Fiona Baerveldt Wertheimer, D.O.
Neonatal-Perinatal Medicine Physician · Los Angeles, CA
Fiona Baerveldt Wertheimer, D.O. is a neonatal-perinatal medicine physician with a practice address in Los Angeles, California, and NPI 1174672885, issued on Jan 10, 2007. Check the license (California 2OA10827, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Fiona Baerveldt Wertheimer
- Credential
- D.O.
- Primary taxonomy
- Neonatal-Perinatal Medicine Physician 2080N0001X
- License numbers
- 2OA10827 CA
20A10827 CA
OS10427 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2020 Zonal Ave, Los Angeles, CA 90033
- Phone
- (323) 226-3406
- Enumerated
- Jan 10, 2007
- Record last updated
- Jun 28, 2024
- Fax
- (323) 226-3440
- Medicaid ID
- 0001049-00 FL
- Entity
- Type 1 · individual
8 nearest neonatal-perinatal medicine physician records → All 871 in California → Look up another NPI →
Also registered at 2020 Zonal Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Assaad, MDInternal Medicine Physician1518267186
- Gwendolyn Doi, MSW, ASWMental Health Counselor1902080070
- Gabriel Murillo, M.D.Pediatrics Physician1336569276
- Mariasol Pena, M.D.Infectious Disease Physician1962729673
- Michael Regalado, MDPediatrics Physician1801964705
- Gustavo Rodriguez, BAMental Health Counselor1851567101
Verify Fiona Baerveldt Wertheimer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 2OA10827Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $164.87
5 payments; by number, the most common kind was food and beverage; the largest payer was Chiesi USA, Inc. The 875 providers of this specialty with any payment received $849.08 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.
Fiona Baerveldt Wertheimer among 871 neonatal-perinatal medicine physician records in California
Fiona Baerveldt Wertheimer, D.O. is one of 871 neonatal-perinatal medicine physician records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 36% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080N0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neonatal-Perinatal Medicine Physician providers in California
There are 871 neonatal-perinatal medicine physician records in California.
All 871 in California → Every provider in Los Angeles → Neonatal-Perinatal Medicine Physician nationwide →
The 8 neonatal-perinatal medicine physician records with the nearest ZIP codes
- Bimal Agrawal, M.D.Los Angeles, CA 900331932341096
- Lorayne Barton, MDLos Angeles, CA 900331578655262
- Ruby George, M.DLos Angeles, CA 900331467788265
- Soha Idriss, M.D.Los Angeles, CA 900331730251356
- Meiyun MaLos Angeles, CA 900331285896472
- Hemanandakumar Muniraman, MDLos Angeles, CA 900331396008504
- Erin Myers, MDLos Angeles, CA 900331447886445
- Shilpa Patil, M.D.Los Angeles, CA 900331144421082
Common questions
What is Fiona Baerveldt Wertheimer, D.O.'s NPI number?
Fiona Baerveldt Wertheimer, D.O.'s National Provider Identifier (NPI) is 1174672885, issued on Jan 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Fiona Baerveldt Wertheimer, D.O. located?
The NPPES record lists a practice address at 2020 Zonal Ave, Los Angeles, CA, 90033. Phone: (323) 226-3406. Providers update this record themselves, so call before visiting.
How can I verify Fiona Baerveldt Wertheimer, D.O.'s license?
NPPES lists California license number 2OA10827, 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.
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.