NPPES file of Aug 9, 2026

Leonard Stephen Vaughan, DDS, MD

Oral and Maxillofacial Surgery (Dentist) · Foothill Ranch, CA

Leonard Stephen Vaughan, DDS, MD is an oral and maxillofacial surgery (dentist) with a practice address in Foothill Ranch, California, and NPI 1346453321, issued on May 7, 2007. Check the license (California OMS 61, 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
1346453321
Name
Leonard Stephen Vaughan
Credential
DDS, MD
Primary taxonomy
Oral and Maxillofacial Surgery (Dentist) 1223S0112X
License number
OMS 61 CA
Self-reported in NPPES; status is on the state search
Practice location
26730 Towne Centre Drive, Foothill Ranch, CA 92610
Phone
(949) 297-8880
Enumerated
May 7, 2007
Record last updated
Apr 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(949) 297-8883
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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Verify Leonard Stephen Vaughan 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 OMS 61
    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
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38% more Medicare Part D claims than the average oral and maxillofacial surgery (dentist) in 2024

562 Medicare Part D claims for 146 beneficiaries, against an average of 406 among the 5,870 providers of this specialty who prescribed in Part D. 128 claims were for opioids.

  1. Leonard Vaughan562
  2. Specialty average406

Most prescribed

  1. Chlorhexidine Gluconate137 claims
  2. Ibuprofen128 claims
  3. Amoxicillin121 claims
  4. Hydrocodone-Acetaminophen67 claims
  5. Acetaminophen-Codeine54 claims
  6. Clindamycin Hcl27 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: $20.59

1 payment: food and beverage; the largest payer was KLS-Martin L.P. The 4,075 providers of this specialty with any payment received $1,077.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Leonard Vaughan$20.59
  2. Specialty average$1,077.58

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Leonard Stephen Vaughan among 987 oral and maxillofacial surgery (dentist) records in California

Leonard Stephen Vaughan, DDS, MD is one of 987 oral and maxillofacial surgery (dentist) records with a practice address in California. 75% 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 34% of them.

  • NPI issued2007 · 34% of these records are older, 42% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2020 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223S0112X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 oral and maxillofacial surgery (dentist) records list a practice address in Foothill Ranch

They are 2 of the 169 NPPES records with a practice address in Foothill Ranch, and 987 oral and maxillofacial surgery (dentist) records in California.

The 8 oral and maxillofacial surgery (dentist) records with the nearest ZIP codes

  1. Suzin Um, D.D.S.Foothill Ranch, CA 926101548558646
  2. Vanila Godara, DDSIrvine, CA 926061548600844
  3. Daniel Hsu, DDS, MDIrvine, CA 926041467605246
  4. Jeffrey Nguyen, DDS, MDIrvine, CA 926041659699627
  5. Paul Anderson, D.D.S., M.D.Irvine, CA 926031427064963
  6. Charles Hasse, DDSIrvine, CA 926181265507222
  7. Vivian Jui, D.M.D.Irvine, CA 926181295800209
  8. Ouzhan Kalantari, DDS, MDIrvine, CA 926181932635794

Common questions

What is Leonard Stephen Vaughan, DDS, MD's NPI number?

Leonard Stephen Vaughan, DDS, MD's National Provider Identifier (NPI) is 1346453321, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Leonard Stephen Vaughan, DDS, MD located?

The NPPES record lists a practice address at 26730 Towne Centre Drive, Foothill Ranch, CA, 92610. Phone: (949) 297-8880. Providers update this record themselves, so call before visiting.

How can I verify Leonard Stephen Vaughan, DDS, MD's license?

NPPES lists California license number OMS 61, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Leonard Stephen Vaughan, DDS, MD prescribe under Medicare Part D?

In 2024, Leonard Stephen Vaughan, DDS, MD had 562 Medicare Part D claims for 146 beneficiaries; the average among oral and maxillofacial surgery (dentist) prescribers was 406. 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.