Dr. Fiona Baerveldt Wertheimer, DO

  • Los Angeles, CA
  • Neonatologist
NPI1174672885
Publications
5
Hospital affiliations
1
Industry payments
$465
Insurance carriers
5
State licenses
3
Practice address
2051 Marengo St, Room C2K100, Los Angeles, CA 90033
Practice phone
Call (323) 226-2800
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Los Angeles General Medical Center

Hospital · Los Angeles, California

See all 1 affiliations

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Dr. Fiona Baerveldt Wertheimer is a neonatologist in Los Angeles, California

Dr. Wertheimer practices at Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.

Dr. Wertheimer's NPI, 1174672885, was assigned on January 10, 2007. Dr. Wertheimer graduated from Heritage College of Osteopathic Medicine in 2004. Dr. Wertheimer holds California license 2OA10827.

NPI and contact details
NPI enumeration date
January 10, 2007
NPI status
Active
Practice phone
(323) 226-2800
Professional email
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Personal email
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Mobile number
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Sex
Female
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Fiona Baerveldt Wertheimer practices at Los Angeles General Medical Center in Los Angeles, California

Dr. Wertheimer's primary practice is Los Angeles General Medical Center, at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 226-2800.

Source: Dmand AI Affiliation Data

Dr. Fiona Baerveldt Wertheimer is affiliated with 1 site of care

Dr. Wertheimer's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles. Dr. Wertheimer's employer is on file too: a hospital.

See Dr. Wertheimer's affiliation in Dmand AI

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Fiona Baerveldt Wertheimer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wertheimer practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Los Angeles General Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Wertheimer practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across County of Los Angeles and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Fiona Baerveldt Wertheimer is one of 780 neonatologists in California

Neonatal-perinatal medicine is Dr. Wertheimer's primary specialty in the NPI Registry, under taxonomy code 2080N0001X. Dr. Wertheimer is board certified in neonatal-perinatal medicine by the American Board of Pediatrics. Dmand AI has Dr. Wertheimer's licenses on file in 3 states: California, Florida and Ohio.

Specialties and state licenses

  • Neonatal-perinatal medicine, CaliforniaPrimaryLicense 2OA10827 · 2009 to 2026 · taxonomy 2080N0001X
  • Florida licenseLicense OS10427 · 2008 to 2010
  • Ohio license2004 to 2005

Neonatologists near Dr. Wertheimer

Counts of neonatologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Fiona Baerveldt Wertheimer's patients have a median age of 30

Across all payers, Dmand AI patient panel data puts Dr. Wertheimer's median patient age at 30, with 94% women.

Dr. Wertheimer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 30

Patient panel by sex, all payers

  • Women94%
  • Men6%

Source: Dmand AI Patient Panel Data

Dr. Fiona Baerveldt Wertheimer has 5 publications on record

Dmand AI links 5 papers to Dr. Wertheimer, published from 2016 to 2020. 2016 was the busiest year, with 2. The most frequent topics are Infant, Premature, Enterocolitis, Necrotizing and Infant, Premature, Diseases. Dr. Wertheimer's most frequent co-authors are Manoj A. Biniwale, MD, Victoria Ninon Olivia Niklas, MD and David H. Adamkin, MD.

Papers5
Years published2016 to 2020

Dr. Wertheimer's papers by year, 2016 to 2020

Topics Dr. Wertheimer writes about most

  • Infant, Premature
  • Enterocolitis, Necrotizing
  • Infant, Premature, Diseases

Dr. Wertheimer's most frequent co-authors

Recent publications by Dr. Wertheimer

See all 5 publications and co-authors

See who Dr. Wertheimer researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wertheimer works with, so you can find a warm path to the right neonatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Fiona Baerveldt Wertheimer received $465 in industry payments from 2019 to 2025

CMS Open Payments shows 11 general payments to Dr. Wertheimer from 3 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 86% of the total. Chiesi USA, Inc. paid the most, $327.

