Marie Waterhouse, MD
Pediatric Emergency Medicine (Emergency Medicine) Physician · Los Angeles, CA
Marie Waterhouse, MD is a pediatric emergency medicine (emergency medicine) physician with a practice address in Los Angeles, California, and NPI 1417103177, issued on Aug 13, 2008. Check the license (California A103920, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marie Waterhouse
- Credential
- MD
- Primary taxonomy
- Pediatric Emergency Medicine (Emergency Medicine) Physician 207PP0204X
- License number
- A103920 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4650 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 361-2109
- Enumerated
- Aug 13, 2008
- Record last updated
- Aug 13, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120410000034); accepts Medicare assignment
- Medical or professional school
- Washington College Of Physicians And Surgeons, 2005
- Entity
- Type 1 · individual
8 nearest pediatric emergency medicine (emergency medicine) physician records → All 78 in California → Look up another NPI →
Also registered at 4650 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hisham Abdel-Azim, MDPediatric Hematology & Oncology Physician1114018694
- Ashraf Abou-Zamzam, MDPediatric Critical Care Medicine Physician1457442931
- Karineh Aboulian, MDPediatrics Physician1275774325
- Ahmed AbuhamadStudent in an Organized Health Care Education/Training Program1386478915
- Joanna Aceto, D.D.S.Pediatric Dentistry1033522578
- Etai Adam, M.D.Pediatrics Physician1578811998
Verify Marie Waterhouse in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Childrens Hospital Los Angeles Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marie Waterhouse among 78 pediatric emergency medicine (emergency medicine) physician records in California
Marie Waterhouse, MD is one of 78 pediatric emergency medicine (emergency medicine) physician records with a practice address in California. 47% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 41% of them.
- NPI issued2008 · 41% of these records are older, 51% newer
- In a Medicare fileYes · 47% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated2005 · median 2010 among the 24 with a school on file
- Record last updated2008 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PP0204X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Emergency Medicine (Emergency Medicine) Physician providers in California
There are 78 pediatric emergency medicine (emergency medicine) physician records in California.
All 78 in California → Every provider in Los Angeles → Pediatric Emergency Medicine (Emergency Medicine) Physician nationwide →
The 8 pediatric emergency medicine (emergency medicine) physician records with the nearest ZIP codes
- Michael Bedgood, M.D.Los Angeles, CA 900271255862371
- Pradip Chaudhari, M.D.Los Angeles, CA 900271831536499
- Anna Cushing, MDLos Angeles, CA 900271245771674
- Jon Detterich, MDLos Angeles, CA 900271659518884
- Katherine Gitz, MDLos Angeles, CA 900271902250855
- Bradley Goldberg, M.D.Los Angeles, CA 900271164765244
- Robert GuglielmoLos Angeles, CA 900271407273345
- Danielle Levitt, M.D.Los Angeles, CA 900271336406974
Common questions
What is Marie Waterhouse, MD's NPI number?
Marie Waterhouse, MD's National Provider Identifier (NPI) is 1417103177, issued on Aug 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marie Waterhouse, MD located?
The NPPES record lists a practice address at 4650 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 361-2109. Providers update this record themselves, so call before visiting.
How can I verify Marie Waterhouse, MD's license?
NPPES lists California license number A103920, 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.