Rosemary Santos Chequer, M.D.
Neurological Surgery Physician · Patton, CA
Rosemary Santos Chequer, M.D. is a neurological surgery physician with a practice address in Patton, California, and NPI 1821068784, issued on Jan 24, 2006. Check the license (California A55105, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rosemary Santos Chequer
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- A55105 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3102 E. Highland Avenue, Patton, CA 92369
- Phone
- (909) 425-7679
- Enumerated
- Jan 24, 2006
- Record last updated
- Mar 19, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (909) 425-6635
- Medicaid ID
- 00A551050 CA
- Medicare enrollment
- Enrolled (PECOS I20050415000875); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 929 in California → Look up another NPI →
Also registered at 3102 E. Highland Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rosemary Santos Chequer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A55105Check 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
- Department OF State HospitalsPatton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rosemary Santos Chequer among 929 neurological surgery physician records in California
Rosemary Santos Chequer, M.D. is one of 929 neurological surgery physician records with a practice address in California. 77% 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, 62% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1972 · median 2005 among the 612 with a school on file
- Record last updated2014 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in California
There are 929 neurological surgery physician records in California.
All 929 in California → Every provider in Patton → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Vladimir Cortez, DORedlands, CA 923731629230065
- Traian Cojocaru, M.D.Loma Linda, CA 923571154427524
- Achal Achrol, M.D.Loma Linda, CA 923541275783276
- Maleeha Ahmad, MD FRCSLoma Linda, CA 923541538535612
- Salman Aldakhil, MDLoma Linda, CA 923541306697883
- Daniel Dilorenzo, MD, PHDLoma Linda, CA 923541851546600
- Justin Dye, M.D.Loma Linda, CA 923541629212535
- Tarek El Ahmadieh, M.D.Loma Linda, CA 923541487066098
Common questions
What is Rosemary Santos Chequer, M.D.'s NPI number?
Rosemary Santos Chequer, M.D.'s National Provider Identifier (NPI) is 1821068784, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rosemary Santos Chequer, M.D. located?
The NPPES record lists a practice address at 3102 E. Highland Avenue, Patton, CA, 92369. Phone: (909) 425-7679. Providers update this record themselves, so call before visiting.
How can I verify Rosemary Santos Chequer, M.D.'s license?
NPPES lists California license number A55105, 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.