DR. MARK EVAN OSEAS D.D.S.
NPI 1427082999
Dentist - Oral and Maxillofacial Surgery in Torrance, CA

Q: What is Mark Oseas's NPI number?

The NPI number for Mark Oseas is 1427082999. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Q: What is Mark Oseas's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.

Q: Is Mark Oseas enrolled in Medicare?

No. Mark Oseas has opted out of Medicare through March 3, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Mark Oseas was last updated on September 17, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 10, 2006Opted out of Medicare · through Mar 3, 2027

3771 W 242ND ST, SUITE 102, TORRANCE, CA 90505(310) 373-7773(310) 373-7771 Get Directions Write a Review

NPPES record last updated: September 17, 2015. Verified against the NPPES registry weekly; last sync: October 04, 2026.

On this page

About Dr. Mark Evan Oseas D.d.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK EVAN OSEAS D.D.S. (NPI 1427082999) is an individual oral and maxillofacial surgery provider in Torrance, California, licensed in California (35531) and active in the NPI registry since July 2006. He has opted out of Medicare through March 3, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1427082999

Entity TypeIndividualMale

Primary Taxonomy1223S0112X

Provider Legal NameDR. MARK EVAN OSEASCredential: D.D.S.

Location Address3771 W 242ND ST, SUITE 102Torrance, CA 90505-6566

Mailing Address3771 W 242nd St, Suite 102Torrance, CA 90505-6566 · (310) 373-7773 · Fax (310) 373-7771

Phone(310) 373-7773

Fax(310) 373-7771

Sole ProprietorNo

Enumeration DateJuly 10, 2006

Last NPPES UpdateSeptember 17, 2015

✔ NPI 1427082999 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · Oral and Maxillofacial SurgeryDental Providers

Taxonomy Code1223S0112X

License✔ Licensed in CA · 35531

Definition

An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.

3771 W 242ND ST, Torrance, CA 90505

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Mark Evan Oseas D.d.s. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from March 3, 2017 through March 3, 2027.

Opt-Out Effective DateMarch 3, 2017

Opt-Out In Effect ThroughMarch 3, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90505 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RAMIN NOGHREIAN, D.D.S., INC.

Dentist (Endodontics)

3771 W 242ND ST, 103
TORRANCE, CA 90505

Los Angeles County (310) 375-1200

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Oseas's NPI number?

The NPI number for Mark Oseas is 1427082999. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is Mark Oseas located?

Mark Oseas practices at 3771 W 242nd St Suite 102, Torrance, CA 90505. The listed phone number is (310) 373-7773.

What is Mark Oseas's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.

Is Mark Oseas enrolled in Medicare?

No. Mark Oseas has opted out of Medicare through March 3, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Mark Oseas was last updated on September 17, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.