NPPES file of Aug 9, 2026

Therese L. O'Brien, D.D.S.

General Practice Dentistry · Sacramento, CA

Therese L. O'Brien, D.D.S. is a general practice dentistry with a practice address in Sacramento, California, and NPI 1578656146, issued on Oct 2, 2006. Check the license (California 40384, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578656146
Name
Therese L. O'Brien
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
40384 CA
Self-reported in NPPES; status is on the state search
Practice location
2409 L St, Sacramento, CA 95816
Phone
(916) 447-3600
Enumerated
Oct 2, 2006
Record last updated
Sep 7, 2023
Fax
(916) 447-3668
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2409 L St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Garry Barone, D.D.S.General Practice Dentistry1467547380
  2. Jerome Daby, DDSDentist1699858787
  3. Douglas Gedestad, D.M.D.Dentist1780825968

Verify Therese L. O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 40384
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $70.05

2 payments; by number, the most common kind was gift; the largest payer was Ultradent Products Inc. 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.

  1. Therese O'Brien$70.05
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Therese L. O'Brien among 17,852 general practice dentistry records in California

Therese L. O'Brien, D.D.S. 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 71% 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 updated2023 · 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).

406 general practice dentistry records list a practice address in Sacramento

They are 406 of the 33,083 NPPES records with a practice address in Sacramento, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Ashkan Alizadeh, D.D.S.Sacramento, CA 958161215045117
  2. Garry Barone, D.D.S.Sacramento, CA 958161467547380
  3. Christopher Cantrell, D.M.D.Sacramento, CA 958161730287038
  4. Mary Corazon Salve Cuevas, DMDSacramento, CA 958161780771725
  5. Robert Daby, D.D.S.Sacramento, CA 958161942292693
  6. Pamela Ditomasso, DMDSacramento, CA 958161124020565
  7. David Fair, DDSSacramento, CA 958161891890307
  8. David Feder, DDSSacramento, CA 958161619050481

Common questions

What is Therese L. O'Brien, D.D.S.'s NPI number?

Therese L. O'Brien, D.D.S.'s National Provider Identifier (NPI) is 1578656146, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Therese L. O'Brien, D.D.S. located?

The NPPES record lists a practice address at 2409 L St, Sacramento, CA, 95816. Phone: (916) 447-3600. Providers update this record themselves, so call before visiting.

How can I verify Therese L. O'Brien, D.D.S.'s license?

NPPES lists California license number 40384, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.