Genevieve Lilley Hasek, M.D.
Emergency Medicine Physician · Torrance, CA
Genevieve Lilley Hasek, M.D. is an emergency medicine physician with a practice address in Torrance, California, and NPI 1780848085, issued on Jul 15, 2008. Check the license (California A110835, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Genevieve Lilley Hasek
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- A110835 CA
MD447288 PA
Self-reported in NPPES; status is on the state search - Practice location
- 22411 Hawthorne Blvd, Torrance, CA 90505
- Phone
- (310) 784-3740
- Enumerated
- Jul 15, 2008
- Record last updated
- Feb 12, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (310) 375-1392
- Medicare enrollment
- Enrolled (PECOS I20120517000142); accepts Medicare assignment
- Medical or professional school
- Pennsylvania State University College Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 22411 Hawthorne Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Gellman, DOEmergency Medicine Physician1669493375
- Glenn Newman, M.D.Family Medicine Physician1568433274
Verify Genevieve Lilley Hasek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average emergency medicine physician in 2024
505 Medicare Part D claims for 393 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Adacel Tdap76 claims
- Cephalexin55 claims
- Doxycycline Monohydrate44 claims
- Amoxicillin-Clavulanate Potass34 claims
- Azithromycin30 claims
- Prednisone29 claims
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
- Torrance Health Association IncEl Segundo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Genevieve Lilley Hasek among 7,751 emergency medicine physician records in California
Genevieve Lilley Hasek, M.D. 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2010 · median 2011 among the 4,560 with a school on file
- Record last updated2014 · 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).
197 emergency medicine physician records list a practice address in Torrance
They are 197 of the 8,901 NPPES records with a practice address in Torrance, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Torrance → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Elisa Anhalt, MDTorrance, CA 905051194773424
- Ellen BakerTorrance, CA 905051588612477
- Michael Baker, MDTorrance, CA 905051922030238
- Darren Bedolla, MDTorrance, CA 905051114956299
- Mark Gellman, DOTorrance, CA 905051669493375
- Robert Gibbs, MDTorrance, CA 905051043326366
- Kane Kuo, M.D.Torrance, CA 905051588600993
- Brett Lorber, MDTorrance, CA 905051225148042
Common questions
What is Genevieve Lilley Hasek, M.D.'s NPI number?
Genevieve Lilley Hasek, M.D.'s National Provider Identifier (NPI) is 1780848085, issued on Jul 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Genevieve Lilley Hasek, M.D. located?
The NPPES record lists a practice address at 22411 Hawthorne Blvd, Torrance, CA, 90505. Phone: (310) 784-3740. Providers update this record themselves, so call before visiting.
How can I verify Genevieve Lilley Hasek, M.D.'s license?
NPPES lists California license number A110835, 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 Genevieve Lilley Hasek, M.D. prescribe under Medicare Part D?
In 2024, Genevieve Lilley Hasek, M.D. had 505 Medicare Part D claims for 393 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.