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Vivian Diep

Physician Assistant · San Jose

NPI 1487167912

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Office
1

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 Vivian Diep’s office at (408) 223-7000 to ask if they take your plan before you enroll.

Original Medicare doctor bills

$18,508

Medicare paid this office $18,508 for 153 people. Most of that is long return visits and Botox.

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

Largest Original Medicare bills
Long return visit (40+ min)59$9,099$147
New patient visit (60+ min)12$2,127$177
Return visit (30+ min)19$1,997$105
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes43$1,792$37

Who their Medicare patients are

153 Original Medicare patients in 2024. Average age 72 · Women 46% · Also on Medicaid 37% · Health risk score 3.22. Sicker patients than 9 in 10 peers; the typical physician assistant clinician is at 1.31.

Conditions among them: High blood pressure 75% · Diabetes 44% · Coronary heart disease 40% · Chronic kidney disease 40% · Cancer 39% · Heart failure 29% · Depression 24% · Atrial fibrillation 21% · COPD 20% · Dementia 12% · Stroke 12%.

The office billed $115,744, Medicare allowed $23,230 and paid $18,508; for 188 services of 12 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.

Year by year

Original Medicare by year
2024153188723.22$115,744$18,508
20201926681.32$20,248$1,249
20192729671.59$16,977$1,941

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

2019: 2 services

Original Medicare services billed in 2019
Emergency department visit with moderate level of medical decision making13$1,087$84
Emergency department visit with low level of medical decision making11$484$44

Drugs they prescribed that Part D paid

$12,735

Pharmacies billed $12,735 in 2024.

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

Opioids were 5% of their Part D prescriptions (13 of 259) in 2024. Above the middle of the specialty; the typical physician assistant clinician is at 1%.

243 generic and fewer than 11 brand-name prescriptions · $12,735 in drug cost · 38 antibiotic prescriptions.

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.

Largest Part D drug costs
Valganciclovir26$5,162$199
Pantoprazole29$197$7
Methylprednisolone11$127$12
Oxycodone12$92$8
Rosuvastatin30$87$3
See all 7 drugs
Every Part D drug this clinician prescribed
Valganciclovir26$5,162$199
Pantoprazole29$197$7
Methylprednisolone11$127$12
Oxycodone12$92$8
Rosuvastatin30$87$3
Sulfamethoxazole-Trimethoprim37$72$2
Ondansetron Odt12$68$6

Year by year

Part D prescribing by year
2024259385% (13)None$12,735
20239315NoneNone$50,694
202227321NoneNone$148,463
2021417104None47%$248,382
2020709168None50%$380,730
2019151102NoneNone$34,799
20185536NoneNone$1,013

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

See the drugs prescribed each year

2023: 2 drugs

Part D drugs prescribed in 2023
Posaconazole12$43,802$3,650
Sulfamethoxazole-Trimethoprim14$129$9

2022: 8 drugs

Part D drugs prescribed in 2022
Posaconazole17$35,299$2,076
Trulicity11$10,438$949
Valganciclovir34$10,091$297
Nystatin23$1,323$58
Sulfamethoxazole-Trimethoprim22$255$12
Pantoprazole20$206$10
Metoprolol15$95$6
Furosemide11$74$7

2021: 9 drugs

Part D drugs prescribed in 2021
Trulicity31$59,972$1,935
Jardiance33$37,228$1,128
Novolog Flexpen22$31,945$1,452
Farxiga13$12,049$927
Lantus Solostar19$5,848$308
Repaglinide13$1,291$99
Atorvastatin19$290$15
Losartan11$195$18
Metformin17$161$9

2020: 20 drugs

Part D drugs prescribed in 2020
Trulicity59$99,110$1,680
Jardiance47$42,931$913
Novolog Flexpen38$38,219$1,006
Invokana21$24,629$1,173
Farxiga20$24,505$1,225
Rybelsus22$24,132$1,097
Ozempic14$20,317$1,451
Januvia17$18,736$1,102
Lantus Solostar26$10,097$388
Repaglinide15$1,108$74
Ezetimibe14$833$59
Ultra-Fine Nano Pen Needle14$820$59
Metformin Hcl Er24$390$16
Atorvastatin22$355$16
Levothyroxine11$310$28
Losartan20$308$15
Metformin23$257$11
Pioglitazone14$194$14
Gabapentin11$170$15
Naproxen12$30$2

2019: 1 drug

Part D drugs prescribed in 2019
Naproxen13$40$3

Money from drug and device companies

$27 in 2025

Industry payments by year
202511None$27
202211None$141
202146None$194

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
StrykerClottriever Bold Catheter$27
1 payment
  • Meals for Clottriever Bold Catheter · 2025-11-04 · $27
See the published payment
Every published payment
StrykerMeals · 2025-11-04Clottriever Bold Catheter$27
See earlier years (2022, 2021)

2022: $141

Payments by company in 2022
DavolProgel Applicator Spray Tips$141
1 payment
  • Meals for Progel Applicator Spray Tips · 2022-03-24 · $141

2021: $194

Payments by company in 2021
Abbott LaboratoriesHeartmate 3 Left Ventricular Assist Device$114
3 payments
  • Meals for Heartmate 3 Left Ventricular Assist Device · 2021-12-21 · $94
  • Meals for Freestyle Libre · 2021-01-20 · $2
  • Meals for Freestyle Libre · 2021-01-20 · $18
LivaNova USAProtekduo Kit$41
1 payment
  • Meals for Protekduo Kit · 2021-10-28 · $41
AmgenAimovig$22
1 payment
  • Meals for Aimovig · 2021-01-27 · $22
GlaxoSmithKlineBenlysta$18
1 payment
  • Meals for Benlysta · 2021-02-09 · $18

Professional record

NPI
1487167912
More record details
Sole proprietor
Yes
Taxonomy
Physician assistant (363A00000X)
Mailing address
751 S Bascom Ave, San Jose, CA, 95128
NPI first listed
2017-11-06
NPI last updated
2020-01-15
NPI record certified
2020-01-15

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

Extra NPI addresses: 751 S Bascom Ave, San Jose, CA, 95128