Martha G Vanzina, DDS

Offices

1 location

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Vanzina’s office at (650) 323-1381 to ask if they take your plan before you enroll.

Drugs they prescribed that Part D paid

$221

Pharmacies billed $221 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their Part D prescriptions (0 of 53) in 2024. At or below the middle of the specialty; the typical dentist clinician is at 0%.

53 generic and 0 brand-name prescriptions · $221 in drug cost · 50 antibiotic prescriptions to 42 people.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

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Largest Part D drug costs

Amoxicillin	29	$140	$4

Year by year

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Part D prescribing by year

2024	53	45	0% (0)	0%	$221
2023	58	46	None	0%	$243
2022	82	67	0% (0)	0%	$381
2021	51	40	0% (0)	None	$243
2020	38	27	0% (0)	0%	$468
2019	31	27	0% (0)	0%	$219
2018	45	29	None	None	$295
2017	37	26	0% (0)	0%	$437
2016	33	23	0% (0)	0%	$242
2015	33	24	0% (0)	0%	$174
2014	21	15	None	None	$142
2013	22	16	0% (0)	0%	$143

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 1 drug

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Part D drugs prescribed in 2023

Amoxicillin	32	$108	$3

2022: 1 drug

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Part D drugs prescribed in 2022

Amoxicillin	50	$172	$3

2021: 2 drugs

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Part D drugs prescribed in 2021

Penicillin V	13	$93	$7
Amoxicillin	24	$86	$4

2020: 1 drug

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Part D drugs prescribed in 2020

Amoxicillin	18	$75	$4

2019: 1 drug

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Part D drugs prescribed in 2019

Amoxicillin	15	$80	$5

2018: 1 drug

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Part D drugs prescribed in 2018

Amoxicillin	21	$104	$5

2017: 1 drug

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Part D drugs prescribed in 2017

Amoxicillin	14	$59	$4

2016: 1 drug

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Part D drugs prescribed in 2016

Amoxicillin	17	$82	$5

2015: 1 drug

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Part D drugs prescribed in 2015

Amoxicillin	18	$53	$3

2013: 1 drug

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Part D drugs prescribed in 2013

Amoxicillin	11	$59	$5

Money from drug and device companies

$466 in 2025

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Industry payments by year

2025	5	13	None	$466
2024	2	3	None	$265
2023	2	2	None	$38
2022	3	3	None	$88
2021	1	1	None	$23
2020	1	1	None	$14
2019	1	2	None	$56

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

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Payments by company

Align Technology	Invisalign	$322	9 payments Meals for Invisalign · 2025-09-22 · $62 Meals for Invisalign · 2025-05-14 · $1 Meals for Invisalign · 2025-05-14 · $22 Meals for Invisalign · 2025-05-13 · $30 Gift for Invisalign · 2025-05-09 · $9 Meals for Invisalign · 2025-05-09 · $21 Education for Invisalign · 2025-05-09 · $125 Meals for Invisalign · 2025-04-29 · $44 Meals for Invisalign · 2025-03-26 · $9
Patterson Companies	Solea	$45	1 payment Meals for Solea · 2025-07-29 · $45
Solventum	3m Espe Filtek Supreme Ultra Universal Restorative	$44	1 payment Meals for 3m Espe Filtek Supreme Ultra Universal Restorative · 2025-05-22 · $44
Dentsply Sirona	Tph Spectra Universal Composite Restorative Low Viscosity	$39	1 payment Meals for Tph Spectra Universal Composite Restorative Low Viscosity · 2025-04-22 · $39
Philips North America	Oral Hygieneother	$16	1 payment Meals for Oral Hygieneother · 2025-07-10 · $16

See all 13 published payments

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Every published payment

Align Technology	Meals · 2025-09-22	Invisalign	$62
Patterson Companies	Meals · 2025-07-29	Solea	$45
Philips North America	Meals · 2025-07-10	Oral Hygieneother	$16
Solventum	Meals · 2025-05-22	3m Espe Filtek Supreme Ultra Universal Restorative	$44
Align Technology	Meals · 2025-05-14	Invisalign	$1
Align Technology	Meals · 2025-05-14	Invisalign	$22
Align Technology	Meals · 2025-05-13	Invisalign	$30
Align Technology	Gift · 2025-05-09	Invisalign	$9
Align Technology	Meals · 2025-05-09	Invisalign	$21
Align Technology	Education · 2025-05-09	Invisalign	$125
Align Technology	Meals · 2025-04-29	Invisalign	$44
Dentsply Sirona	Meals · 2025-04-22	Tph Spectra Universal Composite Restorative Low Viscosity	$39
Align Technology	Meals · 2025-03-26	Invisalign	$9

See earlier years (2024, 2023, 2022, 2021, 2020, 2019)

2024: $265

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Payments by company in 2024

Dentsply Sirona	Implant Dentistry	$223	2 payments Meals for Implant Dentistry · 2024-05-22 · $139 Meals for Implant Dentistry · 2024-05-22 · $84
Align Technology	Invisalign	$42	1 payment Meals for Invisalign · 2024-03-07 · $42

2023: $38

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Payments by company in 2023

Straumann USA	None	$28	1 payment Meals · 2023-01-19 · $28
Align Technology	Invisalign	$10	1 payment Education for Invisalign · 2023-12-13 · $10

2022: $88

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Payments by company in 2022

Align Technology	Invisalign	$40	1 payment Education for Invisalign · 2022-03-31 · $40
Hu-Friedy Mfg. Co.	None	$25	1 payment Education · 2022-10-02 · $25
3m	3m Relyx	$23	1 payment Meals for 3m Relyx · 2022-08-11 · $23

2021: $23

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Payments by company in 2021

Align Technology	Invisalign	$23	1 payment Meals for Invisalign · 2021-10-04 · $23

2020: $14

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Payments by company in 2020

Kerr	Optibond Aio	$14	1 payment Meals for Optibond Aio · 2020-01-21 · $14

2019: $56

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Payments by company in 2019

3m	Vanish Sodium Flouride White Varnish	$56	2 payments Meals for Vanish Sodium Fluoride White Varnish · 2019-02-26 · $22 Meals for Vanish Sodium Flouride White Varnish · 2019-01-15 · $34

Professional record

NPI: 1902932429
Licence: CA 49234

More record details

Sole proprietor: No
Taxonomy: Federal specialty code 122300000X (122300000X)
Mailing address: 511 Byron St, Palo Alto, CA, 94301
NPI first listed: 2007-02-26
NPI last updated: 2007-07-08

This is when the NPI record was last certified, not a medical board exam.