STEPHEN B TREIMAN M.D.
NPI 1942223508
Pediatrics - Pediatric Critical Care Medicine in Los Angeles, CA

Q: What is Stephen Treiman's NPI number?

The NPI number for Stephen Treiman is 1942223508. It was assigned to this individual provider in the NPPES registry on July 25, 2006.

Q: What is Stephen Treiman's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Treiman was last updated on April 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since July 25, 2006PECOS Enrolled

4867 W SUNSET BLVD FL 5, LOS ANGELES, CA 90027(323) 783-4363 Get Directions Write a Review

NPPES record last updated: April 17, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Stephen B Treiman M.d. NPPES

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

STEPHEN B TREIMAN M.D. (NPI 1942223508) is an individual pediatric critical care medicine provider in Los Angeles, California, licensed in California (A67434) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942223508

Entity TypeIndividualMale

Primary Taxonomy2080P0203X

Provider Legal NameSTEPHEN B TREIMANCredential: M.D.

Location Address4867 W SUNSET BLVD FL 5Los Angeles, CA 90027-5969

Mailing Address54701 File NumberLos Angeles, CA 90074-4701 · (909) 558-3111

Phone(323) 783-4363

Sole ProprietorNo

Enumeration DateJuly 25, 2006

Last NPPES UpdateApril 17, 2023

NPPES CertifiedApril 17, 2023

✔ NPI 1942223508 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2080P0203X

License✔ Licensed in CA · A67434

Definition

A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.

4867 W SUNSET BLVD FL 5, Los Angeles, CA 90027

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Other Identifiers 1

Medicaid00A674340CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen B Treiman M.d. 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 Stephen Treiman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group

0.1 mi

Health Maintenance Organization

4760 W SUNSET BLVD
Los Angeles, CA 90027

Reassigned Medicare billing, California enrollment
Also billed through NPI 1396287082 (California)
13,921 clinicians in this Medicare group

NPI 1134151657 (323) 783-4011

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

Other Providers at the Same Location NPPES

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

CARMEN NAVEA URBAYAN DNP, RN, CNS

Clinical Nurse Specialist (Pediatrics)

4867 W SUNSET BLVD FL 5
LOS ANGELES, CA 90027

Los Angeles County (323) 783-4617

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 Stephen Treiman's NPI number?

The NPI number for Stephen Treiman is 1942223508. It was assigned to this individual provider in the NPPES registry on July 25, 2006.

Where is Stephen Treiman located?

Stephen Treiman practices at 4867 W Sunset Blvd Fl 5, Los Angeles, CA 90027. The listed phone number is (323) 783-4363.

What is Stephen Treiman's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Stephen Treiman enrolled in Medicare?

Yes. Stephen Treiman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephen Treiman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Treiman reassigns Medicare benefits to Southern California Permanente Medical Group (Los Angeles, CA). 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 Stephen Treiman'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 Stephen Treiman was last updated on April 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.