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Chrysoula Dosiou, MD

Endocrinology · Palo Alto

NPI 1508992769

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
17
3 carriers
Offices
2

Offices

2 locations · Stanford Health Care · 3,152 clinicians in this group

Looking this up.

Hospitals listed: Stanford Health Care. That is not proof they admit you there this week.

Plans that list them

17 plans · 3 carriers

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

17 of 17 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
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A67866 · Current

Licensed to practise in California · since 1999 · expires 2026-11-30 · Harvard Medical School.

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

Hospitals they work in

1 hospital

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

  • Stanford Health CareStanford, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Stanford Health Care, which runs 3 hospitalsHome of Stanford Cancer Institute, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 83% would definitely recommend it
    Overall rating: 5 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 5.31 (4.24 to 6.37) · 8,661 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 14.1 (12.7 to 15.7) · 2,191 cases, Jan 2024 – Dec 2024Better than the national rate — Postoperative respiratory failure rate: 4.08 (1.95 to 6.21) · 5,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.317, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.446, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.241, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 3,348 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Stanford Health Care

Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 2 better, 5 the same, 4 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Stanford Health Care
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths5.31 (4.24 to 6.37) · 8,661 casesWorseJul 2022 – Jun 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits14.1 (12.7 to 15.7) · 2,191 casesWorseJan 2024 – Dec 2024
Postoperative respiratory failure rateComplications and deaths4.08 (1.95 to 6.21) · 5,296 casesBetterJul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.317BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.446BetterOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.241BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.7 (0.6 to 0.9) · 3,348 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.06 (0.45 to 1.67) · 5,374 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.86 (0.72 to 1)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths166.09 (137.88 to 194.3) · 470 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.1 · 192 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6.4 · 146 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths9.7 · 253 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.3 · 880 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.3 · 935 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths8.7 · 501 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.1 · 7,730 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.13 (0 to 0.27) · 20,799 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.28 (0.14 to 0.43) · 23,182 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths0.94 (0.2 to 1.68) · 5,694 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.36 (1.54 to 3.19) · 7,846 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.2 (3.76 to 6.64) · 5,603 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.38 (0.23 to 2.53) · 2,211 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.52 (0.21 to 0.83) · 19,915 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.6 · 416 casesNoneApr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.869No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.857No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.368No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits16.2 · 247 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20.5 · 1,021 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits47.8 · 258 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-1.6 · 990 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits20.8 · 976 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.5 · 959 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.2 (4.4 to 6.2) · 2,191 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.1 · 425 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits9.6 · 158 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.6 · 183 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.7 (10.4 to 15.4) · 4,578 casesNo differentJan 2022 – Dec 2024

What patients said (6,810 patients answered, 25% of those asked)

Patient survey stars by topic at Stanford Health Care
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at Stanford Health Care
Room was "always" clean75%
Nurses "always" communicated well82%
Doctors "always" communicated well81%
Staff "always" explained63%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge89%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)79%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully79%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night53%
"YES", patients would definitely recommend the hospital83%
Staff "always" explained possible side effects50%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$18,062

Medicare paid this office $18,062 for 89 people.

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

Largest Original Medicare bills
Return visit (30+ min)53$6,332$81
Return visit (30+ min)28$5,276$106
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's47$979$14
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's27$629$14

Who their Medicare patients are

89 Original Medicare patients in 2024. Average age 72 · Women 78% · Also on Medicaid 25% · Health risk score 1.33. At or below the middle of the specialty; the typical endocrinology clinician is at 1.46.

Conditions among them: High blood pressure 57% · Cancer 25% · Coronary heart disease 24% · Atrial fibrillation 21% · Diabetes 19% · Chronic kidney disease 18% · Depression 15% · Heart failure 13% · COPD 12%.

The office billed $69,212, Medicare allowed $24,592 and paid $18,062; for 286 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.

