Gwendolyn Cecilia Hooley, MD
Emergency Medicine Physician · Los Angeles, CA
Gwendolyn Cecilia Hooley, MD is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1558865220, issued on Mar 19, 2018. Check the license (California A178792, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gwendolyn Cecilia Hooley
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A178792 CA
Self-reported in NPPES; status is on the state search - Practice location
- 757 Westwood Plz Ste 1517, Los Angeles, CA 90095
- Phone
- (310) 825-9111
- Enumerated
- Mar 19, 2018
- Record last updated
- Jul 1, 2024
- Medicare enrollment
- Enrolled (PECOS I20221011001675); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 757 Westwood Plz Ste 1517
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gwendolyn Cecilia Hooley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178792Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average emergency medicine physician in 2024
41 Medicare Part D claims for 33 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
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).
Gwendolyn Cecilia Hooley among 7,751 emergency medicine physician records in California
Gwendolyn Cecilia Hooley, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2018 · median 2011 among the 4,560 with a school on file
- Record last updated2024 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Los Angeles → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Rebecca Bavolek, MDLos Angeles, CA 900951942407556
- Robert Casey, MDLos Angeles, CA 900951790904597
- Priscilla Hanudel, M.D.Los Angeles, CA 900951902068505
- Gregory Hendey, MDLos Angeles, CA 900951942317391
- Aliasgher Hussain, M.D.Los Angeles, CA 900951699986810
- Amy Peng, M.D.Los Angeles, CA 900951578546479
- Jason Prystowsky, MDLos Angeles, CA 900951669407391
- Robert Rodriguez, MDLos Angeles, CA 900951194769091
Common questions
What is Gwendolyn Cecilia Hooley, MD's NPI number?
Gwendolyn Cecilia Hooley, MD's National Provider Identifier (NPI) is 1558865220, issued on Mar 19, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Gwendolyn Cecilia Hooley, MD located?
The NPPES record lists a practice address at 757 Westwood Plz Ste 1517, Los Angeles, CA, 90095. Phone: (310) 825-9111. Providers update this record themselves, so call before visiting.
How can I verify Gwendolyn Cecilia Hooley, MD's license?
NPPES lists California license number A178792, 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 Gwendolyn Cecilia Hooley, MD prescribe under Medicare Part D?
In 2024, Gwendolyn Cecilia Hooley, MD had 41 Medicare Part D claims for 33 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.