Maria Del Rosario Penaloza, M.D.
Family Medicine Physician · Los Angeles, CA
Maria Del Rosario Penaloza, M.D. is a family medicine physician with a practice address in Los Angeles, California, and NPI 1316995921, issued on May 5, 2006. Check the license (California A63385, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maria Del Rosario Penaloza
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A63385 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5427 Whittier Blvd, Los Angeles, CA 90022
- Phone
- (323) 869-1900
- Enumerated
- May 5, 2006
- Record last updated
- Nov 28, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (323) 869-1900
- Medicaid ID
- 00A633850 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 5427 Whittier Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Aquino, FNPObstetrics & Gynecology Nurse Practitioner1558594911
- Jon AyalaMental Health Counselor1174347405
- Shahryar Balakhani, D.O.Family Medicine Physician1699052548
- Alonso Bautista, MFTIMarriage & Family Therapist1689005431
- Marivic Bautista, MDAdult Medicine Physician1760680243
- Ana Bevilacquac, CNACase Manager/Care Coordinator1316093735
Verify Maria Del Rosario Penaloza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63385Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average family medicine physician in 2024
4,748 Medicare Part D claims for 310 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.
Most prescribed
- Atorvastatin Calcium628 claims
- Amlodipine Besylate295 claims
- Losartan Potassium282 claims
- Metformin Hcl273 claims
- Ozempic196 claims
- Jardiance173 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: $29.76
1 payment: food and beverage; the largest payer was ViiV Healthcare Company. 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.
Maria Del Rosario Penaloza among 17,133 family medicine physician records in California
Maria Del Rosario Penaloza, 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 fileNo · 62% of these records are
- Record last updated2011 · 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
- Chitra BhaktaLos Angeles, CA 900221417054230
- Saira Dar, MDLos Angeles, CA 900221366412165
- Jose Delgado, MDLos Angeles, CA 900221013931179
- Goretti Garcia, MDLos Angeles, CA 900221487740619
- Beatriz Gomez-Matta, M.D.Los Angeles, CA 900221861557209
- Charles Huynh, D.O.Los Angeles, CA 900221841225885
- Kemi Price, D.O.Los Angeles, CA 900221699872762
- Ricardo Puertas, MDLos Angeles, CA 900221861573230
Common questions
What is Maria Del Rosario Penaloza, M.D.'s NPI number?
Maria Del Rosario Penaloza, M.D.'s National Provider Identifier (NPI) is 1316995921, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria Del Rosario Penaloza, M.D. located?
The NPPES record lists a practice address at 5427 Whittier Blvd, Los Angeles, CA, 90022. Phone: (323) 869-1900. Providers update this record themselves, so call before visiting.
How can I verify Maria Del Rosario Penaloza, M.D.'s license?
NPPES lists California license number A63385, 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 Del Rosario Penaloza, M.D. prescribe under Medicare Part D?
In 2024, Maria Del Rosario Penaloza, M.D. had 4,748 Medicare Part D claims for 310 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.