Year by year

Original Medicare by year
202489286721.33$69,212$18,062
202379134711.23$43,438$10,981
202284128701.31$44,963$10,173
202192167701.65$64,753$14,622
202081150711.41$54,442$10,383
201972113711.17$11,274$7,831
201887143701.57$17,526$10,680
201771123691.34$22,119$8,407
201677121671.11$28,462$9,314
201561107681.17$23,334$7,589
201464125661.16$28,694$9,464
201358123701.26$26,948$8,459

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: 1 service

Original Medicare services billed in 2023
Return visit (30+ min)69$8,146$76

2022: 1 service

Original Medicare services billed in 2022
Return visit (30+ min)69$7,295$74

2021: 2 services

Original Medicare services billed in 2021
Return visit (30+ min)66$8,832$81
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes14$1,754$125

2020: 2 services

Original Medicare services billed in 2020
Return visit (30+ min)62$5,512$63
Telephone medical discussion with physician, 21-30 minutes11$1,183$74

2019: 2 services

Original Medicare services billed in 2019
Return visit (30+ min)63$5,722$64
Long return visit (40+ min)18$1,806$90

2018: 2 services

Original Medicare services billed in 2018
Return visit (30+ min)67$7,011$67
Long return visit (40+ min)11$1,197$100

2017: 2 services

Original Medicare services billed in 2017
Return visit (30+ min)57$5,581$63
Long return visit (40+ min)18$1,494$83

2016: 2 services

Original Medicare services billed in 2016
Return visit (30+ min)52$5,071$68
Long return visit (40+ min)18$1,784$85

2015: 2 services

Original Medicare services billed in 2015
Return visit (30+ min)44$4,493$62
Long return visit (40+ min)12$1,456$91

2014: 2 services

Original Medicare services billed in 2014
Return visit (30+ min)47$4,859$63
Long return visit (40+ min)18$2,254$90

2013: 2 services

Original Medicare services billed in 2013
Return visit (30+ min)43$4,494$62
Long return visit (40+ min)12$1,242$96

Drugs they prescribed that Part D paid

$23,342

Pharmacies billed $23,342 in 2024.

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

Opioids were 0% of their Part D prescriptions (0 of 350) in 2024. At or below the middle of the specialty; the typical endocrinology clinician is at 0%.

0 generic and 183 brand-name prescriptions · $23,342 in drug cost.

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
Synthroid109$10,226$94
Tirosint33$9,773$296
Levothyroxine101$969$10
Methimazole47$911$19
Alendronate23$226$10

Year by year

Part D prescribing by year
2024350720% (0)52%$23,342
2023313660% (0)52%$22,558
2022361630% (0)55%$24,315
2021365630% (0)56%$20,780
2020377630% (0)66%$20,161
2019388610% (0)63%$20,293
2018345600% (0)63%$21,420
2017302540% (0)54%$12,190
2016297490% (0)55%$14,378
2015239420% (0)51%$11,151
2014287450% (0)54%$17,183
2013271360% (0)62%$10,228

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

See the drugs prescribed each year

2023: 6 drugs

Part D drugs prescribed in 2023
Synthroid99$11,260$114
Tirosint20$6,897$345
Levothyroxine103$1,893$18
Calcitriol11$573$52
Methimazole41$570$14
Alendronate16$247$15

2022: 7 drugs

Part D drugs prescribed in 2022
Synthroid110$10,531$96
Tirosint22$6,930$315
Levothyroxine112$1,821$16
Armour Thyroid14$1,061$76
Calcitriol16$809$51
Methimazole42$364$9
Alendronate19$268$14

2021: 6 drugs

Part D drugs prescribed in 2021
Synthroid104$9,860$95
Tirosint24$6,040$252
Levothyroxine133$2,136$16
Calcitriol12$463$39
Methimazole36$233$6
Alendronate24$173$7

2020: 6 drugs

Part D drugs prescribed in 2020
Synthroid132$9,039$68
Tirosint37$6,351$172
Levothyroxine113$1,976$17
Calcitriol15$623$42
Methimazole32$354$11
Alendronate17$185$11

2019: 6 drugs

Part D drugs prescribed in 2019
Synthroid143$9,065$63
Tirosint20$2,893$145
Levothyroxine83$1,873$23
Calcitriol21$588$28
Methimazole45$476$11
Alendronate32$298$9

