Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alejandra Marcela Marquez Loza, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1154881266

Alejandra Marcela Marquez Loza, MD practises Neurology in Sacramento, California. Graduated from Harvard Medical School in 2019, 7 years ago. Practices with Regents of the Univ of Ca, a 1,578-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
7
Trained at
Harvard Medical School
Licensed in
CA
In the registry since
2019
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Sacramento, CA

No coordinates on file. Search this address in Google Maps

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence A-193620 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1154881266
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2019
Last updated in NPPESAugust 13, 2024
Certification dateAugust 13, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2019 (7 years in practice)
Group practice Regents Of The Univ Of Ca — 1578 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations8 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients116
Services billed 242 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Northbay Medical Center Hospital · Fairfield, CA · listed as Northbay Medical Center Pharmacy
  • University Of California Davis Medical Center Hospital · Sacramento, CA · listed as University of California, Davis Medical Center
  • Adventist Health And Rideout Hospital · Marysville, CA
  • Adventist Health Howard Memorial Hospital · Willits, CA
  • Enloe Health Hospital · Chico, CA

Colleagues at Regents of the Univ of Ca

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1578 clinicians in the practice; 12 are shown here.

Other providers in Sacramento