NICHOLAS HERZIK
NPI 1740921931
Emergency Medicine in Los Angeles, CA
About Nicholas Herzik NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NICHOLAS HERZIK (NPI 1740921931) is an individual emergency medicine provider in Los Angeles, California, licensed in California (A189910) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Bishop, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Nicholas Herzik 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.
Medicare Billing Reassignments
3Medicare enrollment records show Nicholas Herzik reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Whittier, CA 90602
- Reassigned Medicare billing, California enrollment
- 121 clinicians in this Medicare group
Riverside, CA 92501
- Reassigned Medicare billing, California enrollment
- 2,323 clinicians in this Medicare group
Bishop, CA 93514
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1922198712 (California)
- 131 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
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.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
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 Nicholas Herzik's NPI number?
The NPI number for Nicholas Herzik is 1740921931. It was assigned to this individual provider in the NPPES registry on April 5, 2022.
Where is Nicholas Herzik located?
Nicholas Herzik practices at 2051 Marengo St, Los Angeles, CA 90033. The listed phone number is (323) 409-1000.
What is Nicholas Herzik's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nicholas Herzik enrolled in Medicare?
Yes. Nicholas Herzik 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 Nicholas Herzik's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Herzik reassigns Medicare benefits to 3 organizations: Intercommunity Emergency Medical Group (Whittier, CA), Cep America - California (Riverside, CA) and Northern Inyo Healthcare District (Bishop, 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 Nicholas Herzik'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 Nicholas Herzik was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Nicholas Herzik · NPI 1740921931
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 5, 2022.
## Identity
- **NPI:** 1740921931 (Entity type: Individual)
- **Enumerated:** April 5, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A189910 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2051 MARENGO ST, Los Angeles, CA 90033-1352
- **Phone:** (323) 409-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Intercommunity Emergency Medical Group (NPI 1871535286, Whittier, CA); Cep America - California (NPI 1386750578, Riverside, CA); Northern Inyo Healthcare District (NPI 1669798815, Bishop, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1740921931) · Data from the CMS NPPES public registry.