Warren J. Gerosa, DDS
General Practice Dentistry · Los Angeles, CA
Warren J. Gerosa, DDS is a general practice dentistry with a practice address in Los Angeles, California, and NPI 1326175951, issued on Feb 28, 2007. Check the license (California 33712, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Warren J. Gerosa
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 33712 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8540 S Sepulveda Blvd, Los Angeles, CA 90045
- Phone
- (310) 645-2886
- Enumerated
- Feb 28, 2007
- Record last updated
- Jul 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (310) 645-0346
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 8540 S Sepulveda Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Warren J. Gerosa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 33712Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average general practice dentistry in 2024
75 Medicare Part D claims for 39 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 11 claims were for opioids.
Most prescribed
- Arestin13 claims
- Ibuprofen11 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.
Industry payments in 2024: $149.10
15 payments; by number, the most common kind was food and beverage; the largest payer was OraPharma, a division of Bausch Health US, LLC. The 41,669 providers of this specialty with any payment received $597.01 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.
Warren J. Gerosa among 17,852 general practice dentistry records in California
Warren J. Gerosa, DDS is one of 17,852 general practice dentistry records with a practice address in California. 57% 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 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2011 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
916 general practice dentistry records list a practice address in Los Angeles
They are 916 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Los Angeles → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- David Brown, DDSLos Angeles, CA 900451326140757
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- David Fong, D.D.S.Los Angeles, CA 900451598815789
- Claire Ho, DDSLos Angeles, CA 900451215021381
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- Bashar Komoc, DDSLos Angeles, CA 900451437290897
- Bradley Matthew, D.D.SLos Angeles, CA 900451922166354
- Lida Mohaghegh Davani, D.D.SLos Angeles, CA 900451437206331
Common questions
What is Warren J. Gerosa, DDS's NPI number?
Warren J. Gerosa, DDS's National Provider Identifier (NPI) is 1326175951, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Warren J. Gerosa, DDS located?
The NPPES record lists a practice address at 8540 S Sepulveda Blvd, Los Angeles, CA, 90045. Phone: (310) 645-2886. Providers update this record themselves, so call before visiting.
How can I verify Warren J. Gerosa, DDS's license?
NPPES lists California license number 33712, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Warren J. Gerosa, DDS prescribe under Medicare Part D?
In 2024, Warren J. Gerosa, DDS had 75 Medicare Part D claims for 39 beneficiaries; the average among general practice dentistry prescribers was 83. 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.