Mark Evan Oseas, D.D.S.
Oral and Maxillofacial Surgery (Dentist) · Torrance, CA
Mark Evan Oseas, D.D.S. is an oral and maxillofacial surgery (dentist) with a practice address in Torrance, California, and NPI 1427082999, issued on Jul 10, 2006. Check the license (California 35531, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Evan Oseas
- Credential
- D.D.S.
- Primary taxonomy
- Oral and Maxillofacial Surgery (Dentist) 1223S0112X
- License number
- 35531 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3771 W 242ND St, Torrance, CA 90505
- Phone
- (310) 373-7773
- Enumerated
- Jul 10, 2006
- Record last updated
- Sep 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (310) 373-7771
- Entity
- Type 1 · individual
8 nearest oral and maxillofacial surgery (dentist) records → All 987 in California → Look up another NPI →
Verify Mark Evan Oseas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 35531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024
240 Medicare Part D claims for 127 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 21 claims were for opioids.
Most prescribed
- Amoxicillin126 claims
- Chlorhexidine Gluconate46 claims
- Azithromycin22 claims
- Hydrocodone-Acetaminophen21 claims
- Amoxicillin-Clavulanate Potass11 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: $141.62
3 payments; by number, the most common kind was food and beverage; the largest payer was Keystone Dental Inc. The 4,075 providers of this specialty with any payment received $1,077.58 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.
Mark Evan Oseas among 987 oral and maxillofacial surgery (dentist) records in California
Mark Evan Oseas, D.D.S. is one of 987 oral and maxillofacial surgery (dentist) records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 66% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2015 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oral and Maxillofacial Surgery (Dentist) providers in California
There are 987 oral and maxillofacial surgery (dentist) records in California.
All 987 in California → Every provider in Torrance → Oral and Maxillofacial Surgery (Dentist) nationwide →
The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes
- John Brothers, D.D.S., M.D.Torrance, CA 905051760879126
- Allen Huang, D.D.S., M.D.Torrance, CA 905051518322247
- John Nguyen, DDS, MDTorrance, CA 905051821480856
- Ramtin Vahadi, DDS, MDTorrance, CA 905051285733733
- Benjamin Yagoubian, DDS, MDTorrance, CA 905051891926341
- Kyle Yamamoto, DDS, MDTorrance, CA 905051265886352
- Felix Yip, DDS, MDTorrance, CA 905051275822884
- Paul GrinTorrance, CA 905031700888278
Common questions
What is Mark Evan Oseas, D.D.S.'s NPI number?
Mark Evan Oseas, D.D.S.'s National Provider Identifier (NPI) is 1427082999, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Evan Oseas, D.D.S. located?
The NPPES record lists a practice address at 3771 W 242ND St, Torrance, CA, 90505. Phone: (310) 373-7773. Providers update this record themselves, so call before visiting.
How can I verify Mark Evan Oseas, D.D.S.'s license?
NPPES lists California license number 35531, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Evan Oseas, D.D.S. prescribe under Medicare Part D?
In 2024, Mark Evan Oseas, D.D.S. had 240 Medicare Part D claims for 127 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.