaldo Adrian Lopez, MD's National Provider Identifier (NPI) is 1649294505, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Osvaldo Adrian Lopez, MD located?
The NPPES record lists a practice address at 41593 Winchester RD Ste 200, Temecula, CA, 92590. Phone: (951) 219-9543. Providers update this record themselves, so call before visiting.
How can I verify Osvaldo Adrian Lopez, MD's license?
NPPES lists California license number A061258, 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 Osvaldo Adrian Lopez, MD prescribe under Medicare Part D?
In 2024, Osvaldo Adrian Lopez, MD had 980 Medicare Part D claims for 343 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.