Maria Cynthia Sinio Lopez, M.D.
Family Medicine Physician · Los Angeles, CA
Maria Cynthia Sinio Lopez, M.D. is a family medicine physician with a practice address in Los Angeles, California, and NPI 1205888922, issued on May 17, 2006. Check the license (California G77794, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maria Cynthia Sinio Lopez
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- G77794 CA
ME123184 FL
Self-reported in NPPES; status is on the state search - Practice location
- 5823 York Blvd, Los Angeles, CA 90042
- Phone
- (323) 255-1575
- Enumerated
- May 17, 2006
- Record last updated
- Jan 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (323) 254-2158
- Medicaid ID
- 015020600 FL
- Medicare enrollment
- Enrolled (PECOS I20060208000753); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 5823 York Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cynthia Zuniga, M.D.Family Medicine Physician1932165354
Verify Maria Cynthia Sinio Lopez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average family medicine physician in 2024
2,725 Medicare Part D claims for 293 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 27 claims were for opioids.
Most prescribed
- Atorvastatin Calcium227 claims
- Metformin Hcl195 claims
- Lisinopril132 claims
- Amlodipine Besylate110 claims
- Losartan Potassium100 claims
- Levothyroxine Sodium86 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.
Industry payments in 2024: $377.01
18 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Family Care Specialists Medical CorporationLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Cynthia Sinio Lopez among 17,133 family medicine physician records in California
Maria Cynthia Sinio Lopez, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1992 · median 2005 among the 10,652 with a school on file
- Record last updated2017 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
829 family medicine physician records list a practice address in Los Angeles
They are 829 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Los Angeles → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jose Dalprat, D.O.Los Angeles, CA 900421013299627
- John Diep, M.D.Los Angeles, CA 900421851308282
- Janel Gracia, MDLos Angeles, CA 900421619591989
- Ana Hernandez Schneider, MDLos Angeles, CA 900421588770531
- Jonathan Kang, D.O.Los Angeles, CA 900421659829380
- Christopher Lau, M.D.Los Angeles, CA 900421548365968
- Armando Pacheco, M.D.Los Angeles, CA 900421336198605
- Christian PerezLos Angeles, CA 900421174100911
Common questions
What is Maria Cynthia Sinio Lopez, M.D.'s NPI number?
Maria Cynthia Sinio Lopez, M.D.'s National Provider Identifier (NPI) is 1205888922, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria Cynthia Sinio Lopez, M.D. located?
The NPPES record lists a practice address at 5823 York Blvd, Los Angeles, CA, 90042. Phone: (323) 255-1575. Providers update this record themselves, so call before visiting.
How can I verify Maria Cynthia Sinio Lopez, M.D.'s license?
NPPES lists California license number G77794, 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 Maria Cynthia Sinio Lopez, M.D. prescribe under Medicare Part D?
In 2024, Maria Cynthia Sinio Lopez, M.D. had 2,725 Medicare Part D claims for 293 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.