Martha Vanzina, DDS
Dentist · Palo Alto, CA
Martha Vanzina, DDS is a dentist with a practice address in Palo Alto, California, and NPI 1902932429, issued on Feb 26, 2007. Check the license (California 49234, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Martha Vanzina
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 49234 CA
Self-reported in NPPES; status is on the state search - Practice location
- 511 Byron St, Palo Alto, CA 94301
- Phone
- (650) 323-1381
- Enumerated
- Feb 26, 2007
- Entity
- Type 1 · individual
Also registered at 511 Byron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Koi Nguyen, RDHDental Hygienist1326846437
Verify Martha Vanzina in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 49234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
38% fewer Medicare Part D claims than the average dentist in 2024
53 Medicare Part D claims for 45 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin35 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: $264.59
3 payments, mostly food and beverage; the largest payer was Dentsply Sirona Inc. The 31,974 providers of this specialty with any payment received $540.36 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.
Dentist providers in California
There are 14,729 dentist records in California.
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Common questions
What is Martha Vanzina, DDS's NPI number?
Martha Vanzina, DDS's National Provider Identifier (NPI) is 1902932429, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Martha Vanzina, DDS located?
The NPPES record lists a practice address at 511 Byron St, Palo Alto, CA, 94301. Phone: (650) 323-1381. Providers update this record themselves, so call before visiting.
How can I verify Martha Vanzina, DDS's license?
NPPES lists California license number 49234, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Martha Vanzina, DDS prescribe under Medicare Part D?
In 2024, Martha Vanzina, DDS had 53 Medicare Part D claims for 45 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.