Rosa M. Reynaga, M.D.
Internal Medicine Physician · Norwalk, CA
Rosa M. Reynaga, M.D. is an internal medicine physician with a practice address in Norwalk, California, and NPI 1689611311, issued on Jun 1, 2006. Check the license (California G53875, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rosa M. Reynaga
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G53875 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12729 Pioneer Blvd, Norwalk, CA 90650
- Phone
- (562) 207-2270
- Enumerated
- Jun 1, 2006
- Record last updated
- Mar 20, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (562) 207-2279
- Medicaid ID
- 00G538750 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 12729 Pioneer Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Consuelo Cervantes, MPAPMedical Physician Assistant1699082966
- Marina Cervantes, M.D.Family Medicine Physician1811308281
- Arthur Ramos, M.D.Family Medicine Physician1699712307
Verify Rosa M. Reynaga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G53875Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average internal medicine physician in 2024
567 Medicare Part D claims for 181 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Atorvastatin Calcium81 claims
- Amlodipine Besylate44 claims
- Lisinopril38 claims
- Metformin Hcl31 claims
- Losartan Potassium25 claims
- Omeprazole25 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.
Rosa M. Reynaga among 17,696 internal medicine physician records in California
Rosa M. Reynaga, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2015 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Norwalk → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alast AhmadiNorwalk, CA 906501962088799
- Lucita Cruz, MDNorwalk, CA 906501770526477
- Raymond Flores, MDNorwalk, CA 906501316967631
- Kenneth Lee, M.D.Norwalk, CA 906501831149475
- Surekha Mishal, M.D.Norwalk, CA 906501699817221
- Hung Phan, MDNorwalk, CA 906501447505284
- Aida Salatinjants, M.D.Norwalk, CA 906501962423467
- Suzy Sedrak, MDNorwalk, CA 906501649318973
Common questions
What is Rosa M. Reynaga, M.D.'s NPI number?
Rosa M. Reynaga, M.D.'s National Provider Identifier (NPI) is 1689611311, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rosa M. Reynaga, M.D. located?
The NPPES record lists a practice address at 12729 Pioneer Blvd, Norwalk, CA, 90650. Phone: (562) 207-2270. Providers update this record themselves, so call before visiting.
How can I verify Rosa M. Reynaga, M.D.'s license?
NPPES lists California license number G53875, 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 Rosa M. Reynaga, M.D. prescribe under Medicare Part D?
In 2024, Rosa M. Reynaga, M.D. had 567 Medicare Part D claims for 181 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.