1. Home
  2. Directory
  3. California
  4. Los Angeles
  5. Psychiatry Neurology
  6. NPI Profile

BARRY I. LUDWIG, M.D. INC.
NPI 1124447040
Psychiatry & Neurology - Neurology in Los Angeles, CA

Active since April 08, 2014
100 UCLA MEDICAL PLZ, 425, LOS ANGELES, CA 90095(310) 794-1500(310) 794-1517 Get Directions Write a Review

NPPES record last updated: April 8, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Barry I. Ludwig, M.d. Inc. NPPES

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

BARRY I. LUDWIG, M.D. INC. (NPI 1124447040) is a healthcare organization registered as a neurology in Los Angeles, California and active in the NPI registry since April 2014. The organization lists Patricia Magdalena Herrarte, Head Biller, as its authorized official.

NPPES Registry Identity

NPI1124447040
Entity TypeOrganization
Primary Taxonomy2084N0400X
Legal Business NameBARRY I. LUDWIG, M.D. INC.
Location Address100 UCLA MEDICAL PLZ, 425Los Angeles, CA 90095-1381
Mailing Address100 Ucla Medical Plz, 425Los Angeles, CA 90095-1381 · (310) 794-1500 · Fax (310) 794-1517
Phone(310) 794-1500
Fax(310) 794-1517
Organization SubpartNo
Authorized OfficialPatricia Magdalena HerrarteHead Biller · (310) 794-1500
Enumeration DateApril 8, 2014
✔ NPI 1124447040 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
100 UCLA MEDICAL PLZ, Los Angeles, CA 90095
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Barry I. Ludwig, M.d. Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Barry I. Ludwig, M.D. Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Barry Ludwig, MD
Neurology
NPI 1457379836
2811 WILSHIRE BLVD SUITE 508
Santa Monica, CA 90403
(424) 387-4001
✔ PECOS✔ Accepts Medicare2.5 mi

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

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 Barry I. Ludwig, M.D. Inc.'s NPI number?

The NPI number for Barry I. Ludwig, M.D. Inc. is 1124447040. It was assigned to this organization in the NPPES registry on April 8, 2014.

Where is Barry I. Ludwig, M.D. Inc. located?

Barry I. Ludwig, M.D. Inc. is located at 100 Ucla Medical Plz 425, Los Angeles, CA 90095. The listed phone number is (310) 794-1500.

What is Barry I. Ludwig, M.D. Inc.'s specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Barry I. Ludwig, M.D. Inc. enrolled in Medicare?

Yes. Barry I. Ludwig, M.D. Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Barry I. Ludwig, M.D. Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Neurology) reassigns their Medicare billing to Barry I. Ludwig, M.D. Inc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Barry I. Ludwig, M.D. Inc. was last updated on April 8, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.