Louisa Hanna Ramirez, MD
Family Medicine Physician · Rancho Cucamonga, CA
Louisa Hanna Ramirez, MD is a family medicine physician with a practice address in Rancho Cucamonga, California, and NPI 1780901413, issued on Apr 20, 2010. Check the license (California A110260, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Louisa Hanna Ramirez
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A110260 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10850 Arrow Rte, Rancho Cucamonga, CA 91730
- Phone
- (310) 699-7018
- Enumerated
- Apr 20, 2010
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100924000175); 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 10850 Arrow Rte
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Louisa Hanna Ramirez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110260Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average family medicine physician in 2024
4,312 Medicare Part D claims for 1,049 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 244 claims were for opioids.
Most prescribed
- Atorvastatin Calcium289 claims
- Amlodipine Besylate208 claims
- Levothyroxine Sodium162 claims
- Hydrocodone-Acetaminophen156 claims
- Losartan Potassium140 claims
- Lisinopril138 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 GroupRancho Cucamonga, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Louisa Hanna Ramirez among 17,133 family medicine physician records in California
Louisa Hanna Ramirez, MD 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2008 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 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).
62 family medicine physician records list a practice address in Rancho Cucamonga
They are 62 of the 4,579 NPPES records with a practice address in Rancho Cucamonga, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Rancho Cucamonga → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Marc Avent, DORancho Cucamonga, CA 917301437104783
- Eldine Banquerigo, M.D.Rancho Cucamonga, CA 917301851367528
- Steven Barag, D.O.Rancho Cucamonga, CA 917301366444838
- James Brown, M.D.Rancho Cucamonga, CA 917301073597738
- Juan Cortes, DORancho Cucamonga, CA 917301760432181
- Rommie Fakhoury, MDRancho Cucamonga, CA 917301528000643
- Sandra Force-Obrowski, M.D.Rancho Cucamonga, CA 917301023034873
- Patricia Guevara-Channell, MDRancho Cucomonga, CA 917301841266392
Common questions
What is Louisa Hanna Ramirez, MD's NPI number?
Louisa Hanna Ramirez, MD's National Provider Identifier (NPI) is 1780901413, issued on Apr 20, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Louisa Hanna Ramirez, MD located?
The NPPES record lists a practice address at 10850 Arrow Rte, Rancho Cucamonga, CA, 91730. Phone: (310) 699-7018. Providers update this record themselves, so call before visiting.
How can I verify Louisa Hanna Ramirez, MD's license?
NPPES lists California license number A110260, 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 Louisa Hanna Ramirez, MD prescribe under Medicare Part D?
In 2024, Louisa Hanna Ramirez, MD had 4,312 Medicare Part D claims for 1,049 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.