General payments to Dr. Wertheimer by program year, 2019 to 2025

General payments to Dr. Wertheimer by kind, 2019 to 2025

$465in total
  • Food and beverage$39986%
  • Education$6514%

Companies that paid Dr. Wertheimer the most, 2019 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Wertheimer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Fiona Baerveldt Wertheimer graduated from Heritage College of Osteopathic Medicine

Dr. Wertheimer graduated from Heritage College of Osteopathic Medicine in 2004.

  1. Medical schoolHeritage College of Osteopathic Medicine
  2. Board certified in neonatal-perinatal medicineAmerican Board of Pediatrics
  3. Board certified in pediatricsAmerican Board of Pediatrics

Source: Dmand AI Professional Profile Data

Dr. Fiona Baerveldt Wertheimer accepts plans from 5 insurance carriers

Dr. Wertheimer is in network with 5 carriers, including Aetna, LA Care and United Healthcare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • Aetna
  • LA Care
  • United Healthcare
  • Molina
  • NV State Medicaid

Plan types Dr. Wertheimer accepts, by number of carriers

  1. Medicare3
  2. HMO2
  3. Medicaid2
  4. PPO2
  5. EPO1
  6. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Fiona Baerveldt Wertheimer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Fiona Baerveldt Wertheimer

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Fiona Baerveldt Wertheimer's NPI number?

Dr. Fiona Baerveldt Wertheimer's NPI number is 1174672885. It was assigned on January 10, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Fiona Baerveldt Wertheimer?

Dr. Fiona Baerveldt Wertheimer is a neonatologist in Los Angeles, California. The primary specialty in the NPI Registry is Neonatal-Perinatal Medicine Physician (taxonomy code 2080N0001X).

Where does Dr. Fiona Baerveldt Wertheimer practice?

Dr. Wertheimer practices at 2051 Marengo St, Room C2K100, Los Angeles, CA 90033. Dr. Wertheimer's primary practice is Los Angeles General Medical Center in Los Angeles, California, part of County of Los Angeles.

What is Dr. Fiona Baerveldt Wertheimer's office phone number?

The practice phone on file for Dr. Wertheimer is (323) 226-2800.

What is Dr. Fiona Baerveldt Wertheimer's medical license number?

Dr. Wertheimer holds California license 2OA10827, one of the licenses on file in 3 states.

Which states has Dr. Fiona Baerveldt Wertheimer been licensed in?

Dmand AI has state licenses on file for Dr. Wertheimer in California (2009 to 2026), Florida (2008 to 2010) and Ohio (2004 to 2005).

Which hospitals is Dr. Fiona Baerveldt Wertheimer affiliated with?

Dr. Wertheimer practices at Los Angeles General Medical Center in Los Angeles, California.

Is Dr. Fiona Baerveldt Wertheimer board certified?

Yes. Dr. Wertheimer is board certified in neonatal-perinatal medicine by the American Board of Pediatrics.

Where did Dr. Fiona Baerveldt Wertheimer go to medical school?

Dr. Wertheimer graduated from Heritage College of Osteopathic Medicine in 2004.

Has Dr. Fiona Baerveldt Wertheimer received payments from drug or device companies?

CMS Open Payments shows $465 in general payments to Dr. Wertheimer from 3 companies from 2019 to 2025. The largest total came from Chiesi USA, Inc.

Show 4 more questionsShow fewer questions

How long has Dr. Fiona Baerveldt Wertheimer been practicing?

Dr. Wertheimer graduated from medical school in 2004, 22 years ago.

Does Dr. Fiona Baerveldt Wertheimer do research?

Dmand AI links 5 publications to Dr. Wertheimer, published from 2016 to 2020.

Who does Dr. Fiona Baerveldt Wertheimer publish with?

Dr. Wertheimer's most frequent co-authors are Manoj A. Biniwale, MD (2 shared papers), Victoria Ninon Olivia Niklas, MD (2 shared papers) and David H. Adamkin, MD (1 shared paper).

What insurance does Dr. Fiona Baerveldt Wertheimer accept?

Dr. Wertheimer is in network with 5 carriers, including Aetna, LA Care and United Healthcare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

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