2018: 7 drugs

Part D drugs prescribed in 2018
Synthroid127$8,122$64
Levothyroxine96$2,102$22
Estradiol13$1,143$88
Calcitriol13$291$22
Methimazole38$284$7
Liothyronine12$251$21
Alendronate16$219$14

2017: 5 drugs

Part D drugs prescribed in 2017
Synthroid95$5,485$58
Levothyroxine94$2,307$25
Methimazole35$557$16
Calcitriol15$389$26
Alendronate21$229$11

2016: 6 drugs

Part D drugs prescribed in 2016
Synthroid87$4,250$49
Levothyroxine93$2,061$22
Calcitriol12$392$33
Methimazole26$255$10
Alendronate25$240$10
Atenolol12$13$1

2015: 4 drugs

Part D drugs prescribed in 2015
Synthroid51$3,163$62
Levothyroxine103$1,748$17
Alendronate25$292$12
Methimazole24$167$7

2014: 5 drugs

Part D drugs prescribed in 2014
Synthroid78$3,526$45
Levothyroxine103$1,203$12
Vivelle-Dot12$1,009$84
Alendronate19$229$12
Methimazole24$183$8

2013: 5 drugs

Part D drugs prescribed in 2013
Synthroid93$3,154$34
Prempro13$1,302$100
Levothyroxine87$825$9
Methimazole26$296$11
Metformin19$82$4

Money from drug and device companies

$13,252 in 2025

Industry payments by year
202526$13,075$13,252
202311$6,000$6,000
202012$1,800$1,817
2019210$4,500$5,724

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
AmgenTepezza$7,627
4 payments
  • Consulting for Tepezza · 2025-10-09 · $3,725
  • Meals for Tepezza · 2025-09-26 · $6
  • Meals for Tepezza · 2025-09-18 · $171
  • Consulting for Tepezza · 2025-01-29 · $3,725
Argenx USVyvgart Hytrulo$5,625
2 payments
  • Consulting for Vyvgart Hytrulo · 2025-06-05 · $2,625
  • Consulting for Vyvgart Hytrulo · 2025-02-06 · $3,000
See all 6 published payments
Every published payment
AmgenConsulting · 2025-10-09Tepezza$3,725
AmgenMeals · 2025-09-26Tepezza$6
AmgenMeals · 2025-09-18Tepezza$171
Argenx USConsulting · 2025-06-05Vyvgart Hytrulo$2,625
Argenx USConsulting · 2025-02-06Vyvgart Hytrulo$3,000
AmgenConsulting · 2025-01-29Tepezza$3,725
See earlier years (2023, 2020, 2019)

2023: $6,000

Payments by company in 2023
Horizon Therapeutics plcTepezza$6,000
1 payment
  • Consulting for Tepezza · 2023-12-21 · $6,000

2020: $1,817

Payments by company in 2020
Horizon Therapeutics plcTepezza$1,817
2 payments
  • Honoraria for Tepezza · 2020-06-20 · $1,800
  • Meals for Tepezza · 2020-01-28 · $17

2019: $5,724

Payments by company in 2019
Horizon Therapeutics plcNone$5,665
9 payments
  • Travel · 2019-08-10 · $190
  • Meals · 2019-08-10 · $48
  • Meals · 2019-08-10 · $62
  • Meals · 2019-08-10 · $48
  • Travel · 2019-08-10 · $449
  • Travel · 2019-08-10 · $125
  • Travel · 2019-08-10 · $125
  • Honoraria · 2019-08-10 · $4,500
  • Travel · 2019-08-10 · $118
IBSA PharmaTirosint$59
1 payment
  • Meals for Tirosint · 2019-11-01 · $59

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.

Professional record

NPI
1508992769
Licence
CA A67866California A67866: Current · expires 2026-11-30
Trained
Harvard Medical School, 1997
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Medicaid ID
CA 00A678660
Taxonomy
Federal specialty code 207RE0101X (207RE0101X)
Mailing address
300 Pasteur Dr, Palo Alto, CA, 94304
NPI first listed
2007-02-24
NPI last updated
2024-04-28
NPI record certified
2024-04-28

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