Doctor profile · Federal record

Dr. Mark Oseas, D.D.S.

Oral and Maxillofacial Surgery (Dentist) · Torrance, CA

  • NPI 1427082999
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3771 W 242Nd St, Suite 102
Torrance, CA 905056566
(310) 373-7773
fax (310) 373-7771

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
September 17, 2015
Specialty taxonomy
1223S0112X — NUCC code
State license (1)
California #35531

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427082999. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$142
Transactions
3
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Keystone Dental Inc. 1 $73.42
VERTEX PHARMACEUTICALS INCORPORATED 1 $38.00
Straumann USA LLC 1 $30.20

By nature of payment

Entertainment
$73
Food and Beverage
$68

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
247
Patients
191
Total drug cost
$1,183
Drug Type Claims Patients Total cost
Amoxicillin Generic 119 94 $470
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 52 44 $166
Chlorhexidine Gluconate Generic 33 32 $182
Azithromycin Generic 30 21 $237
Clindamycin Hcl Generic 13 0 $127

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Oseas's medical specialty?
Dr. Mark Oseas practices Oral and Maxillofacial Surgery (Dentist) in Torrance, CA.
Where does Dr. Mark Oseas practice?
Dr. Mark Oseas practices at 3771 W 242Nd St, Torrance, CA 905056566. Office phone: 3103737773.
What is Dr. Mark Oseas's NPI?
Dr. Mark Oseas's National Provider Identifier (NPI) is 1427082999, issued by NPPES.