NPPES file of Aug 9, 2026

Frank E. Castillo, DDS

Dentist · San Jose, CA

Frank E. Castillo, DDS is a dentist with a practice address in San Jose, California, and NPI 1972655983, issued on Jan 18, 2007. Check the license (California 31902, 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
1972655983
Name
Frank E. Castillo
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
31902 CA
Self-reported in NPPES; status is on the state search
Practice location
3118 Story Road, San Jose, CA 95127
Phone
(408) 254-8251
Enumerated
Jan 18, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(408) 254-0687
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.
Download card Updates feed

Verify Frank E. Castillo 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 31902
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

41% fewer Medicare Part D claims than the average dentist in 2024

51 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.

  1. Frank Castillo51
  2. Specialty average86

Most prescribed

  1. Amoxicillin27 claims
  2. Ibuprofen12 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.

Frank E. Castillo among 14,729 dentist records in California

Frank E. Castillo, 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 2007, is newer than 18% of them.

  • NPI issued2007 · 18% of these records are older, 58% 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).

444 dentist records list a practice address in San Jose

They are 444 of the 20,925 NPPES records with a practice address in San Jose, and 14,729 dentist records in California.

The 8 dentist records with the nearest ZIP codes

  1. Maria Ajlouny, D.D.S.San Jose, CA 951271942632203
  2. Arturo Carhuamaca Latorre, D.D.S.San Jose, CA 951271790959476
  3. Aksonin Castillo, D.D.S.San Jose, CA 951271417246398
  4. Frank Castillo, D.D.S.San Jose, CA 951271851775803
  5. Martha Iturriaga, D.D.SSan Jose, CA 951271366728123
  6. Hai Lam, DMDSan Jose, CA 951271801126586
  7. Francisca Mojica, DDSSan Jose, CA 951271407075419
  8. Hien Nguyen, D.D.S.San Jose, CA 951271669686309

Common questions

What is Frank E. Castillo, DDS's NPI number?

Frank E. Castillo, DDS's National Provider Identifier (NPI) is 1972655983, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Frank E. Castillo, DDS located?

The NPPES record lists a practice address at 3118 Story Road, San Jose, CA, 95127. Phone: (408) 254-8251. Providers update this record themselves, so call before visiting.

How can I verify Frank E. Castillo, DDS's license?

NPPES lists California license number 31902, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Frank E. Castillo, DDS prescribe under Medicare Part D?

In 2024, Frank E. Castillo, DDS had 51 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.