Kelly Hamamoto, PA

Medicare standing: Clear; Enrolled, allowed to bill and order, not excluded
Plans that list them: Not verified; Not the same as out of network.
Offices: 3

Offices

3 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Kelly Hamamoto’s office to ask if they take your plan before you enroll.

Original Medicare doctor bills

$5,562

Medicare paid this office $5,562 for 48 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

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Largest Original Medicare bills

Short return visit (20+ min)	21	$1,608	$70

Who their Medicare patients are

48 Original Medicare patients in 2024. Average age 77 · Women 63% · Health risk score 0.76. At or below the middle of the specialty; the typical physician assistant clinician is at 1.31.

Conditions among them: High blood pressure 58% · Coronary heart disease 25%.

The office billed $19,182, Medicare allowed $6,779 and paid $5,562; for 61 services of 11 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Money from drug and device companies

$143 in 2025

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Industry payments by year

2025	2	2	None	$143
2024	1	1	None	$136

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

Madrigal Pharmaceuticals	Rezdiffra	$125	1 payment Meals for Rezdiffra · 2025-04-17 · $125
CooperSurgical	Paragard T 380a	$18	1 payment Meals for Paragard T 380a · 2025-06-03 · $18

See all 2 published payments

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Every published payment

CooperSurgical	Meals · 2025-06-03	Paragard T 380a	$18
Madrigal Pharmaceuticals	Meals · 2025-04-17	Rezdiffra	$125

See earlier years (2024)

2024: $136

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Payments by company in 2024

Neurocrine Biosciences	Ingrezza	$136	1 payment Meals for Ingrezza · 2024-07-18 · $136

Professional record

NPI: 1427828052
Licence: CA 63852
Group: Sutter Bay Medical Foundation
Video visits: Lists video visits
Gender: Female

More record details

Sole proprietor: Yes
Taxonomy: Physician assistant (363A00000X)
Mailing address: 370 Distel Cir, Los Altos, CA, 94022
NPI first listed: 2024-01-04
NPI last updated: 2025-10-07
NPI record certified: 2025-10-07

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