Francisco Marquez, M.D.
Internal Medicine Physician · San Marcos, CA
Francisco Marquez, M.D. is an internal medicine physician with a practice address in San Marcos, California, and NPI 1316190747, issued on Oct 29, 2008. Check the license (California A113347, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Francisco Marquez
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A113347 CA
125053806 IL
Self-reported in NPPES; status is on the state search - Practice location
- 400 Craven RD, San Marcos, CA 92078
- Phone
- (760) 510-4313
- Enumerated
- Oct 29, 2008
- Record last updated
- Oct 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101022000867); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 400 Craven RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tracy Abrams, R.N.Registered Nurse1073991261
- Eric Adiarte, M.D.Obstetrics & Gynecology Physician1902038284
- Shreya Aiyar, MDPediatrics Physician1922685981
- Najlaa Al-Jibouri, PHARM DPharmacist1447438965
- Jennifer Alexander, RCP, RRTPulmonary Function Technologist Certified Respiratory Therapist1023596442
- Marisa Alunni, M.D.Obstetrics & Gynecology Physician1710298476
Verify Francisco Marquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113347Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
7,856 Medicare Part D claims for 971 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 475 claims were for opioids.
Most prescribed
- Atorvastatin Calcium524 claims
- Lisinopril376 claims
- Amlodipine Besylate327 claims
- Losartan Potassium326 claims
- Rosuvastatin Calcium287 claims
- Hydrocodone-Acetaminophen264 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 GroupSan Marcos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Francisco Marquez among 17,696 internal medicine physician records in California
Francisco Marquez, 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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 San Marcos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Meenu Bawa, M.DSan Marcos, CA 920781154598571
- Justin Charles, MDSan Marcos, CA 920781811552771
- Lauren Clarine, D.O.San Marcos, CA 920781669738928
- Joseph Czvik, MDSan Marcos, CA 920781528084340
- Sze Hoay Ding, M.D.San Marcos, CA 920781023239035
- Kathryn Germeraad, DOSan Marcos, CA 920781649830498
- Minh Nguyen, M.D.San Marcos, CA 920781154403640
- Tyler Sprague, D.O.San Marcos, CA 920781881077428
Common questions
What is Francisco Marquez, M.D.'s NPI number?
Francisco Marquez, M.D.'s National Provider Identifier (NPI) is 1316190747, issued on Oct 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Francisco Marquez, M.D. located?
The NPPES record lists a practice address at 400 Craven RD, San Marcos, CA, 92078. Phone: (760) 510-4313. Providers update this record themselves, so call before visiting.
How can I verify Francisco Marquez, M.D.'s license?
NPPES lists California license number A113347, 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 Francisco Marquez, M.D. prescribe under Medicare Part D?
In 2024, Francisco Marquez, M.D. had 7,856 Medicare Part D claims for 971 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.