Sandra Guereca, D.D.S.
General Practice Dentistry · Hayward, CA
Sandra Guereca, D.D.S. is a general practice dentistry with a practice address in Hayward, California, and NPI 1225265127, issued on Jun 17, 2009. Check the license (California 53794, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sandra Guereca
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 53794 CA
Self-reported in NPPES; status is on the state search - Practice location
- 24901 Santa Clara St, Hayward, CA 94544
- Phone
- (510) 887-6835
- Enumerated
- Jun 17, 2009
- Record last updated
- Nov 16, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (510) 887-2872
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Verify Sandra Guereca in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 53794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average general practice dentistry in 2024
23 Medicare Part D claims for 17 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.
Industry payments in 2024: $76.30
1 payment: food and beverage; the largest payer was Align Technology, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Sandra Guereca among 17,852 general practice dentistry records in California
Sandra Guereca, D.D.S. 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 2009, is newer than 65% of them.
- NPI issued2009 · 65% of these records are older, 32% 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 updated2009 · 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).
66 general practice dentistry records list a practice address in Hayward
They are 66 of the 3,993 NPPES records with a practice address in Hayward, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Hayward → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Navpreet Arora, DDSHayward, CA 945441275765869
- Mary Debbie Carag, DDSHayward, CA 945441336279843
- Rosalyn Fontabla, D.M.DHayward, CA 945441992805766
- Shazia Iqbal, DDSHayward, CA 945441083821938
- Maria Lilibeth Jose, D.D.S.Hayward, CA 945441790770592
- Asres Kaffl, DDSHayward, CA 945441245309277
- Cong Liu, DDSHayward, CA 945441730456476
- Dolly Mercado, DDSHayward, CA 945441639295793
Common questions
What is Sandra Guereca, D.D.S.'s NPI number?
Sandra Guereca, D.D.S.'s National Provider Identifier (NPI) is 1225265127, issued on Jun 17, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Sandra Guereca, D.D.S. located?
The NPPES record lists a practice address at 24901 Santa Clara St, Hayward, CA, 94544. Phone: (510) 887-6835. Providers update this record themselves, so call before visiting.
How can I verify Sandra Guereca, D.D.S.'s license?
NPPES lists California license number 53794, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sandra Guereca, D.D.S. prescribe under Medicare Part D?
In 2024, Sandra Guereca, D.D.S. had 23 Medicare Part D claims for 17 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.