NPPES file of Aug 9, 2026

Richard Clinton Hahn, DDS

Dentist · Aliso Viejo, CA

Richard Clinton Hahn, DDS is a dentist with a practice address in Aliso Viejo, California, and NPI 1568688372, issued on Apr 18, 2007. Check the license (California 28565, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1568688372
Name
Richard Clinton Hahn
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
28565 CA
Self-reported in NPPES; status is on the state search
Practice location
24541 Pacific Park Dr, Aliso Viejo, CA 92656
Phone
(949) 831-4193
Enumerated
Apr 18, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(949) 831-4197
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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8 nearest dentist records → All 14,729 in California → Look up another NPI →

Also registered at 24541 Pacific Park Dr

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

  1. Roland Beverly, M.D.Dermatology Physician1083687776
  2. Marian Bradford, DDSDentist1902008659
  3. Richard Caso, M.D.Interventional Cardiology Physician1407822141
  4. Daniel Haspert, M.D.Specialist1427023316
  5. Kenneth Hoang, D.C.Chiropractor1811283484
  6. Cima Mazar-Atabaki, D.M.D.Pediatric Dentistry1306075825

Verify Richard Clinton Hahn 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 28565    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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Richard Clinton Hahn among 14,729 dentist records in California

Richard Clinton Hahn, 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 not. Its NPI, issued in 2007, is newer than 18% of them.

  • NPI issued2007 · 18% of these records are older, 58% newer
  • In a Medicare fileNo · 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).

24 dentist records list a practice address in Aliso Viejo

They are 24 of the 568 NPPES records with a practice address in Aliso Viejo, and 14,729 dentist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 14,729 in California → Every provider in Aliso Viejo → Dentist nationwide →

The 8 dentist records with the nearest ZIP codes

  1. Santisree Alluri, DDSAliso Viejo, CA 926561336368091
  2. Monica Bhandari, DDSLaguna Hills, CA 926561801064050
  3. Reza Birjandi, DDSAliso Viejo, CA 926561083801336
  4. Marian Bradford, DDSAliso Viejo, CA 926561902008659
  5. Jesse Johnson, DDSAliso Viejo, CA 926561306003355
  6. Armentina Light, DDSAliso Viejo, CA 926561992848998
  7. Moni Mosharaf, D.D.S.Aliso Viejo, CA 926561184831091
  8. Nick Nguyen, DDSAliso Viejo, CA 926561649340274

Common questions

What is Richard Clinton Hahn, DDS's NPI number?

Richard Clinton Hahn, DDS's National Provider Identifier (NPI) is 1568688372, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Richard Clinton Hahn, DDS located?

The NPPES record lists a practice address at 24541 Pacific Park Dr, Aliso Viejo, CA, 92656. Phone: (949) 831-4193. Providers update this record themselves, so call before visiting.

How can I verify Richard Clinton Hahn, DDS's license?

NPPES lists California license number 28565, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.