Lucio Loza, M.D.
Adult Medicine Physician · Santa Ana, CA
Lucio Loza, M.D. is an adult medicine physician with a practice address in Santa Ana, California, and NPI 1134352727, issued on Aug 28, 2009. Check the license (California A103472, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lucio Loza
- Credential
- M.D.
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- A103472 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3401 S Harbor Blvd, Santa Ana, CA 92704
- Phone
- (714) 830-6695
- Enumerated
- Aug 28, 2009
- Record last updated
- Nov 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091207000224); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 3401 S Harbor Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lucio Loza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103472Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average adult medicine physician in 2024
3,442 Medicare Part D claims for 546 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 144 claims were for opioids.
Most prescribed
- Atorvastatin Calcium300 claims
- Losartan Potassium145 claims
- Amlodipine Besylate125 claims
- Lisinopril115 claims
- Levothyroxine Sodium106 claims
- Rosuvastatin Calcium101 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
- Southern California Permanente Medical GroupGarden Grove, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lucio Loza among 386 adult medicine physician records in California
Lucio Loza, M.D. is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 55% of them.
- NPI issued2009 · 55% of these records are older, 42% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2006 · median 2005 among the 187 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Santa Ana → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- J Cassidy, M.D.Santa Ana, CA 927041528132487
- Ming Chen, D.O.Santa Ana, CA 927041376749101
- Marian Bareh, M.D.Santa Ana, CA 927051518184241
- Alan Barton, M.D.Santa Ana, CA 927051831456854
- Karee Chrysovergis, FNPSanta Ana, CA 927051649805250
- Sarah Page, D.O.Santa Ana, CA 927051811332075
- Felicia Young, D.O.Santa Ana, CA 927061295898617
- Neal Schwartz, D.O.Santa Ana, CA 927011164592127
Common questions
What is Lucio Loza, M.D.'s NPI number?
Lucio Loza, M.D.'s National Provider Identifier (NPI) is 1134352727, issued on Aug 28, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Lucio Loza, M.D. located?
The NPPES record lists a practice address at 3401 S Harbor Blvd, Santa Ana, CA, 92704. Phone: (714) 830-6695. Providers update this record themselves, so call before visiting.
How can I verify Lucio Loza, M.D.'s license?
NPPES lists California license number A103472, 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 Lucio Loza, M.D. prescribe under Medicare Part D?
In 2024, Lucio Loza, M.D. had 3,442 Medicare Part D claims for 546 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.