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MARI YASUNAGA MD
NPI 1245617075
Emergency Medicine in Loma Linda, CA

Active since April 30, 2015PECOS Enrolled
11234 ANDERSON STREET, EMERGENCY MEDICINE RESIDENCY TRAINING PROGRAM, LOMA LINDA, CA 92354(909) 558-4085 Get Directions Write a Review

NPPES record last updated: July 25, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mari Yasunaga Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARI YASUNAGA MD (NPI 1245617075) is an individual emergency medicine provider in Loma Linda, California, licensed in Texas (R6509) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1245617075
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameMARI YASUNAGACredential: MD
Location Address11234 ANDERSON STREET, EMERGENCY MEDICINE RESIDENCY TRAINING PROGRAMLoma Linda, CA 92354
Mailing Address13737 Noel Rd Ste 1600Dallas, TX 75240-1374
Phone(909) 558-4085
Sole ProprietorNo
Enumeration DateApril 30, 2015
Last NPPES UpdateJuly 25, 2018
✔ NPI 1245617075 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in TX · R6509✔ Licensed in CA · A144693
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
11234 ANDERSON STREET, Loma Linda, CA 92354
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mari Yasunaga Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mari Yasunaga reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Questcare Medical Services, PLLC
1,167 mi
Nurse Practitioner
3301 MATLOCK RD
Arlington, TX 76015
  • Reassigned Medicare billing, Texas enrollment
  • 454 clinicians in this Medicare group
NPI 1497807713 (954) 939-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
86 services83 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
78 services73 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
40 services40 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
26 services26 patients
X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
14 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92354 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ABHISHEK JAY DHARAN MD
Student in an Organized Health Care Education/Training Program
11234 ANDERSON STREET, GME OFFICE WESTERLY SUITE C
LOMA LINDA, CA 92354
San Bernardino County (909) 558-6491
RACHEL ELIZABETH GELFOND DAVIDGE D.O.
Pediatrics
11234 ANDERSON STREET, LOMA LINDA UNIVERSITY HEALTH, GENERAL PEDIATRICS
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4174
DR. KRISTINA KYLE M.D.
Emergency Medicine
11234 ANDERSON STREET, LOMA LINDA UNIVERSITY HEALTH - EMERGENCY MEDICINE
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4085
DOUGLAS WANG
Internal Medicine
11234 ANDERSON STREET, GME OFFICE WESTERLY SUITE C
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4174
FARAH SHAKER ABED ABUAZZAM
Student in an Organized Health Care Education/Training Program
11234 ANDERSON STREET
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4911
DR. JOSHUA STUART MACLAUGHLAN MD
Radiology (Diagnostic Radiology)
11234 ANDERSON STREET
LOMA LINDA, CA 92354
San Bernardino County (909) 558-7814
YURI JIN
Emergency Medicine
11234 ANDERSON STREET, EMERGENCY MEDICINE
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4085
SHELDON VOGT
Student in an Organized Health Care Education/Training Program
11234 ANDERSON STREET, LOMA LINDA UNIVERSITY HEALTH-SURGERY
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2822

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mari Yasunaga's NPI number?

The NPI number for Mari Yasunaga is 1245617075. It was assigned to this individual provider in the NPPES registry on April 30, 2015.

Where is Mari Yasunaga located?

Mari Yasunaga practices at 11234 Anderson Street Emergency Medicine Residency Training Program, Loma Linda, CA 92354. The listed phone number is (909) 558-4085.

What is Mari Yasunaga's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Mari Yasunaga enrolled in Medicare?

Yes. Mari Yasunaga is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mari Yasunaga's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mari Yasunaga reassigns Medicare benefits to Questcare Medical Services, PLLC (Arlington, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mari Yasunaga's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mari Yasunaga accept?

Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Mari Yasunaga as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mari Yasunaga was last updated on July 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.