Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Malena A. Outhay, MD

Works at hospitals in Alameda, CA · Oakland, CA · San Jose, CA · California

Summary

Dr. Malena A. Outhay, MD is an emergency medicine doctor at 13855 E 14th St, San Leandro, CA 94578. Phone: (510) 357-6500. Accepts Medicare assignment. In 2024, Malena A. Outhay had 353 Original Medicare patients and 437 services. NPI 1710418942. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Malena A. Outhay, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Malena A. Outhay accept Medicare assignment?
Yes. Medicare's clinician data says Malena A. Outhay accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Malena A. Outhay see?
In 2024, CMS data shows 353 Original Medicare patients and 437 services for Malena A. Outhay. This counts Original Medicare only and measures volume, not quality.
What is Malena A. Outhay's NPI number?
1710418942. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Malena A. Outhay, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients353
Services billed to Medicare437
Different services or procedures29
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)223 services
  2. Emergency department visit with moderate level of medical decision making (99284)53 services
  3. Emergency department visit with low level of medical decision making (99283)52 services
  4. Critical care, first 30-74 minutes (99291)36 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)28 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol68%
  • Diabetes50%
  • Arthritis39%
  • Chronic kidney disease37%
  • Anxiety33%

Hospitals where Malena A. Outhay works

Medicare's Facility Affiliation Data lists Malena A. Outhay at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Alameda HospitalAlameda, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050211
  • Highland HospitalOakland, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050320
  • Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050038

Practice locations

Addresses where Malena A. Outhay is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Malena A. Outhay as a member of these groups (CMS data updated October 2, 2026).

  • Alameda Health System601 clinicians in the group
  • Emergency Physicians Associates San Jose PC132 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in San Leandro

Clinicians with the same Medicare primary specialty in San Leandro, CA — not a recommendation.

All emergency medicine doctors in San Leandro →

Other clinicians in Alameda Health System

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolVanderbilt University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1710418942
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians