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Can Chen, MD

Internal Medicine · Stanford

NPI 1942649157

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
16
2 carriers
Office
1

Offices

1 location · Stanford Health Care · 3,152 clinicians in this group

Looking this up.

Plans that list them

16 plans · 2 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chen’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

16 of 16 plans

Plans whose provider directory lists this clinician
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Silicon (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health smartHMO (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health the ONE (HMO)Alignment Health PlanListedOct 3, 2026
SCAN Balance (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
SCAN Classic (HMO)SCAN Health PlanListedOct 3, 2026
SCAN MyChoice (HMO)SCAN Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026

California Medical Board record

Licence A138281 · Current

Licensed to practise in California · since 2015 · expires 2028-10-31 · Peking University Health Science Center.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
76.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Original Medicare doctor bills

$52,152

Medicare paid this office $52,152 for 109 people.

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

Largest Original Medicare bills
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes75$25,599$90
Residence visit for established patient with moderate level of medical decision making, per day at least 40 minutes23$11,310$104
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes60$7,989$116
Nursing facility discharge day management, 30 minutes or less59$4,474$71
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more11$2,221$63

Who their Medicare patients are

109 Original Medicare patients in 2024. Average age 89 · 85 and older 80% · Women 70% · Health risk score 1.61. At or below the middle of the specialty; the typical internal medicine clinician is at 1.76.

Conditions among them: High blood pressure 75% · Atrial fibrillation 49% · Depression 44% · Heart failure 41% · Dementia 39% · Coronary heart disease 29% · Chronic kidney disease 29% · Cancer 20% · Diabetes 17% · COPD 17% · Stroke 17%.

The office billed $221,748, Medicare allowed $71,085 and paid $52,152; for 564 services of 9 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
2024109564891.61$221,748$52,152
2023122632881.64$200,482$59,705
2022140764881.57$207,506$64,721
2021138573871.62$153,427$54,242
2020108566891.58$145,096$49,012
2019193791851.66$187,531$65,749
2018214857851.68$167,125$64,317
201757173881.57$31,480$12,634

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
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes83$29,300$95
Residence visit for established patient with moderate level of medical decision making, per day at least 40 minutes21$10,440$105
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes72$9,504$119
Nursing facility discharge day management, 30 minutes or less81$5,993$69
Initial nursing facility care with high level of medical decision making, per day 50 minutes or more12$2,012$168
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more15$1,893$53

2022: 5 services

Original Medicare services billed in 2022
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes89$26,194$79
Established patient custodial care facility, group care, or assisted living visit, typically 40 minutes30$13,927$106
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes95$12,850$112
Nursing facility discharge day management, 30 minutes or less88$6,153$62
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more14$3,890$53

2021: 6 services

Original Medicare services billed in 2021
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes76$17,752$87
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes85$11,776$125
Established patient custodial care facility, group care, or assisted living visit, typically 40 minutes26$9,899$129
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more19$5,627$65
Nursing facility discharge day management, 30 minutes or less77$5,360$65
Subsequent nursing facility care with high level of medical decision making, per day at least 45 minutes15$2,993$130

2020: 5 services

Original Medicare services billed in 2020
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes69$19,208$84
Established patient custodial care facility, group care, or assisted living visit, typically 40 minutes25$11,370$111
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes63$7,830$113
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more18$5,601$60
Nursing facility discharge day management, 30 minutes or less63$4,311$63

2019: 5 services

Original Medicare services billed in 2019
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes117$19,824$81
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes146$18,951$111
Nursing facility discharge day management, 30 minutes or less152$10,523$62
Established patient custodial care facility, group care, or assisted living visit, typically 40 minutes24$9,432$115
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more26$6,419$54

2018: 6 services

Original Medicare services billed in 2018
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more133$23,688$59
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes152$20,079$114
Nursing facility discharge day management, 30 minutes or less142$10,365$64
Established patient custodial care facility, group care, or assisted living visit, typically 25 minutes19$3,504$78
Subsequent nursing facility care with moderate level of medical decision making, per day at least 30 minutes24$2,992$83
Long return visit (40+ min)11$1,087$99

2017: 3 services

Original Medicare services billed in 2017
Subsequent nursing facility care with straightforward level of medical decision making, per day 20 minutes or more45$6,909$63
Initial nursing facility care with moderate level of medical decision making, per day at least 35 minutes28$3,416$114
Nursing facility discharge day management, 30 minutes or less29$1,934$67

Drugs they prescribed that Part D paid

$101,793

Pharmacies billed $101,793 in 2024.

