Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Marta E. Alvarez, MD

Individual provider Emergency Medicine Physician · NPI 1437262193

Marta E. Alvarez, MD practises Undersea and Hyperbaric Medicine in Redding, California. Graduated from University of Southern California Keck School of Medicine in 1993, 33 years ago. Practices with Cardinal Emergency Providers Professional Corporation, a 27-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
33
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2006
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

2175 Rosaline Ave
Redding, CA 96001-2549
Phone: (530) 245-4801
Fax: (530) 229-3703
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1100 Butte Street, Redding, CA 96001-0852 — (530) 244-5400
  • 2440 Sister Mary Columba Dr Ste 300, Red Bluff, CA 96080-4356 — (530) 529-8256

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G80196 (CA)

Record details

NPI number1437262193
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 16, 2006
Last updated in NPPESDecember 7, 2023
Certification dateDecember 7, 2023

Medicare enrollment

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

Medicare specialtyUNDERSEA AND HYPERBARIC MEDICINE
Also practisesEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Cardinal Emergency Providers Professional Corporation — 27 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 1,211 times · 99th percentile
Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients374
Services billed 1,746 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $433 17 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

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

  • Shasta Regional Medical Center Hospital · Redding, CA · listed as Shasta Regional Medical Center, LLC
  • St Elizabeth Community Hospital Hospital · Red Bluff, CA · listed as Dignity Health St Elizabeth Community Hospital
  • Mercy Medical Center Redding Hospital · Redding, CA
  • Medical Home Care Professionals Home health agency · Redding, CA
  • Mercy Home Care Home health agency · Redding, CA
  • Northstar Healthcare Services Home health agency · Sacramento, CA
  • St. Elizabeth Comm Hosp Hha Home health agency · Red Bluff, CA

Colleagues at Cardinal Emergency Providers Professional Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 27 clinicians in the practice; 12 are shown here.

Other providers in Redding