NPPES file of Aug 9, 2026

Roger Jon Ota, DDS

Dentist · Berkeley, CA

Roger Jon Ota, DDS is a dentist with a practice address in Berkeley, California, and NPI 1205948718, issued on Aug 31, 2006. Check the license (California 34752, 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
1205948718
Name
Roger Jon Ota
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
34752 CA
Self-reported in NPPES; status is on the state search
Practice location
2020 Hearst Ave, Berkeley, CA 94709
Phone
(510) 841-0662
Enumerated
Aug 31, 2006
Record last updated
Jul 8, 2007 (not updated in 19 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 2020 Hearst Ave

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

  1. Blaine Honda, DDSDentist1295831097

Verify Roger Jon 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 34752
    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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73% fewer Medicare Part D claims than the average dentist in 2024

23 Medicare Part D claims for 20 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. Roger Ota23
  2. Specialty average86

Most prescribed

  1. Amoxicillin13 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.

Roger Jon Ota among 14,729 dentist records in California

Roger Jon Ota, DDS 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 82% 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 updated2007 · 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).

68 dentist records list a practice address in Berkeley

They are 68 of the 4,898 NPPES records with a practice address in Berkeley, and 14,729 dentist records in California.

The 8 dentist records with the nearest ZIP codes

  1. Wolfgang Boeck, DDSBerkeley, CA 947091073640140
  2. Thomas Cane, DDSBerkeley, CA 947091386771491
  3. Blaine Honda, DDSBerkeley, CA 947091295831097
  4. Brittany NgiaBerkeley, CA 947091598501926
  5. Katherine Quist, DDSBerkeley, CA 947091356470496
  6. Erwin Yeh, DDSBerkeley, CA 947091932549235
  7. Ian Zlotolow, DMDBerkeley, CA 947091750414835
  8. Lindsey Koida, DDSBerkeley, CA 947101912239567

Common questions

What is Roger Jon Ota, DDS's NPI number?

Roger Jon Ota, DDS's National Provider Identifier (NPI) is 1205948718, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Roger Jon Ota, DDS located?

The NPPES record lists a practice address at 2020 Hearst Ave, Berkeley, CA, 94709. Phone: (510) 841-0662. Providers update this record themselves, so call before visiting.

How can I verify Roger Jon Ota, DDS's license?

NPPES lists California license number 34752, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

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

In 2024, Roger Jon Ota, DDS had 23 Medicare Part D claims for 20 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.