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DR. MARISSA ZOBRIST M.D.
NPI 1033407382
Emergency Medicine in Los Angeles, CA

Active since July 20, 2011PECOS EnrolledAccepts Medicare Assignment
1200 N STATE ST RM 1060H, LOS ANGELES, CA 90033(323) 226-2622 Get Directions Write a Review

NPPES record last updated: May 26, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Marissa Zobrist M.d. NPPES

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

DR. MARISSA ZOBRIST M.D. (NPI 1033407382) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A123446) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2011).

NPPES Registry Identity

NPI1033407382
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. MARISSA ZOBRISTCredential: M.D.
Location Address1200 N STATE ST RM 1060HLos Angeles, CA 90033-1029
Mailing Address1200 N State St, Room 1060hLos Angeles, CA 90033-1029
Phone(323) 226-2622
Sole ProprietorYes
Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 2011
Enumeration DateJuly 20, 2011
Last NPPES UpdateMay 26, 2016
✔ NPI 1033407382 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A123446
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1200 N STATE ST RM 1060H, Los Angeles, CA 90033
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Other Names 1

Former Name (1)Dr. Marissa Camilon

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Marissa Zobrist M.d. 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 ID8820215221
PECOS Enrollment IDI20140807002691
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 Reassignments

5

Medicare enrollment records show Marissa Zobrist reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cep America-California
0.7 mi
Emergency Medicine
1720 E CESAR E CHAVEZ AVE
Los Angeles, CA 90033
  • Reassigned Medicare billing, California enrollment
  • 1,204 clinicians in this Medicare group
NPI 1831040823 (323) 268-5000
Providence Saint Johns Medical Foundation
16 mi
Specialist
2121 SANTA MONICA BLVD
Santa Monica, CA 90404
  • Reassigned Medicare billing, California enrollment
  • 461 clinicians in this Medicare group
NPI 1770093734 (310) 582-7312
Saint Johns Emergency Medicine Specialists Inc A Medical Group
16 mi
Emergency Medicine
2121 SANTA MONICA BLVD
Santa Monica, CA 90404
  • Reassigned Medicare billing, California enrollment
  • 30 clinicians in this Medicare group
NPI 1609888940 (310) 829-5511
Providence Facey Medical Foundation
28 mi
Urgent Care
14550 SOLEDAD CANYON RD
Santa Clarita, CA 91387
  • Reassigned Medicare billing, California enrollment
  • 684 clinicians in this Medicare group
NPI 1922651561 (818) 837-5559
Central Coast Emergency Physicians
176 mi
Emergency Medical Services
1100 LAS TABLAS RD
Templeton, CA 93465
  • Reassigned Medicare billing, California enrollment
  • 41 clinicians in this Medicare group
NPI 1972535557 (805) 434-3500

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 8

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.

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.
559 services393 patients
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.
315 services306 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.
108 services105 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.
50 services47 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
22 services22 patients
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 87635
This is a lab test that detects the presence of COVID-19 in your body. It uses a technique to amplify the virus's genetic material, either DNA or RNA, making it easier to identify. A positive result indicates an active infection.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90033 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.

Other Providers at the Same Location NPPES 2

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

EUGENE PARK M.D.
Emergency Medicine
1200 N STATE ST RM 1060H, LAC-USC MEDICAL CENTER
LOS ANGELES, CA 90033
Los Angeles County (323) 226-2828
DAVID HOFFMAN D.O.
Emergency Medicine
1200 N STATE ST RM 1060H
LOS ANGELES, CA 90033
Los Angeles County (323) 226-7744

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 Marissa Zobrist's NPI number?

The NPI number for Marissa Zobrist is 1033407382. It was assigned to this individual provider in the NPPES registry on July 20, 2011. The provider is also known as Dr. Marissa Camilon.

Where is Marissa Zobrist located?

Marissa Zobrist practices at 1200 N State St Rm 1060H, Los Angeles, CA 90033. The listed phone number is (323) 226-2622.

What is Marissa Zobrist's specialty?

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

Is Marissa Zobrist enrolled in Medicare?

Yes. Marissa Zobrist 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.

Which organizations bill Medicare for Marissa Zobrist's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Zobrist reassigns Medicare benefits to 5 organizations: Cep America-California (Los Angeles, CA), Providence Saint Johns Medical Foundation (Santa Monica, CA), Saint Johns Emergency Medicine Specialists Inc A Medical Group (Santa Monica, CA), Providence Facey Medical Foundation (Santa Clarita, CA) and Central Coast Emergency Physicians (Templeton, CA). Each 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 Marissa Zobrist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marissa Zobrist was last updated on May 26, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.