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William M Dizon, PA

Physician Assistant · Mountain View

NPI 1730461054

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 William M Dizon’s office to ask if they take your plan before you enroll.

Original Medicare doctor bills

$51,112

Medicare paid this office $51,112 for 158 people.

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

Largest Original Medicare bills
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose45$17,986None
Aspiration and/or injection of fluid from large joint79$12,173$61
Short return visit (20+ min)54$5,902$69
Repair of shoulder rotator cuff using an endoscope17$2,299$135
Injection, triamcinolone acetonide, not otherwise specified, 10 mg20$77None

Procedures Medicare counted

Procedure volume Medicare published
Lower limb (leg) arthroscopy (minimally invasive joint repair)1-10None
Upper limb (arm) arthroscopy (minimally invasive joint repair)21More than 64% of doctors who do this

Who their Medicare patients are

158 Original Medicare patients in 2024. Average age 74 · Women 58% · Also on Medicaid 7% · Health risk score 0.91. 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% · Diabetes 18% · Depression 16% · Chronic kidney disease 15% · Cancer 13% · COPD 8%.

The office billed $346,924, Medicare allowed $66,532 and paid $51,112; for 4,870 services of 37 kinds; $24,344 of it was for drugs given in the office and $26,768 for care.

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

Year by year

Original Medicare by year
20241584,870740.91$346,924$51,112
20231392,871740.86$302,301$45,497
20221581,323750.84$233,061$45,636
2021115435741.00$170,323$33,234
202093369730.94$138,410$26,346
201980433731.08$128,797$36,275
201898502730.86$144,527$29,506
201784432741.09$109,261$22,112
201681388751.01$116,851$25,134
2015104361740.93$110,271$21,268
2014106239740.89$96,624$15,975
2013106199721.06$178,556$15,445

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

See the services billed each year

2023: 6 services

Original Medicare services billed in 2023
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose43$15,535None
Aspiration and/or injection of fluid from large joint67$10,610$63
Short return visit (20+ min)55$6,066$72
Replacement of knee joint, both sides of knee14$2,443$163
Repair of shoulder rotator cuff using an endoscope11$1,518$138
Injection, triamcinolone acetonide, not otherwise specified, 10 mg20$81None

2022: 7 services

Original Medicare services billed in 2022
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose42$17,396None
Aspiration and/or injection of fluid from large joint62$9,225$63
Short return visit (20+ min)67$6,594$69
Replacement of knee joint, both sides of knee12$1,939$162
New patient visit (30+ min)26$1,918$74
Repair of shoulder rotator cuff using an endoscope12$1,787$137
Injection, triamcinolone acetonide, not otherwise specified, 10 mg20$66None

2021: 5 services

Original Medicare services billed in 2021
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose23$12,606None
Aspiration and/or injection of fluid from large joint37$6,552$66
Short return visit (20+ min)43$4,730$71
Repair of shoulder rotator cuff using an endoscope14$1,949$139
Injection, triamcinolone acetonide, not otherwise specified, 10 mg13$53None

2020: 3 services

Original Medicare services billed in 2020
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose26$11,473None
Aspiration and/or injection of fluid from large joint34$6,066$62
Short return visit (20+ min)37$2,779$56

2019: 4 services

Original Medicare services billed in 2019
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose24$21,426None
Aspiration and/or injection of fluid from large joint41$6,373$53
Short return visit (20+ min)46$3,795$55
Injection, triamcinolone acetonide, not otherwise specified, 10 mg14$47None

2018: 7 services

Original Medicare services billed in 2018
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose22$10,944None
Aspiration and/or injection of fluid from large joint42$6,681$55
Short return visit (20+ min)44$3,261$56
Repair of shoulder rotator cuff using an endoscope14$1,852$132
New patient visit (30+ min)14$1,209$86
Short return visit11$435$36
Injection, triamcinolone acetonide, not otherwise specified, 10 mg19$97None

