Alejandra Marcela Marquez Loza, MD
Neurology Physician · Sacramento, CA
Alejandra Marcela Marquez Loza, MD is a neurology physician with a practice address in Sacramento, California, and NPI 1154881266, issued on Mar 23, 2019. Check the license (California A-193620, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alejandra Marcela Marquez Loza
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A-193620 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4860 Y St Ste 3700, Sacramento, CA 95817
- Phone
- (916) 734-6285
- Enumerated
- Mar 23, 2019
- Record last updated
- Aug 13, 2024
- Medicare enrollment
- Enrolled (PECOS I20240913001833); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 4860 Y St Ste 3700
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alejandra Marcela Marquez Loza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A-193620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average neurology physician in 2024
17 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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
- Regents OF The Univ OF CAPlacerville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alejandra Marcela Marquez Loza among 2,339 neurology physician records in California
Alejandra Marcela Marquez Loza, MD is one of 2,339 neurology 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 2019, is newer than 88% of them.
- NPI issued2019 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2019 · median 2006 among the 1,628 with a school on file
- Record last updated2024 · 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 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Sacramento → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Steven Brass, MDSacramento, CA 958171548250848
- Lawrence Fung, M.D.Sacramento, CA 958171407837164
- Fredric Gorin, M.D.Sacramento, CA 958171629052220
- Shawn Kile, M.D.Sacramento, CA 958171831170844
- Jane Kim, M.D.Sacramento, CA 958171871574772
- Suzanne Koopmans, M.D.Sacramento, CA 958171891776688
- Neuzil Lai, M.D.Sacramento, CA 958171265413736
- Calandra Lindsey, D.O.Sacramento, CA 958171245211184
Common questions
What is Alejandra Marcela Marquez Loza, MD's NPI number?
Alejandra Marcela Marquez Loza, MD's National Provider Identifier (NPI) is 1154881266, issued on Mar 23, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Alejandra Marcela Marquez Loza, MD located?
The NPPES record lists a practice address at 4860 Y St Ste 3700, Sacramento, CA, 95817. Phone: (916) 734-6285. Providers update this record themselves, so call before visiting.
How can I verify Alejandra Marcela Marquez Loza, MD's license?
NPPES lists California license number A-193620, 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 Alejandra Marcela Marquez Loza, MD prescribe under Medicare Part D?
In 2024, Alejandra Marcela Marquez Loza, MD had 17 Medicare Part D claims; the average among neurology physician prescribers was 1,370. 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.