Sydney Ilima Ramirez, MD
Infectious Disease Physician · San Diego, CA
Sydney Ilima Ramirez, MD is an infectious disease physician with a practice address in San Diego, California, and NPI 1073045191, issued on Mar 29, 2017. Check the license (California A159271, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sydney Ilima Ramirez
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A159271 CA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr., San Diego, CA 92103
- Phone
- (619) 543-6268
- Enumerated
- Mar 29, 2017
- Record last updated
- Jun 29, 2023
- Fax
- (619) 543-6529
- Medicare enrollment
- Enrolled (PECOS I20230626001191); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 200 W Arbor Dr.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Courtney Lewis, MDHospitalist Physician1598424004
- Nathan LundquistStudent in an Organized Health Care Education/Training Program1891555785
- Sue Smith, RNCase Management Registered Nurse1760993463
Verify Sydney Ilima Ramirez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A159271Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sydney Ilima Ramirez among 1,119 infectious disease physician records in California
Sydney Ilima Ramirez, MD is one of 1,119 infectious disease 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 2017, is newer than 88% of them.
- NPI issued2017 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2003 among the 735 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in San Diego → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Saima Aslam, M.D.San Diego, CA 921031477565257
- Constance Benson, M.D.San Diego, CA 921031871541664
- Ajay Bharti, MDSan Diego, CA 921031902954910
- Sara Browne, M.DSan Diego, CA 921031275571176
- Joshua Fierer, M.D.San Diego, CA 921031871525584
- Theodoros Katsivas, MDSan Diego, CA 921031679526164
- William Mathews, M.D.San Diego, CA 921031194773259
- Kalpana Natrajan, M.D.San Diego, CA 921031770686834
Common questions
What is Sydney Ilima Ramirez, MD's NPI number?
Sydney Ilima Ramirez, MD's National Provider Identifier (NPI) is 1073045191, issued on Mar 29, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Sydney Ilima Ramirez, MD located?
The NPPES record lists a practice address at 200 W Arbor Dr., San Diego, CA, 92103. Phone: (619) 543-6268. Providers update this record themselves, so call before visiting.
How can I verify Sydney Ilima Ramirez, MD's license?
NPPES lists California license number A159271, 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.
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.