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Celina Jan-Yi Chau, DO

Family Practice · Palo Alto

NPI 1942706809

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
1
1 carrier
Offices
5

Offices

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

Looking this up.

Hospitals listed: 757662. That is not proof they admit you there this week.

Plans that list them

1 plan · 1 carrier

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chau’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

Plans whose provider directory lists this clinician
Alignment Health Sutter Advantage +More (HMO)Alignment Health PlanListedOct 3, 2026

Original Medicare doctor bills

$57,627

Medicare paid this office $57,627 for 148 people.

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

Largest Original Medicare bills
Return visit (30+ min)96$15,883$108
Long return visit (40+ min)50$12,947$160
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit72$11,345$158
Short return visit (20+ min)54$4,586$72
Sarscov2 vac 50 mcg/0.5ml im16$2,585$152
See all 10 services
Every Original Medicare service billed
Return visit (30+ min)96$15,883$108
Long return visit (40+ min)50$12,947$160
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit72$11,345$158
Short return visit (20+ min)54$4,586$72
Sarscov2 vac 50 mcg/0.5ml im16$2,585$152
Influenza vaccine, inactivated18$1,473$82
Admn sarscov2 vacc 1 dose16$886$52
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and11$849$53
Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's40$837$15
Administration of influenza virus vaccine19$742$39

Who their Medicare patients are

148 Original Medicare patients in 2024. Average age 77 · Women 66% · Also on Medicaid 11% · Health risk score 0.82. At or below the middle of the specialty; the typical family practice clinician is at 1.13.

Conditions among them: High blood pressure 61% · Coronary heart disease 18% · Chronic kidney disease 16% · Diabetes 15% · Depression 11% · Atrial fibrillation 9% · COPD 8%.

The office billed $156,805, Medicare allowed $72,274 and paid $57,627; for 570 services of 33 kinds; $4,989 of it was for drugs given in the office and $52,638 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
2024148570770.82$156,805$57,627
2023224538760.88$149,522$57,199
2022230588760.85$164,415$60,337
202166128780.91$32,861$12,541

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: 7 services

Original Medicare services billed in 2023
Return visit (30+ min)104$14,789$106
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit92$14,211$154
Long return visit (40+ min)54$12,184$149
Short return visit (20+ min)85$7,437$74
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage15$1,132$75
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or14$796$29
Administration of influenza virus vaccine17$628$37

2022: 8 services

Original Medicare services billed in 2022
Return visit (30+ min)127$18,078$101
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit85$13,109$154
Long return visit (40+ min)62$12,745$146
Short return visit (20+ min)87$6,954$68
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage20$1,405$70
Administration of influenza virus vaccine29$1,083$37
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or13$514$27
Short return visit12$413$34

2021: 4 services

Original Medicare services billed in 2021
Long return visit (40+ min)31$5,412$159
Return visit (30+ min)22$2,557$116
Short return visit (20+ min)13$1,249$89
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or14$771$31

Medicaid work

$209 in 2023

Medicaid paid $209 for 14 billed services this clinician did in 2023, up to 14 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2023
Return visit (30+ min)14$209
Medicaid work by year
202314114$209
202213112$0
See the largest Medicaid services in earlier years

2022

Largest Medicaid services in 2022
Return visit (30+ min)13$0

Drugs they prescribed that Part D paid

$105,224

Pharmacies billed $105,224 in 2024.

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

1,718 generic and 147 brand-name prescriptions · $105,224 in drug cost · 47 antibiotic prescriptions to 30 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.

Largest Part D drug costs
Jardiance16$27,167$1,698
Eliquis18$24,307$1,350
Januvia12$8,794$733
Atorvastatin153$1,578$10
Nano 2nd Gen Pen Needle13$995$77
See all 47 drugs
Every Part D drug this clinician prescribed
Jardiance16$27,167$1,698
Eliquis18$24,307$1,350
Januvia12$8,794$733
Atorvastatin153$1,578$10
Nano 2nd Gen Pen Needle13$995$77
Levothyroxine112$973$9
Losartan75$753$10
Fluticasone Propionate37$672$18
Lisinopril110$646$6
Amlodipine Besylate120$604$5
Gabapentin47$579$12
Metoprolol42$577$14
Rosuvastatin30$572$19
Lorazepam23$474$21
Albuterol Sulfate Hfa18$460$26
Simvastatin52$442$8
Escitalopram32$436$14
Tamsulosin29$426$15
Diclofenac15$366$24
Pravastatin30$351$12
Montelukast19$347$18
Omeprazole35$341$10
Duloxetine16$334$21
Valsartan13$312$24
Allopurinol20$290$14
Clopidogrel12$284$24
Metformin36$282$8
Sertraline28$263$9
Hydrocortisone16$262$16
Trazodone33$246$7
Metformin Hcl Er19$238$13
Clotrimazole14$232$17
Benazepril11$223$20
Azelastine14$221$16
Rizatriptan12$184$15
Glipizide Er14$181$13
Furosemide16$174$11
Triamcinolone Acetonide24$171$7
Lisinopril-Hydrochlorothiazide12$168$14
Zolpidem21$163$8
Famotidine13$151$12
Atenolol18$133$7
Hydrochlorothiazide32$131$4
Alendronate11$120$11
Naproxen11$99$9
Carvedilol11$79$7
Hydroxyzine12$75$6