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

Opioids were 2% of their Part D prescriptions (25 of 1,135) in 2024. Above the middle of the specialty; the typical internal medicine clinician is at 1%.

919 generic and 216 brand-name prescriptions · $101,793 in drug cost · 29 antibiotic prescriptions to 12 people · 13 antipsychotic prescriptions to people over 65.

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
Eliquis127$59,317$467
Myrbetriq14$9,333$667
Mirtazapine51$2,039$40
Atorvastatin85$1,538$18
Duloxetine24$607$25
See all 37 drugs
Every Part D drug this clinician prescribed
Eliquis127$59,317$467
Myrbetriq14$9,333$667
Mirtazapine51$2,039$40
Atorvastatin85$1,538$18
Duloxetine24$607$25
Escitalopram30$570$19
Metoprolol29$506$17
Omeprazole27$496$18
Synthroid11$492$45
Levothyroxine44$409$9
Donepezil17$407$24
Rosuvastatin18$387$22
Losartan36$380$11
Diltiazem 24hr Er (Cd)13$376$29
Lorazepam14$371$27
Alendronate18$364$20
Prednisone26$347$13
Lisinopril19$303$16
Olanzapine13$289$22
Famotidine11$285$26
Metoprolol20$284$14
Diclofenac15$277$18
Gabapentin24$275$11
Furosemide29$265$9
Memantine14$254$18
Torsemide14$248$18
Trazodone17$242$14
Brimonidine13$229$18
Sertraline20$208$10
Amlodipine Besylate17$176$10
Spironolactone21$153$7
Latanoprost17$151$9
Oxycodone14$140$10
Hydrochlorothiazide14$103$7
Finasteride15$94$6
Alfuzosin Hcl Er12$76$6
Benazepril15$64$4

Year by year

Part D prescribing by year
20241,135742% (25)19%$101,793
20231,211933% (36)None$89,395
2022928977% (61)None$77,314
2021820787% (54)31%$77,050
20201,186764% (43)32%$68,833
20191,4051444% (60)23%$77,246
20181,1301146% (62)None$57,201
20171353910% (13)None$9,154
2016674520% (0)None$42,075
2015177270% (0)None$6,606

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

See the drugs prescribed each year

2023: 27 drugs

Part D drugs prescribed in 2023
Eliquis78$34,032$436
Breo Ellipta16$4,764$298
Atorvastatin78$1,577$20
Mirtazapine31$1,027$33
Diclofenac30$1,005$33
Losartan58$967$17
Levothyroxine78$897$12
Memantine23$808$35
Escitalopram52$788$15
Metoprolol40$725$18
Duloxetine27$554$21
Synthroid11$534$49
Sertraline35$517$15
Cephalexin11$477$43
Lorazepam15$363$24
Pantoprazole16$355$22
Donepezil23$325$14
Gabapentin16$275$17
Famotidine12$264$22
Prednisone19$228$12
Furosemide33$216$7
Oxycodone21$215$10
Amlodipine Besylate31$210$7
Irbesartan11$180$16
Lisinopril21$129$6
Metoprolol17$104$6
Fluticasone Propionate12$101$8

2022: 23 drugs

Part D drugs prescribed in 2022
Eliquis65$26,937$414
Novolin 70-30 Flexpen18$2,034$113
Rivastigmine13$1,979$152
Breo Ellipta12$1,902$159
Mirtazapine37$1,397$38
Levothyroxine65$887$14
Diclofenac15$624$42
Atorvastatin36$468$13
Gabapentin24$382$16
Escitalopram27$368$14
Tamsulosin22$324$15
Metoprolol21$319$15
Oxycodone31$313$10
Amlodipine Besylate39$268$7
Cephalexin17$268$16
Furosemide49$241$5
Omeprazole16$233$15
Donepezil17$203$12
Sertraline26$203$8
Torsemide12$182$15
Metoprolol18$146$8
Losartan19$120$6
Tramadol16$77$5

2021: 19 drugs

Part D drugs prescribed in 2021
Eliquis108$38,859$360
Spiriva16$6,007$375
Breo Ellipta19$5,587$294
Mirtazapine35$934$27
Atorvastatin61$704$12
Levothyroxine57$645$11
Latanoprost16$517$32
Oxycodone26$351$14
Furosemide37$314$8
Tamsulosin15$304$20
Losartan29$287$10
Metoprolol25$269$11
Amlodipine Besylate29$245$8
Metoprolol13$233$18
Clopidogrel13$183$14
Omeprazole14$175$13
Lorazepam13$103$8
Alendronate11$78$7
Tramadol14$42$3

2020: 31 drugs

Part D drugs prescribed in 2020
Eliquis94$25,933$276
Breo Ellipta23$7,703$335
Spiriva30$7,215$241
Enoxaparin39$2,443$63
Atorvastatin79$1,327$17
Levothyroxine94$1,082$12
Hydroxychloroquine Sulfate12$836$70
Furosemide73$612$8
Sertraline19$609$32
Mirtazapine38$607$16
Omeprazole16$541$34
Losartan47$532$11
Ipratropium15$456$30
Tamsulosin13$439$34
Metoprolol23$399$17
Amlodipine Besylate59$386$7
Montelukast12$377$31
Clopidogrel22$372$17
Metoprolol32$366$11
Latanoprost12$337$28
Anastrozole13$315$24
Amiodarone16$230$14
Triamcinolone Acetonide21$210$10
Oxycodone20$208$10
Escitalopram17$147$9
Allopurinol12$146$12
Alendronate19$145$8
Warfarin38$140$4
Lorazepam11$132$12
Tramadol14$103$7
Carvedilol16$96$6

2019: 29 drugs

Part D drugs prescribed in 2019
Eliquis59$22,180$376
Breo Ellipta16$4,427$277
Spiriva15$3,545$236
Symbicort12$3,422$285
Levothyroxine133$1,579$12
Sertraline20$1,289$64
Hydroxychloroquine Sulfate13$999$77
Mirtazapine60$888$15
Metoprolol38$834$22
Atorvastatin63$816$13
Losartan61$784$13
Tamsulosin36$572$16
Gabapentin37$493$13
Pantoprazole27$487$18
Metoprolol33$402$12
Amlodipine Besylate49$389$8
Omeprazole19$321$17
Escitalopram21$310$15
Furosemide34$267$8
Ranitidine12$250$21
Lisinopril28$218$8
Oxycodone25$196$8
Alendronate15$191$13
Ondansetron12$163$14
Tramadol16$147$9
Triamcinolone Acetonide12$122$10
Trazodone11$99$9
Carvedilol11$87$8
Spironolactone12$59$5

2018: 26 drugs

Part D drugs prescribed in 2018
Eliquis17$7,910$465
Symbicort11$2,730$248
Oseltamivir Phosphate23$2,535$110
Levothyroxine88$1,236$14
Metoprolol41$840$20
Duloxetine17$730$43
Polyethylene Glycol 335030$577$19
Omeprazole31$570$18
Oxycodone28$405$14
Mirtazapine37$376$10
Pantoprazole31$334$11
Amlodipine Besylate35$286$8
Sertraline20$282$14
Gabapentin17$280$16
Atorvastatin21$259$12
Simvastatin30$257$9
Furosemide41$255$6
Alendronate22$193$9
Lisinopril34$191$6
Quetiapine16$189$12
Tamsulosin15$165$11
Metoprolol12$164$14
Tramadol15$154$10
Losartan13$137$11
Trazodone12$111$9
Cephalexin11$75$7

2016: 15 drugs

Part D drugs prescribed in 2016
Nifedipine Er41$1,302$32
Atorvastatin56$479$9
Metoprolol21$407$19
Clotrimazole15$243$16
Gabapentin22$209$9
Lisinopril64$196$3
Simvastatin46$186$4
Levothyroxine14$170$12
Omeprazole11$123$11
Metformin41$122$3
Losartan16$82$5
Ranitidine13$55$4
Amlodipine Besylate21$46$2
Carvedilol14$40$3
Hydrochlorothiazide20$35$2

2015: 3 drugs

Part D drugs prescribed in 2015
Nifedipine Er13$747$57
Atorvastatin12$138$11
Metformin13$56$4

Money from drug and device companies

$168 in 2019

A payment is not proof that care is biased.

Payments by company
ACADIA PharmaceuticalsNuplazid$90
1 payment
  • Meals for Nuplazid · 2019-02-28 · $90
Avanir PharmaceuticalsNuedexta$78
1 payment
  • Meals for Nuedexta · 2019-03-07 · $78
See all 2 published payments
Every published payment
Avanir PharmaceuticalsMeals · 2019-03-07Nuedexta$78
ACADIA PharmaceuticalsMeals · 2019-02-28Nuplazid$90

Professional record

NPI
1942649157
Licence
CA A138281California A138281: Current · expires 2028-10-31
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Internal medicine (207R00000X); Federal specialty code 207RG0300X (207RG0300X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2013-06-20
NPI last updated
2024-04-18
NPI record certified
2024-04-18

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

Extra NPI addresses: 211 Quarry Rd # 402, Palo Alto, CA, 94304