NANCY J BARR MD
NPI 1902812878
Pathology - Anatomic Pathology & Clinical Pathology in Los Angeles, CA
About Nancy J Barr Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCY J BARR MD (NPI 1902812878) is an individual anatomic pathology & clinical pathology provider in Los Angeles, California, licensed in California (G52555) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Michigan Medical School (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
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
Nancy J Barr 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.
Medicare Billing Reassignments
2Medicare enrollment records show Nancy Barr reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 21 clinicians in this Medicare group
La Mesa, CA 91942
- Reassigned Medicare billing, California enrollment
- 21 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.
Areas of Expertise CMS Part B claims 9
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.
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.
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.
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
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 Nancy Barr's NPI number?
The NPI number for Nancy Barr is 1902812878. It was assigned to this individual provider in the NPPES registry on July 31, 2006.
Where is Nancy Barr located?
Nancy Barr practices at 1500 San Pablo St, Los Angeles, CA 90033. The listed phone number is (323) 442-2582.
What is Nancy Barr's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Nancy Barr enrolled in Medicare?
Yes. Nancy Barr 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 Nancy Barr's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Barr reassigns Medicare benefits to 2 organizations: Pacific Rim Pathology Medical Corporation (San Diego, CA) and Analytic Pathology Medical Group Inc. (La Mesa, 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 Nancy Barr'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 Nancy Barr was last updated on October 1, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Nancy J Barr, MD · NPI 1902812878
Anatomic Pathology & Clinical Pathology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 31, 2006.
## Identity
- **NPI:** 1902812878 (Entity type: Individual)
- **Enumerated:** July 31, 2006
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** G52555 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 SAN PABLO ST, Los Angeles, CA 90033-5313
- **Phone:** (323) 442-2582 · **Fax:** (323) 442-2588
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Pacific Rim Pathology Medical Corporation (NPI 1922069087, San Diego, CA); Analytic Pathology Medical Group Inc. (NPI 1568431088, La Mesa, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 1982
## Record status
- **NPPES last updated:** October 1, 2007
- **Other identifiers:** Other 00G525550 (CA); Medicare UPIN H58975 (CA); Medicare PIN WG52555C (CA); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1902812878) · Data from the CMS NPPES public registry.