Nancy J. Barr, MD
Anatomic Pathology & Clinical Pathology Physician · Los Angeles, CA
Nancy J. Barr, MD is an anatomic pathology & clinical pathology physician with a practice address in Los Angeles, California, and NPI 1902812878, issued on Jul 31, 2006. Check the license (California G52555, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nancy J. Barr
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- G52555 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 San Pablo St, Los Angeles, CA 90033
- Phone
- (323) 442-2582
- Enumerated
- Jul 31, 2006
- Record last updated
- Oct 1, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (323) 442-2588
- Medicare enrollment
- Enrolled (PECOS I20090824000305); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1982
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Also registered at 1500 San Pablo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Abad-Santos, MDVascular & Interventional Radiology Physician1487041406
- Ali Abanobi, CRNACertified Registered Nurse Anesthetist1740756196
- Emily AbbottCardiopulmonary Physical Therapist1053116251
- Hadi Abou El Hassan, MDNeurology Physician1053995720
- Taaha Adamji, MDStudent in an Organized Health Care Education/Training Program1770414377
- Nikhil AggarwalStudent in an Organized Health Care Education/Training Program1144029596
Verify Nancy J. Barr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G52555Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average anatomic pathology & clinical pathology physician in 2024
11 Medicare Part D claims, against an average of 192 among the 401 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Temazepam11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $19.31
1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 2,607 providers of this specialty with any payment received $3,565.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Analytic Pathology Medical Group IncLa Mesa, CA
- Pacific Rim Pathology Medical CorporationSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy J. Barr among 1,554 anatomic pathology & clinical pathology physician records in California
Nancy J. Barr, MD is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 57% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1982 · median 2003 among the 891 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in California
There are 1,554 anatomic pathology & clinical pathology physician records in California.
All 1,554 in California → Every provider in Los Angeles → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Deborah Commins, MDLos Angeles, CA 900331801802772
- Adrian Correa, M.D.Los Angeles, CA 900331245245950
- Alexander Fedenko, MDLos Angeles, CA 900331558377424
- Kil Lee, M.D.Los Angeles, CA 900331508851726
- Lauren O'Brien, M.D.Los Angeles, CA 900331689608556
- Dariush Sahmedini, M.D.Los Angeles, CA 900331790771830
- Chandrika Seneviratne, M.D.Los Angeles, CA 900331083608731
- Andy Sherrod, MDLos Angeles, CA 900331104833581
Common questions
What is Nancy J. Barr, MD's NPI number?
Nancy J. Barr, MD's National Provider Identifier (NPI) is 1902812878, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nancy J. Barr, MD located?
The NPPES record lists a practice address at 1500 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-2582. Providers update this record themselves, so call before visiting.
How can I verify Nancy J. Barr, MD's license?
NPPES lists California license number G52555, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nancy J. Barr, MD prescribe under Medicare Part D?
In 2024, Nancy J. Barr, MD had 11 Medicare Part D claims; the average among anatomic pathology & clinical pathology physician prescribers was 192. Part D covers Medicare prescriptions only.
What is Nancy J. Barr, MD's MIPS final score?
The 2023 MIPS final score is 94.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.