Sarah To, DDS
General Practice Dentistry · Walnut Creek, CA
Sarah To, DDS is a general practice dentistry with a practice address in Walnut Creek, California, and NPI 1801592969, issued on Feb 1, 2023. Check the license (California DDS110767, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sarah To
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DDS110767 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1855 San Miguel Dr Ste 31, Walnut Creek, CA 94596
- Phone
- (925) 935-2700
- Enumerated
- Feb 1, 2023
- Record last updated
- Oct 19, 2025
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 1855 San Miguel Dr Ste 31
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dan Wu, DDSGeneral Practice Dentistry1881054112
Verify Sarah To in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license DDS110767Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average general practice dentistry in 2024
22 Medicare Part D claims for 15 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
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.
Sarah To among 17,852 general practice dentistry records in California
Sarah To, 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 2023, is newer than 93% of them.
- NPI issued2023 · 93% of these records are older, 5% 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 updated2025 · 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).
71 general practice dentistry records list a practice address in Walnut Creek
They are 71 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Walnut Creek → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Bret Annoni, D.D.S.Walnut Creek, CA 945961982651295
- Timothy Callahan, DDSWalnut Creek, CA 945961275633836
- Michael Carpentier, D.D.S.Walnut Creek, CA 945961568558476
- Maryam Doroudian, DDSWalnut Creek, CA 945961821018722
- Tsui Wai Eng, D.D.S.Walnut Creek, CA 945961245240845
- Grace-Mary Hume, D.D.S.Walnut Creek, CA 945961871689786
- Dwight Loder, DDSWalnut Creek, CA 945961538287784
- Mark Maher, DDSWalnut Creek, CA 945961306823539
Common questions
What is Sarah To, DDS's NPI number?
Sarah To, DDS's National Provider Identifier (NPI) is 1801592969, issued on Feb 1, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Sarah To, DDS located?
The NPPES record lists a practice address at 1855 San Miguel Dr Ste 31, Walnut Creek, CA, 94596. Phone: (925) 935-2700. Providers update this record themselves, so call before visiting.
How can I verify Sarah To, DDS's license?
NPPES lists California license number DDS110767, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sarah To, DDS prescribe under Medicare Part D?
In 2024, Sarah To, DDS had 22 Medicare Part D claims for 15 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.