William K. Park, DDS
General Practice Dentistry · Lake Forest, CA
William K. Park, DDS is a general practice dentistry with a practice address in Lake Forest, California, and NPI 1003434499, issued on Jul 11, 2020. Check the license (California 106661, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William K. Park
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 106661 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26741 Rancho Pkwy Ste 105-A, Lake Forest, CA 92630
- Phone
- (949) 716-4892
- Enumerated
- Jul 11, 2020
- Record last updated
- Jul 2, 2026
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Verify William K. Park in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 106661Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average general practice dentistry in 2024
25 Medicare Part D claims for 12 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.
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.
William K. Park among 17,852 general practice dentistry records in California
William K. Park, 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 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 11% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- 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).
35 general practice dentistry records list a practice address in Lake Forest
They are 35 of the 1,008 NPPES records with a practice address in Lake Forest, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Lake Forest → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Mandeep Bal, D.D.S.Lake Forest, CA 926301023192358
- John Brizendine, DDSLake Forest, CA 926301871573543
- Paula HambletonLake Forest, CA 926301144357500
- Gary Jones, D.D.S.Lake Forest, CA 926301013921287
- Yuji Kayahara, DDSLake Forest, CA 926301356367825
- Peter Kellen, D.D.S.Lake Forest, CA 926301609880871
- Sabineh Keramati, D.D.SLake Forest, CA 926301821130352
- Steven Kirsch, D.D.S.Lake Forest, CA 926301699789875
Common questions
What is William K. Park, DDS's NPI number?
William K. Park, DDS's National Provider Identifier (NPI) is 1003434499, issued on Jul 11, 2020. An NPI identifies a provider in billing; it is not a license.
Where is William K. Park, DDS located?
The NPPES record lists a practice address at 26741 Rancho Pkwy Ste 105-A, Lake Forest, CA, 92630. Phone: (949) 716-4892. Providers update this record themselves, so call before visiting.
How can I verify William K. Park, DDS's license?
NPPES lists California license number 106661, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William K. Park, DDS prescribe under Medicare Part D?
In 2024, William K. Park, DDS had 25 Medicare Part D claims for 12 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.