NPPES file of Aug 9, 2026

Emma Serene Barr, MD

Obstetrics & Gynecology Physician · Los Angeles, CA

Emma Serene Barr, MD is an obstetrics & gynecology physician with a practice address in Los Angeles, California, and NPI 1790424018, issued on Jun 3, 2022. Check the license (California A190951, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790424018
Name
Emma Serene Barr
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A190951 CA
Self-reported in NPPES; status is on the state search
Practice location
1720 E Cesar E Chavez Ave, Los Angeles, CA 90033
Phone
(323) 260-5781
Enumerated
Jun 3, 2022
Record last updated
Jul 2, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1720 E Cesar E Chavez Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Carrie Adase, M.S., RDNRegistered Dietitian1548610991
  2. Kinza AhmedEmergency Medicine Physician1780250894
  3. Julieta Alfonso, MDStudent in an Organized Health Care Education/Training Program1063350718
  4. Maritza Alvarado, MD PHDFamily Medicine Physician1558803999
  5. Antranig Andonian, DOStudent in an Organized Health Care Education/Training Program1487409983
  6. Austin Apramian, DOInternal Medicine Physician1598119497

Verify Emma Serene Barr in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A190951
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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85% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

24 Medicare Part D claims for 16 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Emma Barr24
  2. Specialty average165

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.

Industry payments in 2024: $16.73

1 payment: food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Emma Barr$16.73
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Emma Serene Barr among 5,088 obstetrics & gynecology physician records in California

Emma Serene Barr, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 98% of them.

  • NPI issued2022 · 98% of these records are older, under 1% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2026 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Karen GrayLos Angeles, CA 900331083769616
  2. Robert IsraelLos Angeles, CA 900331477652303
  3. Chasity Jennings-Nunez, MDLos Angeles, CA 900331245237445
  4. Ronald Johnson, MDLos Angeles, CA 900331013913722
  5. Kimberly Liggins, DNPLos Angeles, CA 900331023163656
  6. Ned Lindsay, M.D.Los Angeles, CA 900331154447910
  7. Sara Ludlow, M.D.Los Angeles, CA 900331861684250
  8. Heather Macdonald, M.D.Los Angeles, CA 900331326158619

Common questions

What is Emma Serene Barr, MD's NPI number?

Emma Serene Barr, MD's National Provider Identifier (NPI) is 1790424018, issued on Jun 3, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Emma Serene Barr, MD located?

The NPPES record lists a practice address at 1720 E Cesar E Chavez Ave, Los Angeles, CA, 90033. Phone: (323) 260-5781. Providers update this record themselves, so call before visiting.

How can I verify Emma Serene Barr, MD's license?

NPPES lists California license number A190951, 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 Emma Serene Barr, MD prescribe under Medicare Part D?

In 2024, Emma Serene Barr, MD had 24 Medicare Part D claims for 16 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

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.