NPPES file of Aug 9, 2026

Katharine Nicole Legaspi, DMD

Dentist · Antioch, CA

Katharine Nicole Legaspi, DMD is a dentist with a practice address in Antioch, California, and NPI 1447817416, issued on May 24, 2019. Check the license (California 103706, 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
1447817416
Name
Katharine Nicole Legaspi
Credential
DMD
Primary taxonomy
Dentist 122300000X
License number
103706 CA
Self-reported in NPPES; status is on the state search
Practice location
3379 Deer Valley RD, Antioch, CA 94531
Phone
(925) 784-4815
Enumerated
May 24, 2019
Record last updated
May 24, 2019 (not updated in 7 years: call before relying on the address or phone)
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 3379 Deer Valley RD

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

  1. Valora Legaspi, DMDGeneral Practice Dentistry1235469628

Verify Katharine Nicole Legaspi 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 103706
    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

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24% more Medicare Part D claims than the average dentist in 2024

107 Medicare Part D claims for 61 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Katharine Legaspi107
  2. Specialty average86

Most prescribed

  1. Chlorhexidine Gluconate39 claims
  2. Amoxicillin31 claims
  3. Amoxicillin-Clavulanate Potass15 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.

Katharine Nicole Legaspi among 14,729 dentist records in California

Katharine Nicole Legaspi, DMD is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 78% of them.

  • NPI issued2019 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2019 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

26 dentist records list a practice address in Antioch

They are 26 of the 2,184 NPPES records with a practice address in Antioch, and 14,729 dentist records in California.

The 8 dentist records with the nearest ZIP codes

  1. Ronald Corselli, D.D.S.Antioch, CA 945311780702415
  2. Timothy Kim, DMDAntioch, CA 945311609482587
  3. Rigo Martin, DDSAntioch, CA 945311598804619
  4. Robert Sheffield, DDSAntioch, CA 945311336284538
  5. Stephanie Showing, DDSAntioch, CA 945311528722865
  6. Ryan Simarro, D.M.D.Antioch, CA 945311194164756
  7. Sukhvir Singh, DMDAntioch, CA 945311780305417
  8. Richard Sobel, D.D.S.Antioch, CA 945311942286505

Common questions

What is Katharine Nicole Legaspi, DMD's NPI number?

Katharine Nicole Legaspi, DMD's National Provider Identifier (NPI) is 1447817416, issued on May 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katharine Nicole Legaspi, DMD located?

The NPPES record lists a practice address at 3379 Deer Valley RD, Antioch, CA, 94531. Phone: (925) 784-4815. Providers update this record themselves, so call before visiting.

How can I verify Katharine Nicole Legaspi, DMD's license?

NPPES lists California license number 103706, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Katharine Nicole Legaspi, DMD prescribe under Medicare Part D?

In 2024, Katharine Nicole Legaspi, DMD had 107 Medicare Part D claims for 61 beneficiaries; the average among dentist prescribers was 86. 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.