NPPES file of Aug 9, 2026

Melissa Ota, DDS

General Practice Dentistry · Irvine, CA

Melissa Ota, DDS is a general practice dentistry with a practice address in Irvine, California, and NPI 1821498940, issued on Aug 26, 2014. Check the license (California 63289, 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
1821498940
Name
Melissa Ota
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
63289 CA
Self-reported in NPPES; status is on the state search
Practice location
2 Osborn St Ste 140, Irvine, CA 92604
Phone
(929) 525-2522
Enumerated
Aug 26, 2014
Record last updated
Apr 9, 2026
Medicare enrollment
Enrolled (PECOS I20260326002187); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2 Osborn St Ste 140

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

  1. Thomas Alexander, DDSDentist1962649723
  2. Craig Ota, D.D.SGeneral Practice Dentistry1154534535

Verify Melissa Ota 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 63289
    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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5% fewer Medicare Part D claims than the average general practice dentistry in 2024

79 Medicare Part D claims for 43 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Melissa Ota79
  2. Specialty average83

Most prescribed

  1. Sodium Fluoride29 claims
  2. Amoxicillin20 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.

Industry payments in 2024: $20.88

1 payment: food and beverage; the largest payer was Dentsply Sirona 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. Melissa Ota$20.88
  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.

Melissa Ota among 17,852 general practice dentistry records in California

Melissa Ota, DDS 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 2014, is newer than 76% of them.

  • NPI issued2014 · 76% of these records are older, 22% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileYes · under 1% of these records are
  • Graduated2014 · median 2009 among the 95 with a school on file
  • Record last updated2026 · 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).

178 general practice dentistry records list a practice address in Irvine

They are 178 of the 7,778 NPPES records with a practice address in Irvine, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Mohammad Amini, DDSIrvine, CA 926041033229828
  2. Xerxez Calilung, DDSIrvine, CA 926041275649600
  3. Russell Cannon, D.D.S.Irvine, CA 926041649387986
  4. Jonathan Cho, D.D.S.Irvine, CA 926041326055021
  5. Gregory Clibon, DDSIrvine, CA 926041982625141
  6. Nam Dang, DDSIrvine, CA 926041417059163
  7. Anton Degeus, DDSIrvine, CA 926041003993080
  8. Vickie Ge, DDSIrvine, CA 926041932211273

Common questions

What is Melissa Ota, DDS's NPI number?

Melissa Ota, DDS's National Provider Identifier (NPI) is 1821498940, issued on Aug 26, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Ota, DDS located?

The NPPES record lists a practice address at 2 Osborn St Ste 140, Irvine, CA, 92604. Phone: (929) 525-2522. Providers update this record themselves, so call before visiting.

How can I verify Melissa Ota, DDS's license?

NPPES lists California license number 63289, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Melissa Ota, DDS prescribe under Medicare Part D?

In 2024, Melissa Ota, DDS had 79 Medicare Part D claims for 43 beneficiaries; the average among general practice dentistry prescribers was 83. 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.