2017: 5 services

Original Medicare services billed in 2017
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose23$10,029None
Aspiration and/or injection of fluid from large joint40$5,072$51
Short return visit (20+ min)30$2,000$51
Repair of shoulder rotator cuff using an endoscope12$1,583$132
Injection, triamcinolone acetonide, not otherwise specified, 10 mg21$177None

2016: 6 services

Original Medicare services billed in 2016
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose22$11,436None
Aspiration and/or injection of fluid from large joint36$5,263$52
Short return visit (20+ min)31$2,129$53
Return visit (30+ min)11$941$86
Shaving of part of shoulder bone and repair of ligament using an endoscope11$232$21
Injection, triamcinolone acetonide, not otherwise specified, 10 mg17$116None

2015: 9 services

Original Medicare services billed in 2015
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose15$6,310None
Aspiration and/or injection of fluid from large joint42$4,189$51
Short return visit (20+ min)33$2,321$57
Repair of shoulder rotator cuff using an endoscope12$1,565$130
Return visit (30+ min)12$1,029$86
New patient visit (30+ min)12$946$79
Short return visit19$785$29
Shaving of part of shoulder bone and repair of ligament using an endoscope14$296$21
Injection, triamcinolone acetonide, not otherwise specified, 10 mg22$95None

2014: 4 services

Original Medicare services billed in 2014
Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose19$3,037None
Aspiration and/or injection of fluid from large joint23$2,128$51
Short return visit (20+ min)20$1,665$57
Short return visit16$600$35

2013: 4 services

Original Medicare services billed in 2013
Replacement of knee joint, both sides of knee21$3,364$160
Short return visit (20+ min)45$2,328$48
Removal of extensive shoulder joint tissue using an endoscope13$878$68
Shaving of part of shoulder bone and repair of ligament using an endoscope19$435$23

Money from drug and device companies

$359 in 2025

Industry payments by year
202524None$359
202435None$1,000
202311None$14
202222None$172

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

A payment is not proof that care is biased.

Payments by company
BioventusDurolane$210
3 payments
  • Meals for Durolane · 2025-11-17 · $173
  • Meals for Durolane · 2025-09-14 · $20
  • Meals for Durolane · 2025-03-12 · $17
Medical Device Business ServicesEthicon$149
1 payment
  • Meals for Ethicon · 2025-06-13 · $149
See all 4 published payments
Every published payment
BioventusMeals · 2025-11-17Durolane$173
BioventusMeals · 2025-09-14Durolane$20
Medical Device Business ServicesMeals · 2025-06-13Ethicon$149
BioventusMeals · 2025-03-12Durolane$17
See earlier years (2024, 2023, 2022)

2024: $1,000

Payments by company in 2024
StrykerZipseal 24 Surgical Skin Closure Kit$668
1 payment
  • Travel for Zipseal 24 Surgical Skin Closure Kit · 2024-05-16 · $668
BioventusDurolane$182
3 payments
  • Meals for Durolane · 2024-11-14 · $150
  • Meals for Durolane · 2024-08-26 · $16
  • Meals for Durolane · 2024-06-10 · $16
Medical Device Business ServicesEthicon$150
1 payment
  • Meals for Ethicon · 2024-03-22 · $150

2023: $14

Payments by company in 2023
BioventusDurolane$14
1 payment
  • Meals for Durolane · 2023-09-25 · $14

2022: $172

Payments by company in 2022
Smith+NephewBioinductive Implant With Arthroscopic Delivery System - Medium$147
1 payment
  • Meals for Bioinductive Implant With Arthroscopic Delivery System - Medium · 2022-05-12 · $147
Pacira PharmaceuticalsIovera$25
1 payment
  • Meals for Iovera · 2022-05-02 · $25

Professional record

NPI
1730461054
Licence
CA PA21791
Gender
Male
More record details
Sole proprietor
No
Taxonomy
Physician assistant (363A00000X)
Mailing address
2350 W. El Camino Real, 2nd Floor, Mountain View, CA, 94040
NPI first listed
2011-09-13
NPI last updated
2016-02-04

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