1. Home
  2. Directory
  3. California
  4. San Jose
  5. Dentist
  6. NPI Profile

RONALD L. O'BRIEN D.D.S.
NPI 1174673065
Dentist in San Jose, CA

Active since January 11, 2007Opted out of Medicare · through Jan 4, 2028
6023 SNELL AVE, SAN JOSE, CA 95123(408) 578-8331(408) 578-0823 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ronald L. O'brien D.d.s. NPPES

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

RONALD L. O'BRIEN D.D.S. (NPI 1174673065) is an individual dentist in San Jose, California, licensed in California (26275) and active in the NPI registry since January 2007. He has opted out of Medicare through January 4, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1174673065
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameRONALD L. O'BRIENCredential: D.D.S.
Location Address6023 SNELL AVESan Jose, CA 95123-4127
Mailing Address6023 Snell AveSan Jose, CA 95123-4127 · (408) 578-8331 · Fax (408) 578-0823
Phone(408) 578-8331
Fax(408) 578-0823
Sole ProprietorYes
Enumeration DateJanuary 11, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1174673065 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in CA · 26275
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
6023 SNELL AVE, San Jose, CA 95123
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

Ronald L. O'brien 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 January 4, 2016 through January 4, 2028.

Opt-Out Effective DateJanuary 4, 2016
Opt-Out In Effect ThroughJanuary 4, 2028Opt-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 95123 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
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
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.

DR. HUY NGOC VAN D.D.S.
Dentist (General Practice)
6023 SNELL AVE
SAN JOSE, CA 95123
Santa Clara County (408) 229-8819

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 Ronald O'brien's NPI number?

The NPI number for Ronald O'brien is 1174673065. It was assigned to this individual provider in the NPPES registry on January 11, 2007.

Where is Ronald O'brien located?

Ronald O'brien practices at 6023 Snell Ave, San Jose, CA 95123. The listed phone number is (408) 578-8331.

What is Ronald O'brien's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is Ronald O'brien enrolled in Medicare?

No. Ronald O'brien has opted out of Medicare through January 4, 2028. 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 Ronald O'brien was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.