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MARGARITA SANTIAGO MARTINEZ MD
NPI 1447605407
Emergency Medicine in Los Angeles, CA

Active since April 27, 2016PECOS EnrolledAccepts Medicare Assignment
92.21/100
CMS Quality Rating
1200 N STATE ST, ROOM 1018, LOS ANGELES, CA 90089(323) 226-6937(323) 226-8101 Get Directions Write a Review

NPPES record last updated: June 27, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 27, 2025, May 6, 2019, Apr 19, 2018 (3 updates tracked since 2018).

About Margarita Santiago Martinez Md NPPES

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

MARGARITA SANTIAGO MARTINEZ MD (NPI 1447605407) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A142723) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and is a graduate of Michigan State University College Of Human Medicine (2014).

NPPES Registry Identity

NPI1447605407
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameMARGARITA SANTIAGO MARTINEZCredential: MD
Location Address1200 N STATE ST, ROOM 1018Los Angeles, CA 90089-1001
Mailing Address21800 Avalon Blvd Unit 218Carson, CA 90745-3350 · (310) 650-9207
Phone(323) 226-6937
Fax(323) 226-8101
Sole ProprietorNo
Medical School CMSMichigan State University College Of Human MedicineGraduated 2014
Enumeration DateApril 27, 2016
Last NPPES UpdateJune 27, 20253 updates tracked since enumeration
✔ NPI 1447605407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A142723
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.
1200 N STATE ST, Los Angeles, CA 90089
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Margarita Santiago Martinez Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880981539
PECOS Enrollment IDI20180521002202
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.

Areas of Expertise CMS Part B claims 4

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.
215 services209 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.
133 services129 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.
50 services50 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.
25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90089 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

92.21/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.07
Improvement Activities40

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.

DR. EISHA ANNE CHRISTIAN MD
Neurological Surgery
1200 N STATE ST, SUITE 3300
LOS ANGELES, CA 90089
Los Angeles County (323) 226-7421
LAURA MARIA VELEZ TURIZO MD
Student in an Organized Health Care Education/Training Program
1200 N STATE ST
LOS ANGELES, CA 90089
Los Angeles County (323) 409-7053
DR. CASSIDY BENDER MD
Student in an Organized Health Care Education/Training Program
1200 N STATE ST
LOS ANGELES, CA 90089
Los Angeles County (626) 825-4601
ARGEREY STAPAKIS
Student in an Organized Health Care Education/Training Program
1200 N STATE ST
LOS ANGELES, CA 90089
Los Angeles County (323) 409-5707
ANH-THO ANTOINETTE THI NGUYEN
Student in an Organized Health Care Education/Training Program
1200 N STATE ST
LOS ANGELES, CA 90089
Los Angeles County (714) 309-6525
JESSICA HONG
Student in an Organized Health Care Education/Training Program
1200 N STATE ST, CT-A7D
LOS ANGELES, CA 90089
Los Angeles County (323) 226-7556
JOOYEON KIM
Student in an Organized Health Care Education/Training Program
1200 N STATE ST
LOS ANGELES, CA 90089
Los Angeles County (323) 341-3128
MELISSA GRACE MYO MD
Obstetrics & Gynecology
1200 N STATE ST
LOS ANGELES, CA 90089
Los Angeles County (323) 409-6240

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 Margarita Santiago Martinez's NPI number?

The NPI number for Margarita Santiago Martinez is 1447605407. It was assigned to this individual provider in the NPPES registry on April 27, 2016.

Where is Margarita Santiago Martinez located?

Margarita Santiago Martinez practices at 1200 N State St Room 1018, Los Angeles, CA 90089. The listed phone number is (323) 226-6937.

What is Margarita Santiago Martinez's specialty?

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

Is Margarita Santiago Martinez enrolled in Medicare?

Yes. Margarita Santiago Martinez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Margarita Santiago Martinez was last updated on June 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.