Year by year

Part D prescribing by year
20241,879203None8%$105,224
20231,8122181% (11)9%$97,344
20221,3312132% (30)10%$72,744
20218047NoneNone$3,184

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

See the drugs prescribed each year

2023: 46 drugs

Part D drugs prescribed in 2023
Eliquis19$23,235$1,223
Trelegy Ellipta11$6,757$614
Atorvastatin139$2,158$16
Diclofenac22$1,225$56
Amlodipine Besylate129$1,187$9
Levothyroxine81$1,106$14
Nano 2nd Gen Pen Needle17$980$58
Lisinopril100$977$10
Metoprolol48$971$20
Fluticasone Propionate40$936$23
Simvastatin57$793$14
Omeprazole43$789$18
Valacyclovir13$780$60
Albuterol Sulfate Hfa22$715$32
Tamsulosin19$695$37
Gabapentin49$691$14
Losartan56$564$10
Trazodone24$376$16
Irbesartan12$335$28
Fluoxetine11$309$28
Allopurinol18$298$17
Rosuvastatin18$293$16
Hydrochlorothiazide37$266$7
Benazepril11$255$23
Clopidogrel13$252$19
Clotrimazole15$246$16
Lisinopril-Hydrochlorothiazide16$235$15
Metformin28$234$8
Alendronate15$229$15
Sertraline16$188$12
Venlafaxine Hcl Er13$180$14
Zolpidem36$169$5
Escitalopram18$164$9
Famotidine16$159$10
Ketoconazole12$151$13
Pravastatin23$142$6
Metformin Hcl Er15$130$9
Furosemide16$125$8
Cephalexin11$103$9
Hydroxyzine16$95$6
Naproxen12$93$8
Montelukast11$87$8
Ibuprofen15$86$6
Triamcinolone Acetonide17$80$5
Atenolol12$44$4
Alprazolam11$32$3

2022: 33 drugs

Part D drugs prescribed in 2022
Eliquis12$13,114$1,093
Atorvastatin82$1,195$15
Gabapentin62$1,085$18
Levothyroxine62$1,078$17
Diclofenac22$1,065$48
Albuterol Sulfate Hfa18$719$40
Amlodipine Besylate86$697$8
Lisinopril81$559$7
Fluticasone Propionate23$519$23
Simvastatin34$460$14
Clopidogrel12$420$35
Omeprazole19$394$21
Metoprolol15$347$23
Zolpidem69$329$5
Trazodone23$308$13
Warfarin19$279$15
Alendronate13$261$20
Escitalopram13$239$18
Tamsulosin12$206$17
Ketoconazole12$199$17
Benazepril12$192$16
Pantoprazole11$183$17
Quetiapine11$173$16
Olopatadine11$172$16
Hydrochlorothiazide27$163$6
Metformin25$158$6
Rosuvastatin12$141$12
Tramadol18$140$8
Cephalexin16$125$8
Losartan27$117$4
Famotidine13$52$4
Alprazolam11$51$5
Cyclobenzaprine11$49$4

Money from drug and device companies

$125 in 2025

A payment is not proof that care is biased.

Payments by company
Exact SciencesThe Cologuard Plus Collection Kit$125
1 payment
  • Meals for The Cologuard Plus Collection Kit · 2025-06-11 · $125
See the published payment
Every published payment
Exact SciencesMeals · 2025-06-11The Cologuard Plus Collection Kit$125

Professional record

NPI
1942706809
Licence
CA 20A17667
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Family medicine (207Q00000X)
Mailing address
325 Distel Cir, Los Altos, CA, 94022
NPI first listed
2018-03-31
NPI last updated
2021-09-20
NPI record certified
2021-09-20

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