Al Liandro Mamaril, DO
Family Medicine Physician · Merced, CA
Al Liandro Mamaril, DO is a family medicine physician with a practice address in Merced, California, and NPI 1497246342, issued on May 27, 2018. Check the license (California 20A23379, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Al Liandro Mamaril
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 20A23379 CA
OS021503 PA
OT018280 PA
Self-reported in NPPES; status is on the state search - Practice location
- 847 W Childs Ave, Merced, CA 95341
- Phone
- (724) 379-4401
- Enumerated
- May 27, 2018
- Record last updated
- Feb 19, 2025
- Medicare enrollment
- Enrolled (PECOS I20230503003229); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 847 W Childs Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Miriam Arana, PAMedical Physician Assistant1144460130
- Allison Arquero, M.D.Pediatrics Physician1528407582
- Jeannette Ayala, MDFamily Medicine Physician1477536373
- Nancy Ayala, RNRegistered Nurse1952742280
- Marcus Bernardi, DCChiropractor1679581656
- Stephanie CapellBehavior Technician1215439864
Verify Al Liandro Mamaril in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A23379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average family medicine physician in 2024
5,833 Medicare Part D claims for 368 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 37 claims were for opioids.
Most prescribed
- Atorvastatin Calcium377 claims
- Gabapentin302 claims
- Lisinopril259 claims
- Amlodipine Besylate208 claims
- Omeprazole200 claims
- Pantoprazole Sodium200 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $53.36
3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. 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 2 group practices
- Cherokee NationTahlequah, OK
- Golden Valley Health CentersMerced, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Al Liandro Mamaril among 17,133 family medicine physician records in California
Al Liandro Mamaril, DO 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 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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).
94 family medicine physician records list a practice address in Merced
They are 94 of the 2,836 NPPES records with a practice address in Merced, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Merced → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jeannette Ayala, MDMerced, CA 953411477536373
- Humberto Barragan, DOMerced, CA 953411033435300
- Simrit Dyal, MDMerced, CA 953411578192043
- Monique Godbold Sanchez, M.D.Merced, CA 953411528045317
- Richard Hsu, DOMerced, CA 953411306234232
- Felicia Jodhka, M.D.Merced, CA 953411215228820
- Karuna Kem, D.OMerced, CA 953411760699557
- Anupam Khandelwal, MDMerced, CA 953411932240710
Common questions
What is Al Liandro Mamaril, DO's NPI number?
Al Liandro Mamaril, DO's National Provider Identifier (NPI) is 1497246342, issued on May 27, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Al Liandro Mamaril, DO located?
The NPPES record lists a practice address at 847 W Childs Ave, Merced, CA, 95341. Phone: (724) 379-4401. Providers update this record themselves, so call before visiting.
How can I verify Al Liandro Mamaril, DO's license?
NPPES lists California license number 20A23379, 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 Al Liandro Mamaril, DO prescribe under Medicare Part D?
In 2024, Al Liandro Mamaril, DO had 5,833 Medicare Part D claims for 368 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Al Liandro Mamaril, DO's MIPS final score?
The 2023 MIPS final score is 78.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.